RowDefinitionCollection.Contains(RowDefinition) 方法

定义

命名空间:

System.Windows.Controls

程序集:

PresentationFramework.dll

确定 RowDefinition 中是否存在给定的 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

参数

value

RowDefinition

标识要测试的 RowDefinition。

返回

Boolean

如果集合中存在 RowDefinition，则为 true；否则为 false。

实现

Contains(T)

示例

下面的示例演示如何使用 Contains 该方法来确定 RowDefinition 是否存在于中 RowDefinitionCollection。

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

若要查看完整的示例，请参阅 如何：使用 ColumnDefinitionsCollections 和 RowDefinitionsCollections 操作列和行。

另请参阅

• RowDefinition