大家好,我需要一个必填字段验证器来验证我的文本框。这是我的文本框:
<asp:TextBox ID="txtTimeSlotGroupName" runat="server" AutoPostBack="false"
ClientIDMode="Static"></asp:TextBox>
<font color="red">*</font>
<asp:RequiredFieldValidator ID="RequiredFieldValidator_txtTimeSlotGroupName"
runat="server" ControlToValidate="txtTimeSlotGroupName" Display="None"
ErrorMessage="Timeslot Group Required!" ForeColor="Red" InitialValue="0"
ValidationGroup="TimeSlot"></asp:RequiredFieldValidator>
我的按钮:
<asp:Button ID="btnAddTimeSlots" Text="Add Timeslots" CssClass="button"
runat="server" OnClick="btnAddTimeslots_Click" ValidationGroup="TimeSlot"
OnClientClick="javascript:shouldsubmit=true;"/>
我没有看到错误信息。有什么解决方法吗?