必填字段验证器，JavaScript 确认函数未验证

本文关键字：验证 确认 函数 JavaScript 字段 | 更新日期: 2023-09-27 18:34:22

我正在使用必填字段验证器，它验证文本框，单击提交按钮时，我必须要求确认，并且我使用java脚本的confirm（）函数。问题是，当我在确认框中按确定页面回发并且必填字段验证器在将文本框留空时不会停止页面。在阅读了来自stackoverflow的帖子后，我使用自定义验证器来停止页面，但我不能在这里是代码。

<asp:RequiredFieldValidator ID="RequiredFieldValidator1" ControlToValidate="TextBox1" ValidationGroup="one" runat="server" ErrorMessage="RequiredFieldValidator"></asp:RequiredFieldValidator>
    <asp:TextBox ID="TextBox1" runat="server" ValidationGroup="one"></asp:TextBox>
    <asp:Button ID="Button1" runat="server" Text="Button" 
        OnClientClick="validate();"  ValidationGroup="one" onclick="Button1_Click"/>
    <asp:CustomValidator ID="CustomValidator1" ValidateEmptyText="true" runat="server" ValidationGroup="one" ErrorMessage="CustomValidator"></asp:CustomValidator>
    <script type='text/javascript'>   
           function validate() {
            var cv = document.getElementById('MainContent_CustomValidator1');
            if (cv) {
                cv.isValid = confirm('are you sure want to update record ?');
            }
     }  </script>

必填字段验证器，JavaScript 确认函数未验证

<asp:RequiredFieldValidator ID="RequiredFieldValidator1" ControlToValidate="TextBox1" ValidationGroup="one" runat="server" ErrorMessage="RequiredFieldValidator"></asp:RequiredFieldValidator>
    <asp:TextBox ID="TextBox1" runat="server" ValidationGroup="one"></asp:TextBox>
    <asp:Button ID="Button1" runat="server" Text="Button" 
        OnClientClick="return validate();"  ValidationGroup="one" onclick="Button1_Click"/>
    <asp:CustomValidator ID="CustomValidator1" ValidateEmptyText="true" runat="server" ValidationGroup="one" ErrorMessage="CustomValidator" ClientValidationFunction="TextBox1Client"></asp:CustomValidator>

 <script type='text/javascript'>   
        function validate() {
          if(confirm('are you sure want to update record ?')){
          return true;
          }
          else
          {
          return false;
          }
       }
//you need to add a custom validot client function also  
       function TextBox1Client(sender, args) {
       //write your custom code here
        args.IsValid = false;
        //OR
        args.IsValid =true;
       }
    </script>

尝试使用Page_ClientValidate

 <asp:Button ID="Button1" runat="server" Text="Button" 
        OnClientClick="Javascript:if(Page_ClientValidate('one')){return validate();}"  ValidationGroup="one" onclick="Button1_Click"/>

像这样更正你的代码

if(confirm('are you sure want to update record ?')==false){
  return false;
}

谢谢。

JavaScript 区分大小写，试试这个：

<asp:RequiredFieldValidator ID="RequiredFieldValidator1" ControlToValidate="TextBox1" ValidationGroup="one" runat="server" ErrorMessage="RequiredFieldValidator"></asp:RequiredFieldValidator>
<asp:TextBox ID="TextBox1" runat="server" ValidationGroup="one"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Button" 
    OnClientClick="validate();"  ValidationGroup="one" onclick="Button1_Click"/>
<asp:CustomValidator ID="CustomValidator1" ValidateEmptyText="true" runat="server" ValidationGroup="one" ErrorMessage="CustomValidator"></asp:CustomValidator>
<script type='text/javascript'>   
       function validate() {
        var cv = document.getElementById('MainContent_CustomValidator1');
        if (cv) {
            cv.IsValid = confirm('Are you sure want to update record?');
        }
 }  </script>

您没有将 IsEffective 中的 i 大写。

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