TextBox.AcceptsReturn 属性

定义

命名空间:

System.Windows.Forms

程序集:

System.Windows.Forms.dll

获取或设置一个值，该值指示在多行 TextBox 控件中按 Enter 键时，是在控件中创建一行新文本还是激活窗体的默认按钮。

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

public bool AcceptsReturn { get; set; }

member this.AcceptsReturn : bool with get, set

Public Property AcceptsReturn As Boolean

属性值

Boolean

如果按 Enter 键时在多行版本的控件中创建一行新文本，则为 true；如果按 Enter 键时激活窗体的默认按钮，则为 false。 默认值为 false。

示例

下面的代码示例使用垂直滚动条创建多行 TextBox 控件。 此示例使用AcceptsTabAcceptsReturn和WordWrap属性使多行文本框控件可用于创建文本文档。

public:
   void CreateMyMultilineTextBox()
   {
      // Create an instance of a TextBox control.
      TextBox^ textBox1 = gcnew TextBox;
      
      // Set the Multiline property to true.
      textBox1->Multiline = true;
      // Add vertical scroll bars to the TextBox control.
      textBox1->ScrollBars = ScrollBars::Vertical;
      // Allow the RETURN key to be entered in the TextBox control.
      textBox1->AcceptsReturn = true;
      // Allow the TAB key to be entered in the TextBox control.
      textBox1->AcceptsTab = true;
      // Set WordWrap to true to allow text to wrap to the next line.
      textBox1->WordWrap = true;
      // Set the default text of the control.
      textBox1->Text = "Welcome!";
   }

public void CreateMyMultilineTextBox()
 {
    // Create an instance of a TextBox control.
    TextBox textBox1 = new TextBox();
       
    // Set the Multiline property to true.
    textBox1.Multiline = true;
    // Add vertical scroll bars to the TextBox control.
    textBox1.ScrollBars = ScrollBars.Vertical;
    // Allow the RETURN key to be entered in the TextBox control.
    textBox1.AcceptsReturn = true;
    // Allow the TAB key to be entered in the TextBox control.
    textBox1.AcceptsTab = true;
    // Set WordWrap to true to allow text to wrap to the next line.
    textBox1.WordWrap = true;
    // Set the default text of the control.
    textBox1.Text = "Welcome!";
 }

Public Sub CreateMyMultilineTextBox()
    ' Create an instance of a TextBox control.
    Dim textBox1 As New TextBox()
    
    ' Set the Multiline property to true.
    textBox1.Multiline = True
    ' Add vertical scroll bars to the TextBox control.
    textBox1.ScrollBars = ScrollBars.Vertical
    ' Allow the RETURN key to be entered in the TextBox control.
    textBox1.AcceptsReturn = True
    ' Allow the TAB key to be entered in the TextBox control.
    textBox1.AcceptsTab = True
    ' Set WordWrap to true to allow text to wrap to the next line.
    textBox1.WordWrap = True
    ' Set the default text of the control.
    textBox1.Text = "Welcome!"
End Sub

注解

如果此属性的值是 false，用户必须按 Ctrl+Enter 才能在多行 TextBox 控件中创建新行。 如果窗体没有默认按钮，则无论此属性的值如何，ENTER 键都将始终在控件中创建新文本行。