Question

我需要验证人的年龄，并且该字段应该是强制填写。此外，范围应该是2-3位。仅一个验证工作，但数据也存储，我不想。

<asp:TextBox ID="txtAge" value="number" runat ="server" OnTextChanged="TextBox1_TextChanged"></asp:TextBox>
<asp:RangeValidator ID="RangeValidator2"
ControlToValidate="txtAge"
MinimumValue="18"
MaximumValue="80"
Type="INTEGER"
EnableClientScript="false"
Text="The date must be between 18 and 80!"
runat="server" />

请帮我解决这个问题。

Answer 1

例如：

<asp:RangeValidator ID="RangeValidatorAge" runat="server"
ErrorMessage="Age must be between 1 & 100"
MinimumValue="1" MaximumValue="100"
ControlToValidate="txtAge" Type="Integer"
ForeColor="Red" Display="Dynamic">
</asp:RangeValidator>
<asp:RequiredFieldValidator ID="RequiredFieldValidatorAge"
runat="server" ErrorMessage="Age is required"
ControlToValidate="txtAge" ForeColor="Red"
Display="Dynamic" >
</asp:RequiredFieldValidator>

Answer 2

因此您要禁用客户端验证，因此您使用了EnableClientScript="false"。好的，但是你必须通过Page.Validate()强制验证服务器端：

protected void TextBox1_TextChanged(object sender, EventArgs e)
{
    Page.Validate();
    if (Page.IsValid)
    {
        // save your data
    }
}

Answer 3

使用ValidationGroup

<asp:TextBox ID="txtAge" value="number" runat ="server" OnTextChanged="TextBox1_TextChanged" ValidationGroup="ag"></asp:TextBox>
<asp:RangeValidator ID="RangeValidator2"
ControlToValidate="txtAge"
MinimumValue="18"
MaximumValue="80"
Type="INTEGER"
EnableClientScript="false"
Text="The date must be between 18 and 80!"
runat="server" ValidationGroup="ag" />

<asp:RequiredFieldValidator ID="RequiredFieldValidatorAge"
runat="server" ErrorMessage="Age is required"
ControlToValidate="txtAge" ForeColor="Red"
Display="Dynamic"  ValidationGroup="ag">
</asp:RequiredFieldValidator>

如何在c＃中的asp.net中添加多个验证

3 个答案: