DataGridColumn.Visibility Propriété
Important
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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, setPublic Property Visibility As VisibilityValeur 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.
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
Pour masquer une colonne, définissez sa Visibility propriété Collapsedsur .