DataGridViewRow.ContextMenuStrip 属性

public:
 virtual property System::Windows::Forms::ContextMenuStrip ^ ContextMenuStrip { System::Windows::Forms::ContextMenuStrip ^ get(); void set(System::Windows::Forms::ContextMenuStrip ^ value); };

public override System.Windows.Forms.ContextMenuStrip ContextMenuStrip { get; set; }

public override System.Windows.Forms.ContextMenuStrip? ContextMenuStrip { get; set; }

member this.ContextMenuStrip : System.Windows.Forms.ContextMenuStrip with get, set

Public Overrides Property ContextMenuStrip As ContextMenuStrip

与当前 ContextMenuStrip 关联的 DataGridViewRow。 默认值为 null。

下面的代码示例演示如何使用 DataGridViewColumn.ContextMenuStrip 属性，该属性几乎与 类的 DataGridViewRow 属性相同ContextMenuStrip。 此代码示例是 类中提供的更大代码示例的 DataGridViewColumn 一部分。

ToolStripMenuItem^ toolStripItem1;
void AddContextMenu()
{
   toolStripItem1->Text = L"Redden";
   toolStripItem1->Click += gcnew EventHandler( this, &DataGridViewColumnDemo::toolStripItem1_Click );
   System::Windows::Forms::ContextMenuStrip^ strip = gcnew System::Windows::Forms::ContextMenuStrip;
   IEnumerator^ myEnum = dataGridView->Columns->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      DataGridViewColumn^ column = safe_cast<DataGridViewColumn^>(myEnum->Current);
      column->ContextMenuStrip = strip;
      column->ContextMenuStrip->Items->Add( toolStripItem1 );
   }
}

DataGridViewCellEventArgs^ mouseLocation;

// Change the cell's color.
void toolStripItem1_Click( Object^ /*sender*/, EventArgs^ /*args*/ )
{
   dataGridView->Rows[ mouseLocation->RowIndex ]->Cells[ mouseLocation->ColumnIndex ]->Style->BackColor = Color::Red;
}


// Deal with hovering over a cell.
void dataGridView_CellMouseEnter( Object^ /*sender*/, DataGridViewCellEventArgs^ location )
{
   mouseLocation = location;
}

ToolStripMenuItem toolStripItem1 = new ToolStripMenuItem();

private void AddContextMenu()
{
    toolStripItem1.Text = "Redden";
    toolStripItem1.Click += new EventHandler(toolStripItem1_Click);
    ContextMenuStrip strip = new ContextMenuStrip();
    foreach (DataGridViewColumn column in dataGridView.Columns)
    {

        column.ContextMenuStrip = strip;
        column.ContextMenuStrip.Items.Add(toolStripItem1);
    }
}

private DataGridViewCellEventArgs mouseLocation;

// Change the cell's color.
private void toolStripItem1_Click(object sender, EventArgs args)
{
    dataGridView.Rows[mouseLocation.RowIndex]
        .Cells[mouseLocation.ColumnIndex].Style.BackColor
        = Color.Red;
}

// Deal with hovering over a cell.
private void dataGridView_CellMouseEnter(object sender,
    DataGridViewCellEventArgs location)
{
    mouseLocation = location;
}

WithEvents toolStripItem1 As New ToolStripMenuItem()

Private Sub AddContextMenu()
    toolStripItem1.Text = "Redden"
    Dim strip As New ContextMenuStrip()
    For Each column As DataGridViewColumn _
        In dataGridView.Columns()

        column.ContextMenuStrip = strip
        column.ContextMenuStrip.Items.Add(toolStripItem1)
    Next
End Sub
' Change the cell's color.
Private Sub toolStripItem1_Click(ByVal sender As Object, _
    ByVal args As EventArgs) _
    Handles toolStripItem1.Click

    dataGridView.Rows(mouseLocation.RowIndex) _
        .Cells(mouseLocation.ColumnIndex) _
        .Style.BackColor = Color.Red
End Sub

Private mouseLocation As DataGridViewCellEventArgs

' Deal with hovering over a cell.
Private Sub dataGridView_CellMouseEnter(ByVal sender As Object, _
    ByVal location As DataGridViewCellEventArgs) _
    Handles DataGridView.CellMouseEnter

    mouseLocation = location
End Sub

此属性指示在用户右键单击行时显示的快捷菜单，除非 DataGridView 控件 CellContextMenuStripNeeded 事件或行 ContextMenuStrip 属性替代所单击的特定单元格的快捷菜单。

DataGridView当设置控件DataSource属性或其 VirtualMode 属性为 true时，获取 属性的值ContextMenuStrip将RowContextMenuStripNeeded引发控件的 事件，并返回事件处理程序中指定的 属性的值DataGridViewRowContextMenuStripNeededEventArgs.ContextMenuStrip。 如果事件没有处理程序，则获取 属性的值 ContextMenuStrip 将返回先前指定的值或其默认值 null。

RowContextMenuStripNeeded处理大量数据时，处理事件主要有用，以避免在设置多行的行ContextMenuStrip值时造成性能损失。 有关详细信息，请参阅 缩放 Windows 窗体 DataGridView 控件的最佳做法。

更改此属性将在 RowContextMenuStripChanged 拥有 DataGridView的 上引发 事件（如果存在）。

如果当前行是共享的，请使用 GetContextMenuStrip 方法，而不是获取此属性的值。

• DataGridView
• RowContextMenuStripChanged
• RowContextMenuStripNeeded
• DataSource
• VirtualMode
• ContextMenuStrip
• 缩放 Windows 窗体 DataGridView 控件的最佳做法