DataGridColumn.Visibility Propiedad

Definición

Espacio de nombres:

System.Windows.Controls

Ensamblado:

PresentationFramework.dll

Obtiene o establece la visibilidad de la columna.

public:
 property System::Windows::Visibility Visibility { System::Windows::Visibility get(); void set(System::Windows::Visibility value); };

public System.Windows.Visibility Visibility { get; set; }

member this.Visibility : System.Windows.Visibility with get, set

Public Property Visibility As Visibility

Valor de propiedad

Visibility

Valor de enumeración que especifica la visibilidad de la columna. El valor predeterminado registrado es Visible. Para obtener información sobre lo que puede afectar al valor, vea DependencyProperty.

Ejemplos

En el ejemplo siguiente se muestra cómo establecer la visibilidad de la columna.

<CheckBox Content="View Customer Details" Checked="CheckBox_Checked" Unchecked="CheckBox_Unchecked" />

<!-- ItemsSource is a DataTable that contains a list of customers.  The DataTable columns are  
     Title, FirstName, MiddleName, LastName, Suffix, CompanyName, EmailAddress, and Phone.-->
<DataGrid Grid.Row="1" Name="DG1" ItemsSource="{Binding}" AutoGeneratingColumn="DG1_AutoGeneratingColumn"  />

private void DG1_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
    //Set properties on the columns during auto-generation
    switch (e.Column.Header.ToString())
    {
        case "LastName":
            e.Column.CanUserSort = false;
            e.Column.Visibility = Visibility.Visible;
            break;
        case "FirstName":
            e.Column.Visibility = Visibility.Visible;
            break;
        case "CompanyName":
            e.Column.Visibility = Visibility.Visible;
            break;
        case "EmailAddress":
            e.Column.Visibility = Visibility.Visible;
            break;
        default:
            e.Column.Visibility = Visibility.Collapsed;
            break;
    }
}

private void CheckBox_Checked(object sender, RoutedEventArgs e)
{
    //Make each column in the collection visible
    foreach (DataGridColumn col in DG1.Columns)
    {
        col.Visibility = Visibility.Visible;
    }
}

private void CheckBox_Unchecked(object sender, RoutedEventArgs e)
{
    //Get the columns collection
    ObservableCollection<DataGridColumn> columns = DG1.Columns;

    //set the visibility for each column so only 4 columns are visible
    foreach (DataGridColumn col in columns)
    {
        switch (col.Header.ToString())
        {
            case "LastName":
                col.Visibility = Visibility.Visible;
                break;
            case "FirstName":
                col.Visibility = Visibility.Visible;
                break;
            case "CompanyName":
                col.Visibility = Visibility.Visible;
                break;
            case "EmailAddress":
                col.Visibility = Visibility.Visible;
                break;
            default:
                col.Visibility = Visibility.Collapsed;
                break;
        }
    }
}

Private Sub DG1_AutoGeneratingColumn(ByVal sender As Object, ByVal e As DataGridAutoGeneratingColumnEventArgs)
    'Set properties on the columns during auto-generation
    Select Case e.Column.Header.ToString()
        Case "LastName"
            e.Column.CanUserSort = False
            e.Column.Visibility = Visibility.Visible
            Exit Select
        Case "FirstName"
            e.Column.Visibility = Visibility.Visible
            Exit Select
        Case "CompanyName"
            e.Column.Visibility = Visibility.Visible
            Exit Select
        Case "EmailAddress"
            e.Column.Visibility = Visibility.Visible
            Exit Select
        Case Else
            e.Column.Visibility = Visibility.Collapsed
            Exit Select

    End Select
End Sub

Private Sub CheckBox_Checked(ByVal sender As Object, ByVal e As RoutedEventArgs)
    'Make each column in the collection visible
    For Each col As DataGridColumn In DG1.Columns
        col.Visibility = Visibility.Visible
    Next
End Sub

Private Sub CheckBox_Unchecked(ByVal sender As Object, ByVal e As RoutedEventArgs)
    'Get the columns collection
    Dim columns As ObservableCollection(Of DataGridColumn) = DG1.Columns

    'set the visibility for each column so only 4 columns are visible
    For Each col As DataGridColumn In columns
        Select Case col.Header.ToString()
            Case "LastName"
                col.Visibility = Visibility.Visible
                Exit Select
            Case "FirstName"
                col.Visibility = Visibility.Visible
                Exit Select
            Case "CompanyName"
                col.Visibility = Visibility.Visible
                Exit Select
            Case "EmailAddress"
                col.Visibility = Visibility.Visible
                Exit Select
            Case Else
                col.Visibility = Visibility.Collapsed
                Exit Select
        End Select

    Next
End Sub

Comentarios

Para ocultar una columna, establezca su Visibility propiedad en Collapsed.

Consulte también

• Columns