ColumnDefinitionCollection.Contains(ColumnDefinition) 方法

定義

命名空間:

System.Windows.Controls

組件:

PresentationFramework.dll

判斷 ColumnDefinition 內是否存在指定的 ColumnDefinitionCollection。

public:
 virtual bool Contains(System::Windows::Controls::ColumnDefinition ^ value);

public bool Contains (System.Windows.Controls.ColumnDefinition value);

abstract member Contains : System.Windows.Controls.ColumnDefinition -> bool
override this.Contains : System.Windows.Controls.ColumnDefinition -> bool

Public Function Contains (value As ColumnDefinition) As Boolean

參數

value

ColumnDefinition

識別正在測試的 ColumnDefinition。

傳回

Boolean

如果集合內存在 ColumnDefinition，則為 true，否則為 false。

實作

Contains(T)

範例

下列範例示範如何使用 Contains 方法來判斷 ColumnDefinition 是否存在於 中 ColumnDefinitionCollection 。

private void containsCol(object sender, RoutedEventArgs e)
{
    if (grid1.ColumnDefinitions.Contains(colDef1))
    {
        tp3.Text = "Grid Contains ColumnDefinition colDef1";
    }
    else
    {
        tp3.Text = "Grid Does Not Contain ColumnDefinition colDef1";
    }
}

Private Sub containsCol(ByVal sender As Object, ByVal e As RoutedEventArgs)
    If (grid1.ColumnDefinitions.Contains(colDef1)) Then
        tp3.Text = "Grid Contains ColumnDefinition colDef1"
    Else
        tp3.Text = "Grid Does Not Contain ColumnDefinition colDef1"
    End If
End Sub

若要檢視完整的範例，請參閱 如何：使用 ColumnDefinitionsCollections 和 RowDefinitionsCollections 運算元據行和資料列。

另請參閱

• ColumnDefinition