在Asp.net页面中进行Javascript验证 [英] Javascript Validation in Asp.net page

问题描述

<telerik:RadCodeBlock ID="RadCodeBlock2"  runat="server">
    <script type="text/javascript" language="javascript">
        function validate() {

            var CompanyName = /^[A-Za-z0-9]{3,20}$/;
            var txtCompanyName = document.getElementById('<%=radtxtCompanyName.ClientID %>').value;

            if (!CompanyName.test(txtCompanyName)) {
                document.getElementById("<%=radtxtCompanyName.ClientID %>").style.borderColor = "red";

                return false;
            }
            else {
                document.getElementById("<%=radtxthidden.ClientID %>").Text = "validate";
            } }

    </script>
    </telerik:RadCodeBlock>

<telerik:RadButton ID="RadBtnSubmit" Text="Submit"  runat="server" 

            BackColor="#3399FF" ForeColor="White" 

             Height="30px" Width="100px" ButtonType="LinkButton" AutoPostBack="true"

            OnClientClick="return validate()"  önClick ="RadBtnSubmit_Click" />

protected void Page_Load(object sender, EventArgs e)
{
    try
    {
        RadBtnSubmit.Attributes.Add("OnClick", "return validate()");

    }
    catch (Exception ex)
    {

        ErrorLogClass.SendError(ex, "abcd", "PageLoad");
    }
}

如果条件不正确，我无法执行验证onclick函数正在运行，如果执行onclick则条件未经过检查。请在这位朋友中帮帮我。谢谢。

I am not able to perform validation if condition is incorrect onclick function is working and if onclick is executed then condition is not checked.Help me out in this friends.Thanks in advance.

推荐答案

/;
var txtCompanyName = document.getElementById（'<％ = radtxtCompanyName.ClientID ％> '）。值;

if（！CompanyName.test（txtCompanyName））{
document.getElementById（<％ = radtxtCompanyName.ClientID < span class =code-pagedirective>％> ）。style.borderColor =red;

返回false;
}
else {
document.getElementById（<％ = radtxthidden.ClientID ％> ）。Text =validate;
}}

< / script >
< / telerik：RadCodeBlock >

/; var txtCompanyName = document.getElementById('<%=radtxtCompanyName.ClientID %>').value; if (!CompanyName.test(txtCompanyName)) { document.getElementById("<%=radtxtCompanyName.ClientID %>").style.borderColor = "red"; return false; } else { document.getElementById("<%=radtxthidden.ClientID %>").Text = "validate"; } } </script> </telerik:RadCodeBlock>

<telerik:RadButton ID="RadBtnSubmit" Text="Submit"  runat="server" 

            BackColor="#3399FF" ForeColor="White" 

             Height="30px" Width="100px" ButtonType="LinkButton" AutoPostBack="true"

            OnClientClick="return validate()"  önClick ="RadBtnSubmit_Click" />

protected void Page_Load(object sender, EventArgs e)
{
    try
    {
        RadBtnSubmit.Attributes.Add("OnClick", "return validate()");

    }
    catch (Exception ex)
    {

        ErrorLogClass.SendError(ex, "abcd", "PageLoad");
    }
}

如果条件不正确，我无法执行验证onclick函数正在运行，如果执行onclick则条件未经过检查。请在这位朋友中帮帮我。谢谢。

I am not able to perform validation if condition is incorrect onclick function is working and if onclick is executed then condition is not checked.Help me out in this friends.Thanks in advance.

首先从代码中替换这一行：

First replace this line from your code:

RadBtnSubmit.Attributes.Add("OnClick", "return validate()");

另外，在你的javascript验证函数的else块中添加：

Also, in else block of your javascript validation function add:

return true;

试试这个并回复它是否无效。

Try this and reply if it doesn''t work.

这篇关于在Asp.net页面中进行Javascript验证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！