如何在C#中创建文本框Keydown事件 [英] How to create the Text box Keydown event in C#

问题描述

请解释Windows应用程序中的Textbox Keydown事件.

例如，如果我单击Enter键，它将打开新的UI.

Please explain the Textbox Keydown event in windows application.

For example if i click the enter key it will open the new UI.

推荐答案

在基于Web的应用程序中? 您需要使用Javascript.用JavaScript编写函数，并在文本框的keypress事件上调用它.这是示例.

.aspx页面

In webbased application ?
You need to take help of Javascript. write a function in javascript and call it on keypress event of textbox. here is example.

.aspx page

<asp:textbox id="txtsubmit" runat="server" onkeypress="return callME()" xmlns:asp="#unknown" />

Javascript函数.

Javascript function.

function CalllME()
{
  if(event.keyCode == 13) //enter Keycode is 13
  {
     window.open(//Open new UI);
     return false;
  }

}

为TextBox的KeyDown事件添加处理程序. (这假定您将AcceptsReturn属性设置为False).然后在KeyDown事件处理程序中输入以下代码:

Add a handler for your TextBox''s KeyDown event. (This assumes you set the AcceptsReturn property to False). Then in your KeyDown eventhandler, have code such as:

if (e.KeyCode = Keys.Enter)
          window.open();//code to open your UI

另请参阅此链接:

http://www.dotnetperls.com/keycode [

Also refer this link:

http://www.dotnetperls.com/keycode[^]

有文本框Keydown事件.用于检查是否按下回车键.

There is event of Keydown for textbox. use to check if enter is pressed.

Private void txtbrowse_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles btnBrowse.KeyDown
{
     if (e.KeyData = Keys.Enter)
     {
          //open new UI
     }
}

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