# DataGridViewColumnStateChangedEventHandler

Namespace: **Wisej.Web**

Assembly: **Wisej.Framework** (4.0.0.0)

Represents the method that will handle the [ColumnStateChanged](https://docs.wisej.com/api/wisej.web/lists-and-grids/datagridview/..#columnstatechanged) event of a [DataGridView](https://docs.wisej.com/api/wisej.web/lists-and-grids/datagridview).

{% tabs %}
{% tab title="C#" %}

```csharp
public delegate void DataGridViewColumnStateChangedEventHandler(Object sender, DataGridViewColumnStateChangedEventArgs e)
```

{% endtab %}

{% tab title="VB.NET" %}

```visual-basic
Public Delegate Sub DataGridViewColumnStateChangedEventHandler(ByVal sender As [Object], ByVal e As DataGridViewColumnStateChangedEventArgs)
```

{% endtab %}
{% endtabs %}

## Parameters

| Name       | Type                                                                                                                                                           | Description                                                                                                                                                                                    |
| ---------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **sender** | [Object](https://docs.microsoft.com/dotnet/api/system.object)                                                                                                  | The source of the event.                                                                                                                                                                       |
| **e**      | [DataGridViewColumnStateChangedEventArgs](https://docs.wisej.com/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewcolumnstatechangedeventargs) | A [DataGridViewColumnStateChangedEventArgs](https://docs.wisej.com/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewcolumnstatechangedeventargs) that contains the event data. |

## Fired By

| Name                                                                                                                       | Description                                                  |
| -------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------ |
| [DataGridView.ColumnStateChanged](https://docs.wisej.com/api/wisej.web/lists-and-grids/datagridview/..#columnstatechanged) | Fired when a column changes state, such as becoming visible. |