DataGridColumnStyle.NullText 属性
定义
获取或设置在列包含 null 时所显示的文本。Gets or sets the text that is displayed when the column contains null.
public:
virtual property System::String ^ NullText { System::String ^ get(); void set(System::String ^ value); };
public virtual string NullText { get; set; }
member this.NullText : string with get, set
Public Overridable Property NullText As String
属性值
在包含 Value 的列中显示的字符串。A string displayed in a column containing a Value.
示例
下面的代码示例将 NullText 属性设置为一个新字符串。The following code example sets the NullText property to a new string.
private:
void SetNullText()
{
DataGridColumnStyle^ myGridColumn;
myGridColumn = dataGrid1->TableStyles[ 0 ]->GridColumnStyles[ 0 ];
myGridColumn->NullText = "Null Text";
}
private void SetNullText()
{
DataGridColumnStyle myGridColumn;
myGridColumn = dataGrid1.TableStyles[0].GridColumnStyles[0];
myGridColumn.NullText = "Null Text";
}
Private Sub SetNullText()
Dim myGridColumn As DataGridColumnStyle
myGridColumn = dataGrid1.TableStyles(0).GridColumnStyles(0)
myGridColumn.NullText = "Null Text"
End Sub
注解
DataColumn类的 AllowDBNull 属性确定列是否可以包含 null 值。The DataColumn class's AllowDBNull property determines if a column can contain null values.