如何通过访问具有客户端ID的文本框来验证动态网格视图中的文本框？ [英] How to Validate the textbox inside the dynamic gridview by accessing the textbox with client ID ?

问题描述

这是gridview中的代码，我在Add按钮上动态生成行。 
 
 
 <   ItemTemplate  >  
 <   asp：TextBox     ID   =  txtweight_fact    runat   =  server   高度  =  41px   宽度  =  42px  
   
                        < span class =code-attribute>                                                      < span class =code-attribute>             OnKeyPress   =  return isNumberKey（this，event）;      text   =  0.00  
   
                                                                                           MaxLength   =  4   >  <   / asp：TextBox  >  
 <   br     /  >  
 <   asp：RequiredFieldValidator     ID   =  RequiredFieldValidator4    runat   =  server   < span class =code-attribute>显示  = 动态  
   
                                                < span class =code-attribute>                                           ControlToValidate   =  txtweight_fact    ErrorMessage   =  *    ValidationGroup   =  valgrp_func >  <   / asp：RequiredFieldValidator  >  
 
 <  < span class =code-leadattribute> / ItemTemplate  >  
 
添加按钮的代码
 <   FooterTemplate  >  
 < span class =code-keyword><   center  >  
 <   asp：按钮    ID   =  Btn添加    runat   =  server    OnClick   =  ButtonAdd_Click    ValidationGroup   =  valgrp_func  
   
                                                                  文字  = 添加    /  >  <   / center  >  
 <   / FooterTemplate  >  

我想用Idtxtweight_fact验证文本框但无法使用客户ID进行验证。

请建议解决方案。

问候

Ni！E $ #UPDATED

解决方案

#UPDATED

从这个例子改编：

 <％@     Page    语言  =  C＃     AutoEventWireup   =  true    CodeFile   =  Default2.aspx.cs   继承  =   Default2   ％>  
 <  ！DOCTYPE     html     PUBLIC     -  // W3C // DTD     XHTML     1.0     Transitional // EN   http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd >  
 <   html     xmlns   =  http： //www.w3.org/1999/xhtml\">  
 <   head     id   =  Head1    runat   = 服务器 > ;  
 <   title  > ;  <   / title  >  
 <   script       type   =  text / javascript >  
  function  validateNumberRange（sender）{
  var  e = sender; 
  var  textboxVal = e.value; 
  if （textboxVal> =  0 。 00 && textboxVal< =  1 。 00 ）{
 返回  true ; 
} 
  else  
 alert（' 请输入介于0.00到1.00之间的数字）; 
  return   false ; 
} 
 <   /  脚本 >  
 <   / head  >  
 <   body  >  
 <  表单    id   =   form1    runat  < span class =code-keyword> =  server >  
 
 <   asp：GridView     ID   =  GridView1 < span class =code-attribute>   runat   =  server >  
 <  列 >  
 <   asp：TemplateField     HeaderText   = 文本框列 >  
 <   ItemTemplate  >  
 <   asp：TextBox     ID   =  textbox1    runat   =  server    onkeyup   =  return validateNumberRange（this）;  /  >  
 <   / ItemTemplate  >  
 <   / asp：TemplateField  >  
 <   /列 >  
 <   / asp：GridView  >  
 
 <   / form  >  
 <   / body  >  
 <   / html  >  

< blockquote>在这里参考..



Numeric-validation-for-TextBox-inside-GridView-using-JavaScript-or-jQuery-in-ASPNe

文本框只接受号码

This is the code inside gridview and am dynamically generating row on Add button .


<ItemTemplate>
                                        <asp:TextBox ID="txtweight_fact" runat="server" Height="41px" Width="42px"

                                            OnKeyPress="return isNumberKey(this,event);"  text="0.00"

                                            MaxLength="4" ></asp:TextBox>
                                        <br />
                                        <asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" Display="Dynamic"

                                            ControlToValidate="txtweight_fact" ErrorMessage="*" ValidationGroup="valgrp_func"></asp:RequiredFieldValidator>

                                    </ItemTemplate>

The Code for add button
 <FooterTemplate>
                                    <center>
                                           <asp:Button ID="BtnAdd" runat="server" OnClick="ButtonAdd_Click" ValidationGroup="valgrp_func"

                                Text="Add" /></center>
                                    </FooterTemplate>

I want to validate the textbox with Id "txtweight_fact" but not able to validate using the client ID .
Please suggest solution.
Regards
Ni!E$#UPDATED

解决方案

#UPDATED

Adapt from this example:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<script  type="text/javascript">
    function validateNumberRange(sender) {
        var e = sender;
        var textboxVal = e.value;
        if (textboxVal >= 0.00 && textboxVal <= 1.00) {
            return true;
        }
        else
            alert('Please enter a number between 0.00 to 1.00');
        return false;
    }
</script>
</head>
<body>
    <form id="form1" runat="server">

    <asp:GridView ID="GridView1" runat="server">
        <Columns>
            <asp:TemplateField HeaderText="Text Box Column">
                <ItemTemplate>
                    <asp:TextBox ID="textbox1" runat="server" onkeyup="return validateNumberRange(this);"/>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>

    </form>
</body>
</html>

refer here..

Numeric-validation-for-TextBox-inside-GridView-using-JavaScript-or-jQuery-in-ASPNe
Text-box-to-accept-only-number

这篇关于如何通过访问具有客户端ID的文本框来验证动态网格视图中的文本框？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！