DataGridView.AdjustColumnHeaderBorderStyle 方法

  • 參考

定義

命名空間:
System.Windows.Forms
組件:
System.Windows.Forms.dll

針對目前繪製之 DataGridView 的資料行標頭儲存格，調整 DataGridViewAdvancedBorderStyle。

public:
 virtual System::Windows::Forms::DataGridViewAdvancedBorderStyle ^ AdjustColumnHeaderBorderStyle(System::Windows::Forms::DataGridViewAdvancedBorderStyle ^ dataGridViewAdvancedBorderStyleInput, System::Windows::Forms::DataGridViewAdvancedBorderStyle ^ dataGridViewAdvancedBorderStylePlaceholder, bool isFirstDisplayedColumn, bool isLastVisibleColumn);
public virtual System.Windows.Forms.DataGridViewAdvancedBorderStyle AdjustColumnHeaderBorderStyle (System.Windows.Forms.DataGridViewAdvancedBorderStyle dataGridViewAdvancedBorderStyleInput, System.Windows.Forms.DataGridViewAdvancedBorderStyle dataGridViewAdvancedBorderStylePlaceholder, bool isFirstDisplayedColumn, bool isLastVisibleColumn);
abstract member AdjustColumnHeaderBorderStyle : System.Windows.Forms.DataGridViewAdvancedBorderStyle * System.Windows.Forms.DataGridViewAdvancedBorderStyle * bool * bool -> System.Windows.Forms.DataGridViewAdvancedBorderStyle
override this.AdjustColumnHeaderBorderStyle : System.Windows.Forms.DataGridViewAdvancedBorderStyle * System.Windows.Forms.DataGridViewAdvancedBorderStyle * bool * bool -> System.Windows.Forms.DataGridViewAdvancedBorderStyle
Public Overridable Function AdjustColumnHeaderBorderStyle (dataGridViewAdvancedBorderStyleInput As DataGridViewAdvancedBorderStyle, dataGridViewAdvancedBorderStylePlaceholder As DataGridViewAdvancedBorderStyle, isFirstDisplayedColumn As Boolean, isLastVisibleColumn As Boolean) As DataGridViewAdvancedBorderStyle

參數

dataGridViewAdvancedBorderStyleInput
DataGridViewAdvancedBorderStyle

DataGridViewAdvancedBorderStyle，代表要修改的資料行行首框線樣式。

dataGridViewAdvancedBorderStylePlaceholder
DataGridViewAdvancedBorderStyle

DataGridViewAdvancedBorderStyle，可用來儲存對資料行標頭框線樣式所做的中繼變更。

isFirstDisplayedColumn
Boolean

true 表示目前所繪製的 DataGridViewCell 位於顯示在 DataGridView上的第一個資料行中；否則為 false。

isLastVisibleColumn
Boolean

true 表示目前所繪製的 DataGridViewCell 位於 DataGridView 中 Visible 屬性設定為 true 的最後一個資料行中；否則為 false。

傳回

DataGridViewAdvancedBorderStyle

DataGridViewAdvancedBorderStyle，表示目前資料行標頭的框線樣式。

範例

下列程式碼範例示範如何覆寫 AdjustColumnHeaderBorderStyle 方法來自訂資料行行首儲存格的框線。 此程式碼範例是針對 類別提供的較大範例的 DataGridViewAdvancedBorderStyle 一部分。

public override DataGridViewAdvancedBorderStyle AdjustColumnHeaderBorderStyle(
    DataGridViewAdvancedBorderStyle dataGridViewAdvancedBorderStyleInput,
    DataGridViewAdvancedBorderStyle dataGridViewAdvancedBorderStylePlaceHolder,
    bool firstDisplayedColumn,
    bool lastVisibleColumn)
{
    // Customize the left border of the first column header and the
    // bottom border of all the column headers. Use the input style for 
    // all other borders.
    dataGridViewAdvancedBorderStylePlaceHolder.Left = firstDisplayedColumn ?
        DataGridViewAdvancedCellBorderStyle.OutsetDouble :
        DataGridViewAdvancedCellBorderStyle.None;
    dataGridViewAdvancedBorderStylePlaceHolder.Bottom =
        DataGridViewAdvancedCellBorderStyle.Single;

    dataGridViewAdvancedBorderStylePlaceHolder.Right =
        dataGridViewAdvancedBorderStyleInput.Right;
    dataGridViewAdvancedBorderStylePlaceHolder.Top =
        dataGridViewAdvancedBorderStyleInput.Top;

    return dataGridViewAdvancedBorderStylePlaceHolder;
}

    Public Overrides Function AdjustColumnHeaderBorderStyle( _
        ByVal dataGridViewAdvancedBorderStyleInput As DataGridViewAdvancedBorderStyle, _
        ByVal dataGridViewAdvancedBorderStylePlaceHolder As DataGridViewAdvancedBorderStyle, _
        ByVal firstDisplayedColumn As Boolean, ByVal lastVisibleColumn As Boolean) _
        As DataGridViewAdvancedBorderStyle

        ' Customize the left border of the first column header and the
        ' bottom border of all the column headers. Use the input style for 
        ' all other borders.
        If firstDisplayedColumn Then
            dataGridViewAdvancedBorderStylePlaceHolder.Left = _
                DataGridViewAdvancedCellBorderStyle.OutsetDouble
        Else
            dataGridViewAdvancedBorderStylePlaceHolder.Left = _
                DataGridViewAdvancedCellBorderStyle.None
        End If

        With dataGridViewAdvancedBorderStylePlaceHolder
            .Bottom = DataGridViewAdvancedCellBorderStyle.Single
            .Right = dataGridViewAdvancedBorderStyleInput.Right
            .Top = dataGridViewAdvancedBorderStyleInput.Top
        End With

        Return dataGridViewAdvancedBorderStylePlaceHolder
    End Function
End Class

備註

控制項 DataGridView 會在內部呼叫 AdjustColumnHeaderBorderStyle 方法，以判斷資料行標題儲存格的框線外觀。 控制項 DataGridView 通常會使用 參數的 AdvancedColumnHeadersBorderStyle 屬性值 dataGridViewAdvancedBorderStyleInput 。

給繼承者的注意事項

如果您想要自訂資料行行首儲存格上框線的外觀，請覆寫這個方法。

適用於

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