请帮忙 ！！ RequiredFieldValidator不起作用 [英] Please Help !! RequiredFieldValidator is not working

问题描述

< textarea cols =80id = editor1name =editor1rows =10runat =serverclientidmode =Static style =width：900px;> < / textarea> < asp：requiredfieldvalidator id =requiredfieldvalidator3runat =server controltovalidate =editor1display =无 errormessage =输入模板文本setfocusonerror =true validationgroup =A> < asp ：validatorcalloutextender id =requiredfieldvalidator3_validatorcalloutextender runat =servertargetcontrolid =requiredfieldvalidator3>

< asp：Button ID =btnSaverunat =serverText =SaveOnClick =btnSave_Click OnLoad =btnSave_LoadValidationGroup =A/>

解决方案

尝试将ValidationGroup属性添加到TextArea控件：



......这样的事情：

 <   textarea     cols   =  80    id   =  editor1   名称  =  editor1   行  =  10      runat   =  server    validationgroup   =      clientidmode   = 静态   样式  =  width：900px; >  <   / textarea  >  

删除属性display nonefield of requiredfieldvalidator

为requiredfieldvalidator提供初始值

假设初始值为0 assign这个值是你的textbo x在设计时或加载时间，当用户将此值更改为10并再次插入0然后它将工作



它更好使用javascript

 <   script     type   =  text / javascript >  
 function valid（）{
 var v_type = document.getElementById（<％ = Voucher_Type.ClientID ％> ）。value; 
 
 // var sales = document.getElementById（editor1）。value; 
 if（v_type ==--Select--）
 {
 alert（填写所有信息）; 
返回false; 
} 
 else {
 
返回true; 
 
} 
 
} 
 <   / script  >  

< asp：button id =btnSaverunat =servertext =Saveonclick =btnSave_Clickonclientclick =return valid（）;的xmlns：ASP = ＃未知 >

<textarea cols="80" id="editor1" name="editor1" rows="10" runat="server" clientidmode="Static" style="width: 900px;"> </textarea> <asp:requiredfieldvalidator id="requiredfieldvalidator3" runat="server" controltovalidate="editor1" display="none" errormessage="enter template text" setfocusonerror="true" validationgroup="A"> <asp:validatorcalloutextender id="requiredfieldvalidator3_validatorcalloutextender" runat="server" targetcontrolid="requiredfieldvalidator3">

<asp:Button ID="btnSave" runat="server" Text="Save" OnClick="btnSave_Click" OnLoad="btnSave_Load" ValidationGroup="A" />

解决方案

Try adding the ValidationGroup attribute to your TextArea control:

... something like this:

<textarea cols="80" id="editor1" name="editor1" rows="10"  runat="server" validationgroup="A" clientidmode="Static" style="width: 900px;"></textarea>

remove the property display none of requiredfieldvalidator
provide initial value to requiredfieldvalidator

suppose initial value is 0 assign this value to ur textbox at design time or load time when user change this value to 10 and again insert 0 then it will work

its better u use javascript

<script type="text/javascript">
       function valid() {
           var v_type = document.getElementById("<%=Voucher_Type.ClientID%>").value;
          
           //var sales = document.getElementById("editor1").value;
          if (v_type == "--Select--" )
           {
               alert("fill all information");
               return false;
           }
           else {
              
                   return true;              

           }
         
       }
   </script>

<asp:button id="btnSave" runat="server" text="Save" onclick="btnSave_Click" onclientclick="return valid();" xmlns:asp="#unknown">

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