ASP.NET 让控件获取焦点及设置输入法全角半角或无效

让控件获取焦点及设置输入法全角半角或无效

做开发的过程中,常遇到一些页面要求光标的默认位置固定在某控件上
看起来好像很难,其实实现方法很简单.
JavaScript里面有现成的设置焦点的方法
可以写一个简单的函数命名为setFocus,然后在Page_Load里调用就可以了
比如需要设置焦点的是mytextbox控件
那么只要Page_Load写上Call setFocus(Me.mytextbox)就可以了
下面是VB.NET代码实例.C#的代码也差不多...

   Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
       Call setFocus(Me.txt_code)
       End Sub

 

   Private Sub setFocus(ByVal ctrl As Control)
       Dim script As String
       script = "<script language='JavaScript'>" & _
                "        document.getElementById('" & ctrl.ClientID & "').focus();" & _
                "</script>"
       RegisterStartupScript("setfocus", script)
   End Sub

下面是输入法设置,更简单:

      Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
       If Not Page.IsPostBack Then
           'IME半角設定
           setIME(Me.Page, Me.txt_code, 1)
           setIME(Me.Page, Me.txt_date, 1)
       End If
       End Sub

 

   Public Sub setIME(ByRef pgTemp As Page, _
                     ByRef ctrTemp As WebControl, _
                     ByVal intMode As Integer)
       Select Case intMode
           Case 0 'IME無効
               ctrTemp.Attributes.Add("style", "ime-mode:disabled")
           Case 1 'IME半角
               ctrTemp.Attributes.Add("style", "ime-mode:inactive")
           Case 2 'IME全角
               ctrTemp.Attributes.Add("style", "ime-mode:active")
           Case 3 'IME自動
               ctrTemp.Attributes.Add("style", "ime-mode:auto")
           Case 4 'IME無効且右对齐
               ctrTemp.Attributes.Add("style", "ime-mode:disabled;text-align:right")
           Case 5 'IME半角且右对齐
               ctrTemp.Attributes.Add("style", "ime-mode:inactive;text-align:right")
       End Select
   End Sub