Článek
11/17/2011

DataGridAutoGeneratingColumnEventArgs Class

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Provides data for the DataGrid.AutoGeneratingColumn event.

Inheritance Hierarchy

System.Object
  System.EventArgs
    System.ComponentModel.CancelEventArgs
      System.Windows.Controls.DataGridAutoGeneratingColumnEventArgs

Namespace: System.Windows.Controls
Assembly: System.Windows.Controls.Data (in System.Windows.Controls.Data.dll)

Syntax

'Declaration
Public Class DataGridAutoGeneratingColumnEventArgs _
    Inherits CancelEventArgs

public class DataGridAutoGeneratingColumnEventArgs : CancelEventArgs

The DataGridAutoGeneratingColumnEventArgs type exposes the following members.

Constructors

	Name	Description
	DataGridAutoGeneratingColumnEventArgs	Initializes a new instance of the DataGridAutoGeneratingColumnEventArgs class.

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Properties

	Name	Description
	Cancel	Gets or sets a value that indicates whether the operation should be canceled. (Inherited from CancelEventArgs.)
	Column	Gets the generated column.
	PropertyName	Gets the name of the property bound to the generated column.
	PropertyType	Gets the Type of the property bound to the generated column.

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Methods

	Name	Description
	Equals(Object)	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Remarks

The DataGridAutoGeneratingColumnEventArgs are used in the DataGrid.AutoGeneratingColumn event handler. The DataGridAutoGeneratingColumnEventArgs are used to access properties of the column that is being generated and to access information about the data item that the column is being generated from.

Examples

The following code example demonstrates how to use the DataGridAutoGeneratingColumnEventArgs. This example is part of a larger example available in the How to: Customize Auto-Generated Columns in the DataGrid Control topic.

Private Sub dataGrid1_AutoGeneratingColumn(ByVal sender As System.Object, ByVal e As System.Windows.Controls.DataGridAutoGeneratingColumnEventArgs)
    ' Modify the header of the Name column.
    If e.Column.Header.ToString() = "Name" Then
        e.Column.Header = "Task"
    End If
    '  Replace the DueDate column with a custom template column.
    If e.PropertyName = "DueDate" Then
        ' Create a new template column.
        Dim templateColumn As New DataGridTemplateColumn
        templateColumn.Header = "Due Date"
        templateColumn.CellTemplate = Me.Resources("dueDateCellTemplate")
        templateColumn.CellEditingTemplate = Me.Resources("dueDateCellEditingTemplate")
        templateColumn.SortMemberPath = "DueDate"
        ' ...
        ' Replace the auto-generated column with the templateColumn.
        e.Column = templateColumn

    End If
    ' Cancel AutoGeneration of all boolean columns.
    If e.PropertyType Is GetType(Boolean) Then
        e.Cancel = True
    End If
End Sub

private void dataGrid1_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
    // Modify the header of the Name column.
    if (e.Column.Header.ToString() == "Name")
        e.Column.Header = "Task";
    // Replace the DueDate column with a custom template column.
    if (e.PropertyName == "DueDate")
    {
        // Create a new template column.
        DataGridTemplateColumn templateColumn = new DataGridTemplateColumn();
        templateColumn.Header = "Due Date";
        templateColumn.CellTemplate = (DataTemplate)Resources["dueDateCellTemplate"];
        templateColumn.CellEditingTemplate = (DataTemplate)Resources["dueDateCellEditingTemplate"];
        templateColumn.SortMemberPath = "DueDate";
        // ...
        // Replace the auto-generated column with the templateColumn.
        e.Column = templateColumn;
    }

    // Cancel AutoGeneration of all boolean columns.
    if (e.PropertyType == typeof(bool))
        e.Cancel = true;
}

Version Information

Silverlight

Supported in: 5, 4, 3

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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