DataGrid.AutoGeneratingColumn イベント

定義

個々の列が自動生成されたときに発生します。Occurs when an individual column is auto-generated.

public:
 event EventHandler<System::Windows::Controls::DataGridAutoGeneratingColumnEventArgs ^> ^ AutoGeneratingColumn;
public event EventHandler<System.Windows.Controls.DataGridAutoGeneratingColumnEventArgs> AutoGeneratingColumn;
member this.AutoGeneratingColumn : EventHandler<System.Windows.Controls.DataGridAutoGeneratingColumnEventArgs> 
Public Event AutoGeneratingColumn As EventHandler(Of DataGridAutoGeneratingColumnEventArgs) 

次の例では、 AutoGeneratingColumnイベントハンドラーの作成時に列を自動生成し、列を変更する方法を示します。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";
       
    }

}
'Access and update columns during autogeneration
Private Sub DG1_AutoGeneratingColumn(ByVal sender As Object, ByVal e As DataGridAutoGeneratingColumnEventArgs)
    Dim headername As String = e.Column.Header.ToString()
    'Cancel the column you don't want to generate
    If headername = "MiddleName" Then
        e.Cancel = True
    End If

    'update column details when generating
    If headername = "FirstName" Then
        e.Column.Header = "First Name"
    ElseIf headername = "LastName" Then
        e.Column.Header = "Last Name"
    ElseIf headername = "EmailAddress" Then
        e.Column.Header = "Email"
    End If
End Sub

注釈

AutoGeneratingColumnイベントハンドラーで作成される列を変更または取り消すことができます。You can change or cancel the column being created in the AutoGeneratingColumn event handler.

すべての列が自動生成されるとAutoGeneratedColumns 、イベントが発生します。When all columns are auto-generated, the AutoGeneratedColumns event occurs.

適用対象

こちらもご覧ください