多个文本框asp.net验证 [英] asp.net validation for multiple text boxes

问题描述

我有两个ASP：文本框。用户需要在-至少一个文本框输入值。
请让我知道如何验证，以确保数据的箱子用于至少一个输​​入。
谢谢你。

I have two asp:TextBox. User needs to enter value in at-least one of the text boxes. Please let me know how to validate to make sure data is entered in atleast one of the boxes. Thanks.

推荐答案

您可以使用的CustomValidator来验证您的文本框。

You can use CustomValidator to validate your TextBoxes.

protected void ValidateBoxes(object sender, ServerValidateEventArgs e)
{
    if (TextBox1.Text == "" && TextBox2.Text == "")
        e.IsValid = false;
    else
        e.IsValid = true;
}

您也应该在.aspx页面中指定您的验证。

You should also specify your validator at .aspx page.

<asp:CustomValidator ID="Validator1" runat="server" ControlToValidate="TextBox1"
                     OnServerValidate="ValidateBoxes" 
                     ErrorMessage="• Enter Text" ValidationGroup="check"
                     Display="None">
</asp:CustomValidator>

记住，触发回发都的CustomValidator和按钮的ValidationGroup属性应该是一样的。所以，你的按钮应该有一些东西像下面。

Remember that the ValidationGroup property of both CustomValidator and the Button that triggers post back should be same. So, your button should be some thing like below.

<asp:Button ID="Button1" runat="server" Text="Hey"
            ValidationGroup="check"
            OnClick="Operation"> 
</asp:Button>

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