Validate Dropdownlist using Require filed validator control in asp.net OR can we validate Dropdownlist by Requirefield validator - Free Asp.Net,MVC,AngularJs,Jquery,Javascript,Sql Server,WCF,Entity framework snippets and tutorial

Validate Dropdownlist using Require filed validator control in asp.net OR can we validate Dropdownlist by Requirefield validator

Introduction: In this article today I will explain how we can validate Dropdownlist using Require filed validator control in asp.net
Validate Dropdownlist using Require filed validator control

Description:
We can validate the Dropdownlist using Requirefield validator via set the InitialValue property of Requirefield validator control.

Example:
Add a webform to project. Drag and drop the Dropdownlist control from toolbox to webform.
<center>
    <fieldset style="width:30%;height:150px">
    <legend>Validate Dropdownlist using Requirefield validator control</legend>
       Please Select Country : <asp:DropDownList ID="ddlcountry" runat="server" Width="20%">
        <asp:ListItem Value="0">--Select--</asp:ListItem>
 <asp:ListItem Value="1">India</asp:ListItem>
 <asp:ListItem Value="2">China</asp:ListItem>
 <asp:ListItem Value="3">USA</asp:ListItem>
 <asp:ListItem Value="4">Russia</asp:ListItem>
 <asp:ListItem Value="5">Cuba</asp:ListItem>
 <asp:ListItem Value="6">Iran</asp:ListItem>
        </asp:DropDownList>
                <asp:RequiredFieldValidator ID="rfvcountry" ControlToValidate="ddlcountry" InitialValue="0" runat="server" ErrorMessage="Please select Country"></asp:RequiredFieldValidator>
        </fieldset>
        </center>
Build and run the project.

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