I have a Dropdownlist
in my web page as follows.
<asp:DropDownList runat="server" ID="cboNoOfSubjects" AutoPostBack="true" CssClass="textEntry" width="80%" onclick="javascript:shouldsubmit=false;" ValidationGroup="valCourseFees">
<asp:ListItem Value="0">-Select-</asp:ListItem>
<asp:ListItem Value="1">1</asp:ListItem>
<asp:ListItem Value="2">2</asp:ListItem>
<asp:ListItem Value="3">3</asp:ListItem>
<asp:ListItem Value="4">4</asp:ListItem>
<asp:ListItem Value="5">5</asp:ListItem>
</asp:DropDownList>
<font color ="red">*</font>
<asp:RequiredFieldValidator ID="cboNoOfSubjects_RequiredFieldValidator"
runat="server" ErrorMessage="No. of Subjects Required" ForeColor="Red"
Font-Size="0.9em" ControlToValidate="cboNoOfSubjects"
ValidationGroup="valCourseFees" Display="None"></asp:RequiredFieldValidator>
But the validator does not seem to fire. Can anyone help me with this?
For all RequiredFieldValidators, the InitalValue property is important. Add it to yours and it will work.
<asp:RequiredFieldValidator ID="cboNoOfSubjects_RequiredFieldValidator" runat="server"
ErrorMessage="No. of Subjects Required" ForeColor="Red" InitialValue="0"
Font-Size="0.9em" ControlToValidate="cboNoOfSubjects"
ValidationGroup="valCourseFees" Display="None"></asp:RequiredFieldValidator>
One thing more to change, you have to set the property Display="Dynamic" which will display accordingly.