TreeNodeCollection
Wisej.Web.TreeNodeCollection
Last updated
Wisej.Web.TreeNodeCollection
Last updated
Namespace: Wisej.Web
Assembly: Wisej.Framework (3.1.0.0)
Represents a collection of TreeNode objects.
Int32: Returns the total number of TreeNode objects in the collection.
Boolean: Returns a value indicating whether the collection is read-only.
TreeNode: Returns or sets the TreeNode at the specified index in the collection.
Throws:
ArgumentException The TreeNode being assigned is also a parent causing a circular reference.
ArgumentNullException The value is null.
ArgumentOutOfRangeException The index value is less than 0 or is greater than the number of tree nodes in the collection.
TreeNode: Returns the TreeNode with the specified key from the collection.
Adds a new tree node with the specified label text to the end of the current TreeNodeCollection.
Returns: TreeNode. A TreeNode that represents the tree node being added to the collection.
Creates a new TreeNode with the specified key and text, and adds it to the collection.
Returns: TreeNode. The TreeNode that was added to the collection.
Creates a TreeNode with the specified key, text, and image, and adds it to the collection.
| Parameter | Type | Description |
|---|---|---|
key | The name of the TreeNode. | |
text | The text to display in the TreeNode. | |
imageIndex | The index of the image to display in the TreeNode. |
Returns: TreeNode. The TreeNode that was added to the collection.
Creates a TreeNode with the specified key, text, and image, and adds it to the collection.
| Parameter | Type | Description |
|---|---|---|
key | The name of the TreeNode. | |
text | The text to display in the TreeNode. | |
imageKey | The image to display in the TreeNode. |
Returns: TreeNode. The TreeNode that was added to the collection.
Creates a TreeNode with the specified key, text, and images, and adds it to the collection.
| Parameter | Type | Description |
|---|---|---|
key | The name of the TreeNode. | |
text | The text to display in the TreeNode. | |
imageIndex | The index of the image to display in the TreeNode. | |
selectedImageIndex | The index of the image to be displayed in the tree node when it is in a selected state. |
Returns: TreeNode. The tree node that was added to the collection.
Creates a TreeNode with the specified key, text, and images, and adds it to the collection.
| Parameter | Type | Description |
|---|---|---|
key | The name of the TreeNode. | |
text | The text to display in the TreeNode. | |
imageKey | The key of the image to display in the TreeNode. | |
selectedImageKey | The key of the image to display when the node is in a selected state. |
Returns: TreeNode. The TreeNode that was added to the collection.
Adds a previously created TreeNode to the end of the TreeNodeCollection.
Returns: Int32. The zero-based index value of the TreeNode added to the TreeNodeCollection.
Throws:
ArgumentNullException node is null.
ArgumentException The node is currently assigned to another TreeView or it is a parent node causing a circular reference.
Adds an array of previously created TreeNode objects to the collection.
| Parameter | Type | Description |
|---|---|---|
nodes | An array of TreeNode objects representing the tree nodes to add to the collection. |
Throws:
ArgumentNullException nodes is null or one of the items in the collection is null.
ArgumentException nodes is the child of another TreeView.
Removes all tree nodes from the collection.
Removes and disposes all tree nodes from the collection.
| Parameter | Type | Description |
|---|---|---|
dispose | Indicates whether to dispose the tree nodes removed from the collection. |
Determines whether the specified TreeNode is a member of the collection.
Returns: Boolean. true if the TreeNode is a member of the collection; otherwise, false.
Determines whether the collection contains a TreeNode with the specified key.
Returns: Boolean. true to indicate the collection contains a TreeNode with the specified key; otherwise, false.
Copies the entire collection into an existing array at a specified location within the array.
| Parameter | Type | Description |
|---|---|---|
dest | The destination array. | |
index | The index in the destination array at which storing begins. |
Finds the TreeNode objects with specified key, optionally searching sub nodes.
| Parameter | Type | Description |
|---|---|---|
key | The name of the tree node to search for. | |
searchAllChildren | true to search child nodes of tree nodes; otherwise, false. |
Returns: TreeNode[]. An array of TreeNode objects whose Name property matches the specified key.
Returns an enumerator that can be used to iterate through the TreeNodeCollection.
Returns: IEnumerator<TreeNode>. An IEnumerator that represents the TreeNodeCollection.
Returns the index of the specified TreeNode in the collection.
Returns: Int32. The zero-based index of the item found in the tree node collection; otherwise, -1.
Returns the index of the first occurrence of a TreeNode with the specified key.
| Parameter | Type | Description |
|---|---|---|
key | The name of the tree node to search for. |
Returns: Int32. The zero-based index of the first occurrence of a tree node with the specified key, if found; otherwise, -1.
Inserts an existing tree node into the tree node collection at the specified location.
| Parameter | Type | Description |
|---|---|---|
index | The indexed location within the collection to insert the TreeNode. | |
node | The TreeNode to insert into the collection. |
Throws:
ArgumentNullException node is null.
ArgumentException The node is currently assigned to another TreeView or it is a parent node causing a circular reference.
Creates a TreeNode with the specified text and inserts it at the specified index.
| Parameter | Type | Description |
|---|---|---|
index | The location within the collection to insert the TreeNode. | |
text | The text to display in the TreeNode. |
Returns: TreeNode. The TreeNode that was inserted in the collection.
Creates a tree node with the specified text and key, and inserts it into the collection.
| Parameter | Type | Description |
|---|---|---|
index | The location within the collection to insert the TreeNode. | |
key | The name of the TreeNode. | |
text | The text to display in the TreeNode. |
Returns: TreeNode. The TreeNode that was inserted in the collection.
Creates a TreeNode with the specified key, text, and image, and inserts it into the collection at the specified index.
| Parameter | Type | Description |
|---|---|---|
index | The location within the collection to insert the TreeNode. | |
key | The name of the TreeNode. | |
text | The text to display in the TreeNode. | |
imageIndex | The index of the image to display in the TreeNode. |
Returns: TreeNode. The TreeNode that was inserted in the collection.
Creates a TreeNode with the specified key, text, and image, and inserts it into the collection at the specified index.
| Parameter | Type | Description |
|---|---|---|
index | The location within the collection to insert the TreeNode. | |
key | The name of the TreeNode. | |
text | The text to display in the TreeNode. | |
imageKey | The key of the image to display in the TreeNode. |
Returns: TreeNode. The TreeNode that was inserted in the collection.
Creates a TreeNode with the specified key, text, and images, and inserts it into the collection at the specified index.
| Parameter | Type | Description |
|---|---|---|
index | The location within the collection to insert the TreeNode. | |
key | The name of the TreeNode. | |
text | The text to display in the TreeNode. | |
imageIndex | The index of the image to display in the TreeNode. | |
selectedImageIndex | The index of the image to display in the TreeNode when it is in a selected state. |
Returns: TreeNode. The TreeNode that was inserted in the collection.
Creates a TreeNode with the specified key, text, and images, and inserts it into the collection at the specified index.
| Parameter | Type | Description |
|---|---|---|
index | The location within the collection to insert the TreeNode. | |
key | The name of the TreeNode. | |
text | The text to display in the TreeNode. | |
imageKey | The key of the image to display in the TreeNode. | |
selectedImageKey | The key of the image to display in the TreeNode when it is in a selected state. |
Returns: TreeNode. The TreeNode that was inserted in the collection.
Removes the specified TreeNode from the TreeNodeCollection.
Throws:
ArgumentNullException node is null.
Removes a tree node from the tree node collection at a specified index.
Removes the TreeNode with the specified key from the collection.
| Parameter | Type | Description |
|---|---|---|
key | The name of the tree node to remove from the collection. |
CollectionChangeEventHandler Fired when the collection changes.
