asp.net的正则表达式验证器失败 [英] regular expression validator of asp.net fails

问题描述

我创建了2页登录并注册了..我在标志页面上使用了正则表达式验证器，用于名字，中间名和姓。如果我输入数字，它会给我错误。但是当我点击注册按钮时，即使输入数字后我的记录也会被插入。请帮助

I have created 2pages login and sign up.. I have used regular expression validator on sign page for first name,middle name and surname..It is giving me error if i enter digits. but when i click on sign up button my record gets inserted even after entering digits. please help

推荐答案

根据您的正则表达式验证，如果您想在ValidationExpression中添加0-9中的SurName文本框中的数字，则文本框不接受数字\d。



在按钮点击功能背后的代码中添加一个条件

if（Page.IsValid）然后只生成数据库调用将文本值插入数据库。

As per your regular expression validation the textbox doesn't accepts digits, if you want to have digits in SurName textbox in the ValidationExpression add 0-9 or \d.

In the code behind on the button click function add a condition
if(Page.IsValid) then only make DB call to insert the text values into database.

您的代码应如下所示



SignUp.aspx

Your code should look like this

SignUp.aspx

<asp:TextBox ID="txtSur" runat="server"></asp:TextBox>
    <asp:RegularExpressionValidator ID="RegularExpressionValidator3" runat="server" ErrorMessage="Invalid Surname" Enabled="True" ControlToValidate="txtSur" ForeColor="Red" ValidationExpression="\b[A-Za-z0-9]+\b" Display="Dynamic" SetFocusOnError="True">
    <asp:Button ID="SignUpButton"

        runat="server" Text="Sign Up" onclick="SignUpButton_Click" />

在SignUp.aspx中.cs

In SignUp.aspx.cs

protected void SignUpButton_Click(object sender, EventArgs e)
        {
            if (Page.IsValid)
            {
                //Make a DB call and insert the text values into the DB
            }
        }

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