DataGridColumn.Visibility Propriété

Définition

Espace de noms:

System.Windows.Controls

Assembly:

PresentationFramework.dll

Obtient ou définit la visibilité de la colonne.

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

Valeur de propriété

Visibility

Valeur d'énumération qui spécifie la visibilité de colonne. La valeur par défaut enregistrée est Visible. Pour plus d'informations sur ce qui peut influencer la valeur, consultez DependencyProperty.

Exemples

L’exemple suivant montre comment définir la visibilité de la colonne.

<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

Remarques

Pour masquer une colonne, définissez sa Visibility propriété Collapsedsur .

Voir aussi

• Columns