MouseEventArgs.Button 属性

定义

命名空间:

System.Windows.Forms

程序集:

System.Windows.Forms.dll

获取曾按下的是哪个鼠标按钮。

public:
 property System::Windows::Forms::MouseButtons Button { System::Windows::Forms::MouseButtons get(); };

public System.Windows.Forms.MouseButtons Button { get; }

member this.Button : System.Windows.Forms.MouseButtons

Public ReadOnly Property Button As MouseButtons

属性值

MouseButtons

MouseButtons 值之一。

示例

下面的代码示例处理 MouseDown 控件上的 TextBox 事件，以便单击鼠标右键选择控件中的所有文本。 此示例要求具有包含名为 的控件的TextBoxtextBox1窗体。

private void Form1_Load(object sender, EventArgs e)
{
    // This line suppresses the default context menu for the TextBox control. 
    textBox1.ContextMenu = new ContextMenu();
    textBox1.MouseDown += new MouseEventHandler(textBox1_MouseDown);
}

void textBox1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
    if (e.Button == MouseButtons.Right)
    {
        textBox1.Select(0, textBox1.Text.Length);
    }
}

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    TextBox1.ContextMenu = New ContextMenu()
End Sub

Private Sub TextBox1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles TextBox1.MouseDown
    If (e.Button = Windows.Forms.MouseButtons.Right) Then
        TextBox1.Select(0, TextBox1.Text.Length)
    End If
End Sub

另请参阅

• MouseButtons
• Clicks
• Delta
• Location