DataGrid.AutoGeneratingColumn Event

Occurs when an individual column is auto-generated.

Namespace:  System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

public event EventHandler<DataGridAutoGeneratingColumnEventArgs> AutoGeneratingColumn
<object AutoGeneratingColumn="EventHandler<DataGridAutoGeneratingColumnEventArgs>" .../>

You can change or cancel the column being created in the AutoGeneratingColumn event handler.

When all columns are auto-generated, the AutoGeneratedColumns event occurs.

The following example shows how to auto-generate columns and change the columns at creation time in the AutoGeneratingColumn event handler.

<!-- The DataGrid.DataContext is a DataTable that contains a list of customers.  The DataTable columns are  
     Title, FirstName, MiddleName, LastName, Suffix, CompanyName, EmailAddress, and Phone.-->
<DataGrid Name="DG1" ItemsSource="{Binding}" AutoGenerateColumns="True" AutoGeneratingColumn="DG1_AutoGeneratingColumn" />
//Access and update columns during autogeneration 
private void DG1_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
    string headername = e.Column.Header.ToString();

    //Cancel the column you don't want to generate 
    if (headername == "MiddleName")
    {
        e.Cancel = true;
    }

    //update column details when generating 
    if (headername == "FirstName")
    {
        e.Column.Header = "First Name";
    }
    else if (headername == "LastName")
    {
        e.Column.Header = "Last Name";
    }
    else if (headername == "EmailAddress")
    {
        e.Column.Header = "Email";

    }

}

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4
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