文本框仅允许日期为DD/MM/YYYY的日期 [英] Text box allow only date in DD/MM/YYYY fromate

问题描述

尊敬的会员，
我想检查文本框的验证，即文本框在c Sharp.仅允许DD/MM/YYYY格式.我得到了很多代码，但是这些代码无法正常工作.

请发布您的代码

谢谢你
代码项目成员

Dear Member,
i want to check validation on text box that text box allow only DD/MM/YYYY format in c sharp.i get many code but these code not working properly.

please post your code

thak you
member of code project

推荐答案

尝试此代码

try this code

<asp:textbox runat="server" id="TextBox1" xmlns:asp="#unknown" />
<asp:customvalidator runat="server" controltovalidate="TextBox1" errormessage="Date was in incorrect format" onservervalidate="CustomValidator1_ServerValidate" xmlns:asp="#unknown" />

背后的代码

Code Behind

protected void CustomValidator1_ServerValidate(object sender, ServerValidateEventArgs e)
{
    DateTime d;
    e.IsValid = DateTime.TryParseExact(e.Value, "dd/MM/yyyy", CultureInfo.InvariantCulture, DateTimeStyles.None, out d);
}

/*If you want to allow other formats */

DateTime.TryParseExact(e.Value, new[] { "dd/MM/yyyy", "yyyy-MM-dd" }, CultureInfo.InvarinatCulture, DateTimeStyles.None, out d);

其他解决方案----------

Other Solution----------

public void Button1_Click(object sender, EventArgs e)
{
        DateTime Test;
        if (DateTime.TryParseExact(TextBox1.Text, "MM/dd/yyyy", null, DateTimeStyles.None, out Test) == true)
            Response.Write("Date is Valid");
        else
            Response.Write("Invalid Date");
}

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