ColorDialog.AllowFullOpen 属性

public:
 virtual property bool AllowFullOpen { bool get(); void set(bool value); };

public virtual bool AllowFullOpen { get; set; }

member this.AllowFullOpen : bool with get, set

Public Overridable Property AllowFullOpen As Boolean

属性值

true 如果用户可以定义自定义颜色，则为否则，为 false. 默认值为 true。

示例

下面的示例演示如何创建新 ColorDialog项。 此示例要求从现有窗体中调用该方法，该窗体中具有一 TextBox 个并 Button 放在该窗体中。

private:
   void button1_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      ColorDialog^ MyDialog = gcnew ColorDialog;
      // Keeps the user from selecting a custom color.
      MyDialog->AllowFullOpen = false;
      // Allows the user to get help. (The default is false.)
      MyDialog->ShowHelp = true;
      // Sets the initial color select to the current text color.
      MyDialog->Color = textBox1->ForeColor;
      
      // Update the text box color if the user clicks OK 
      if ( MyDialog->ShowDialog() == ::System::Windows::Forms::DialogResult::OK )
      {
         textBox1->ForeColor = MyDialog->Color;
      }
   }

private void button1_Click(object sender, System.EventArgs e)
 {
    ColorDialog MyDialog = new ColorDialog();
    // Keeps the user from selecting a custom color.
    MyDialog.AllowFullOpen = false ;
    // Allows the user to get help. (The default is false.)
    MyDialog.ShowHelp = true ;
    // Sets the initial color select to the current text color.
    MyDialog.Color = textBox1.ForeColor ;
    
    // Update the text box color if the user clicks OK 
    if (MyDialog.ShowDialog() == DialogResult.OK)
        textBox1.ForeColor =  MyDialog.Color;
 }

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    Dim MyDialog As New ColorDialog()
    ' Keeps the user from selecting a custom color.
    MyDialog.AllowFullOpen = False
    ' Allows the user to get help. (The default is false.)
    MyDialog.ShowHelp = True
    ' Sets the initial color select to the current text color,
    MyDialog.Color = TextBox1.ForeColor

    ' Update the text box color if the user clicks OK 
    If (MyDialog.ShowDialog() = DialogResult.OK) Then
        TextBox1.ForeColor = MyDialog.Color
    End If
End Sub

注解

设置为 <a0/> 时，对话框中的关联按钮处于禁用状态，用户无法访问对话框中的自定义颜色控件。

另请参阅

• FullOpen