# TextBoxBase Namespace: **Wisej.Web** Assembly: **Wisej.Framework** (4.0.0.0) * [Control](https://docs.wisej.com/api/wisej.web/general/control) * [TextBoxBase](https://docs.wisej.com/api/wisej.web/editors/wisej.web.textboxbase) Implements the basic functionality required by text controls. {% tabs %} {% tab title="C#" %} ```csharp public class TextBoxBase : Control, IModified, ILabel, IReadOnly, IValidation ``` {% endtab %} {% tab title="VB.NET" %} ```visual-basic Public Class TextBoxBase Inherits Control Implements IModified, ILabel, IReadOnly, IValidation ``` {% endtab %} {% endtabs %} ## Constructors ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) TextBoxBase() Initializes an instance of a TextBoxBase derived control. ## Properties ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) AcceptsTab [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean): Returns or sets whether pressing the TAB key in a multiline text box control types a TAB character in the control instead of moving the focus to the next control in the tab order. (Default: `False`) The [Multiline](#multiline) property must be true to get a TAB character in the control. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) AutoComplete [AutoComplete](https://docs.wisej.com/api/wisej.web/enumerations/wisej.web.autocomplete): Returns of sets whether the browser can auto complete the field with values previously entered by the user. (Default: `Default`) ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) AutoCompleteList [String\[\]](https://docs.microsoft.com/dotnet/api/system.string): Identifies a list of pre-defined options to suggest to the user. (Default: `null`) ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) AutoSize [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean): Returns or sets whether the height of the control is set automatically. (Default: `True`) ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) BorderStyle [BorderStyle](https://docs.wisej.com/api/wisej.web/enumerations/wisej.web.borderstyle): Returns or sets the border type of the text box control. (Default: `Solid`) ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) CanUndo [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean): Returns a value indicating whether the user can undo the previous operation in a text box control. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-9bf7fa01e02f4da0f9ef90d3b049ae43e664919e%2Fprotected.png?alt=media) DefaultSize [Size](https://docs.microsoft.com/dotnet/api/system.drawing.size): Returns the default size for a text box control. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) EnableNativeContextMenu [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean): Enables or disables the browser's context menu. (Default: `True`) ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) Invalid [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean): Returns or sets a value that indicates that the control is invalid. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) InvalidMessage [String](https://docs.microsoft.com/dotnet/api/system.string): Returns or sets the invalid message that is shown in the invalid tooltip. (Default: `""`) ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) Label [LabelWrapper](https://docs.wisej.com/api/wisej.web/editors/wisej.web.labelwrapper): Provides a label related to the control. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) LabelText [String](https://docs.microsoft.com/dotnet/api/system.string): Returns or sets the localizable label associated with this control. (Default: `""`) ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) Lines [String\[\]](https://docs.microsoft.com/dotnet/api/system.string): Returns or sets the lines of text in a text box control. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) MaxLength [Int32](https://docs.microsoft.com/dotnet/api/system.int32): Returns or sets the maximum number of characters the user can type or paste into the text box control. (Default: `0`) **Throws:** * [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)\ The value assigned to the property is less than 0. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) Modified [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean): Returns or sets a value that indicates that the text box control has been modified by the user since the control was created or its contents were last set. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) Multiline [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean): Returns or sets whether this is a multiline text box control. (Default: `False`) **Throws:** * [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)\ The property cannot be modified after the component has been created. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) ReadOnly [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean): Returns or sets whether the text box control is read-only. (Default: `False`) ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) SelectedText [String](https://docs.microsoft.com/dotnet/api/system.string): Returns or sets a value indicating the currently selected text in the control. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) SelectionLength [Int32](https://docs.microsoft.com/dotnet/api/system.int32): Returns or sets the number of characters selected in the text box. **Throws:** * [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)\ The assigned value is less than -1. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) SelectionStart [Int32](https://docs.microsoft.com/dotnet/api/system.int32): Returns or sets the starting point of text selected in the text box. **Throws:** * [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)\ The assigned value is less than zero. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) SelectOnEnter [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean): Selects the text when gaining the focus. (Default: `False`) ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) Text [String](https://docs.microsoft.com/dotnet/api/system.string): Returns or sets the current text in the text box. (Default: `""`) ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) TextLength [Int32](https://docs.microsoft.com/dotnet/api/system.int32): Returns the length of text in the control. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) Tools [ComponentToolCollection](https://docs.wisej.com/api/wisej.web/editors/wisej.web.componenttoolcollection): Returns the instance of [ComponentToolCollection](https://docs.wisej.com/api/wisej.web/editors/wisej.web.componenttoolcollection) associated with this control. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) Watermark [String](https://docs.microsoft.com/dotnet/api/system.string): Returns or sets the text to show when the textbox is empty. (Default: `null`) ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) WordWrap [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean): Indicates whether a multiline text box control automatically wraps words to the beginning of the next line when necessary. (Default: `True`) ## Methods ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) AppendText(text) Appends text to the current text of a text box. | Parameter | Type | Description | | --------- | ------------------------------------------------------------- | ----------------------------------------------------------- | | **text** | [String](https://docs.microsoft.com/dotnet/api/system.string) | The text to append to the current contents of the text box. | ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) Clear() Clears all text from the text box control. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) Copy() Copies the current selection in the text box to the Clipboard. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) Cut() Moves the current selection in the text box to the Clipboard. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) DeselectAll() Specifies that the value of the [SelectionLength](#selectionlength) property is zero so that no characters are selected in the control. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-9bf7fa01e02f4da0f9ef90d3b049ae43e664919e%2Fprotected.png?alt=media) Dispose(disposing) Dispose the control. | Parameter | Type | Description | | ------------- | --------------------------------------------------------------- | --------------------------------------------------------------------------- | | **disposing** | [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean) | true when this method is called by the application rather than a finalizer. | ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-9bf7fa01e02f4da0f9ef90d3b049ae43e664919e%2Fprotected.png?alt=media) OnAcceptsTabChanged(e) Fires the [AcceptsTabChanged](#acceptstabchanged) event. | Parameter | Type | Description | | --------- | ------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------- | | **e** | [EventArgs](https://docs.microsoft.com/dotnet/api/system.eventargs) | A [EventArgs](https://docs.microsoft.com/dotnet/api/system.eventargs) that contains the event data. | ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-9bf7fa01e02f4da0f9ef90d3b049ae43e664919e%2Fprotected.png?alt=media) OnModifiedChanged(e) Fires the [ModifiedChanged](#modifiedchanged) event. | Parameter | Type | Description | | --------- | ------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------- | | **e** | [EventArgs](https://docs.microsoft.com/dotnet/api/system.eventargs) | A [EventArgs](https://docs.microsoft.com/dotnet/api/system.eventargs) that contains the event data. | ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-9bf7fa01e02f4da0f9ef90d3b049ae43e664919e%2Fprotected.png?alt=media) OnMultilineChanged(e) Fires the [MultilineChanged](#multilinechanged) event. | Parameter | Type | Description | | --------- | ------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------- | | **e** | [EventArgs](https://docs.microsoft.com/dotnet/api/system.eventargs) | A [EventArgs](https://docs.microsoft.com/dotnet/api/system.eventargs) that contains the event data. | ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-9bf7fa01e02f4da0f9ef90d3b049ae43e664919e%2Fprotected.png?alt=media) OnReadOnlyChanged(e) Fires the [ReadOnlyChanged](#readonlychanged) event. | Parameter | Type | Description | | --------- | ------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- | | **e** | [EventArgs](https://docs.microsoft.com/dotnet/api/system.eventargs) | An [EventArgs](https://docs.microsoft.com/dotnet/api/system.eventargs) that contains the event data. | ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-9bf7fa01e02f4da0f9ef90d3b049ae43e664919e%2Fprotected.png?alt=media) OnToolClick(e) Fires the ToolClick event. | Parameter | Type | Description | | --------- | ----------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------- | | **e** | [ToolClickEventArgs](https://docs.wisej.com/api/wisej.web/editors/wisej.web.toolclickeventargs) | A [ToolClickEventArgs](https://docs.wisej.com/api/wisej.web/editors/wisej.web.toolclickeventargs) that contains the event data. | ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-9bf7fa01e02f4da0f9ef90d3b049ae43e664919e%2Fprotected.png?alt=media) OnValidating(e) Fires the [Validating](https://docs.wisej.com/api/general/control#validating) event. | Parameter | Type | Description | | --------- | ---------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------- | | **e** | [CancelEventArgs](https://docs.microsoft.com/dotnet/api/system.componentmodel.canceleventargs) | A [EventArgs](https://docs.microsoft.com/dotnet/api/system.eventargs) that contains the event data. | ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-9bf7fa01e02f4da0f9ef90d3b049ae43e664919e%2Fprotected.png?alt=media) OnWebEvent(e) Processes the event from the client. | Parameter | Type | Description | | --------- | ------------------------------------------------------------------------------ | ---------------- | | **e** | [WisejEventArgs](https://docs.wisej.com/api/wisej.core/general/wisejeventargs) | Event arguments. | ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-9bf7fa01e02f4da0f9ef90d3b049ae43e664919e%2Fprotected.png?alt=media) OnWebRender(config) Renders the client component. | Parameter | Type | Description | | ---------- | ------------------------------------------------------------- | ----------------------------- | | **config** | [Object](https://docs.microsoft.com/dotnet/api/system.object) | Dynamic configuration object. | ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-9bf7fa01e02f4da0f9ef90d3b049ae43e664919e%2Fprotected.png?alt=media) OnWebUpdate(state) Updates the client component using the state information. | Parameter | Type | Description | | --------- | ------------------------------------------------------------- | --------------------- | | **state** | [Object](https://docs.microsoft.com/dotnet/api/system.object) | Dynamic state object. | ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) Paste() Replaces the current selection in the text box with the contents of the Clipboard. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) ScrollToX(x) Scrolls to the given left position. | Parameter | Type | Description | | --------- | ----------------------------------------------------------- | ------------------------------- | | **x** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The horizontal scroll position. | ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) ScrollToY(y) Scrolls to the given top position. | Parameter | Type | Description | | --------- | ----------------------------------------------------------- | ----------------------------- | | **y** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The vertical scroll position. | ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) Select(start, length) Selects a range of text in the text box. | Parameter | Type | Description | | ---------- | ----------------------------------------------------------- | -------------------------------------------------------------------------------------- | | **start** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The position of the first character in the current text selection within the text box. | | **length** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The number of characters to select. | **Throws:** * [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)\ The value of the *start* parameter is less than zero. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) SelectAll() Selects all text in the text box. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-9bf7fa01e02f4da0f9ef90d3b049ae43e664919e%2Fprotected.png?alt=media) SetBoundsCore(x, y, width, height, specified) Sets the specified bounds of the [ComboBox](https://docs.wisej.com/api/wisej.web/lists-and-grids/combobox) control. | Parameter | Type | Description | | ------------- | ---------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------- | | **x** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The new [Left](https://docs.wisej.com/api/general/control#left) property value of the control. | | **y** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The new [Top](https://docs.wisej.com/api/general/control#top) property value of the control. | | **width** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The new [Width](https://docs.wisej.com/api/general/control#width) property value of the control. | | **height** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | Not used. | | **specified** | [BoundsSpecified](https://docs.wisej.com/api/wisej.web/enumerations/wisej.web.boundsspecified) | A combination of the [BoundsSpecified](https://docs.wisej.com/api/wisej.web/enumerations/wisej.web.boundsspecified) values. | ## Events ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) AcceptsTabChanged [EventHandler](https://docs.microsoft.com/dotnet/api/system.eventhandler) Fired when the value of the [AcceptsTab](#acceptstab) property has changed. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) ModifiedChanged [EventHandler](https://docs.microsoft.com/dotnet/api/system.eventhandler) Fired when the value of the [Modified](#modified) property has changed. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) MultilineChanged [EventHandler](https://docs.microsoft.com/dotnet/api/system.eventhandler) Fired when the value of the [Multiline](#multiline) property has changed. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) ReadOnlyChanged [EventHandler](https://docs.microsoft.com/dotnet/api/system.eventhandler) Fired when the value of the [ReadOnly](#readonly) property has changed. ### ![](https://1075938901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2HvlWXJQMV7DxhGzw7Y1%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media) ToolClick [ToolClickEventHandler](https://docs.wisej.com/api/wisej.web/editors/wisej.web.toolclickeventhandler) Fired when a [ComponentTool](https://docs.wisej.com/api/wisej.web/editors/wisej.web.componenttool) is clicked. ## Inherited By | Name | Description | | -------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [MaskedTextBox](https://docs.wisej.com/api/wisej.web/editors/maskedtextbox) | Uses a mask to distinguish between proper and improper user input. | | [TextBox](https://docs.wisej.com/api/wisej.web/editors/wisej.web.textbox) | Represents a text box control that allows the user to enter any value. | | [DataGridViewMaskedTextBoxEditingControl](https://docs.wisej.com/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewmaskedtextboxeditingcontrol) | Represents a [MaskedTextBox](https://docs.wisej.com/api/wisej.web/editors/maskedtextbox) control that can be hosted in a [DataGridViewMaskedTextBoxCell](https://docs.wisej.com/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewmaskedtextboxcell) cell. | | [DataGridViewTextBoxEditingControl](https://docs.wisej.com/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewtextboxeditingcontrol) | Represents a [TextBox](https://docs.wisej.com/api/wisej.web/editors/wisej.web.textbox) control that can be hosted in a [DataGridViewTextBoxCell](https://docs.wisej.com/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewtextboxcell) cell when the cell's [WrapMode](https://docs.wisej.com/api/lists-and-grids/datagridview/wisej.web.datagridviewcellstyle#wrapmode) is set to [False](https://docs.wisej.com/api/lists-and-grids/datagridview/wisej.web.datagridviewtristate#fields). | | [TagTextBox](https://docs.wisej.com/api/wisej.web/editors/tagtextbox) | Represents a data field that displays a list of selectable and removable tags. The control recognizes tags as the user types and adds in front of the editable field. | | [TypedTextBox](https://docs.wisej.com/api/wisej.web/editors/wisej.web.typedtextbox) | Represents a text box control that allows the user to enter a typed value. | ## Implements | Name | Description | | ---------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [IUserData](https://docs.wisej.com/api/wisej.web/interfaces/wisej.web.iuserdata) | Provides access to the `UserData` and `Tag` properties associated to the component implementing this interface. | | [IBindableComponent](https://docs.wisej.com/api/wisej.web/data-binding/wisej.web.ibindablecomponent) | Bindable components implement this interface. | | [IDropTarget](https://docs.wisej.com/api/wisej.web/interfaces/wisej.web.idroptarget) | Controls that support drag & drop operations implement this interface. | | [ILabel](https://docs.wisej.com/api/wisej.web/interfaces/wisej.web.ilabel) | Provides access to the [LabelWrapper](https://docs.wisej.com/api/wisej.web/editors/wisej.web.labelwrapper) associated with the controls that implement this interface. | | [IReadOnly](https://docs.wisej.com/api/wisej.web/interfaces/wisej.web.ireadonly) | Provides access to the [ReadOnly](https://docs.wisej.com/api/interfaces/wisej.web.ireadonly#readonly) property for coontrols that support the read-only mode. | | [IModified](https://docs.wisej.com/api/wisej.web/interfaces/wisej.web.imodified) | Provides access to the [Modified](https://docs.wisej.com/api/interfaces/wisej.web.imodified#modified) property and [ModifiedChanged](https://docs.wisej.com/api/interfaces/wisej.web.imodified#modifiedchanged) event for controls that implement this interface. | | [IValidation](https://docs.wisej.com/api/wisej.web/interfaces/wisej.web.ivalidation) | Provides access to the validation events and properties property for controls that support validation. | | [IWisejComponent](https://docs.wisej.com/api/wisej.core/interfaces/wisej.core.iwisejcomponent) | All wisej components implement this interface. | | [IWisejControl](https://docs.wisej.com/api/wisej.core/interfaces/wisej.core.iwisejcontrol) | All wisej controls derived from the [Control](https://docs.wisej.com/api/wisej.web/general/control) class must implement this interface. | | [IWisejSerializable](https://docs.wisej.com/api/wisej.core/interfaces/wisej.core.iwisejserializable) | Allows an object to serialize itself. |