RowDefinitionCollection.Contains(RowDefinition) 方法

定義

命名空間:

System.Windows.Controls

組件:

PresentationFramework.dll

判斷 RowDefinition 內是否存在指定的 RowDefinitionCollection。

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

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

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

Public Function Contains (value As RowDefinition) As Boolean

參數

value

RowDefinition

識別正在測試的 RowDefinition。

傳回

Boolean

如果集合內存在 RowDefinition，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 是否存在 RowDefinition 于 RowDefinitionCollection 中。

private void containsRow(object sender, RoutedEventArgs e)
{
    if (grid1.RowDefinitions.Contains(rowDef1))
    {
        tp2.Text = "Grid Contains RowDefinition rowDef1";
    }
    else
    {
        tp2.Text = "Grid Does Not Contain RowDefinition rowDef1";
    }
}

Private Sub containsRow(ByVal sender As Object, ByVal e As RoutedEventArgs)
    If (grid1.RowDefinitions.Contains(rowDef1)) Then
        tp2.Text = "Grid Contains RowDefinition rowDef1"
    Else
        tp2.Text = "Grid Does Not Contain RowDefinition rowDef1"
    End If
End Sub

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

另請參閱

• RowDefinition