Empty textbox validation on button click

Vignesh Kumar

12y4.8k.NET

Hi,

I am using the below piece of javascript for expty textbox validation on button click. It worked when I placed the script inside head tag. And now it doesn't work as I have placed inside asp:content. Can anyone correct me.

7 Replies

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Sanjay Kumar12y ago
Accepted answer
Hi Vignesh

try this code

<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
<script type="text/javascript">
function validate() {
if (document.getElementById("<%=txtSearch.ClientID %>").value != "") {
return true;
}
alert('Please enter user details to search!');
return false;
}
script>
asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<asp:TextBox ID="txtSearch" runat="server" Height="20px" Width="150px" />
<asp:ImageButton ID="btnSearchUser" ClientIDMode="Static" ImageUrl="~/SearchButton.png" runat="server" Width="50px" Height="25px" OnClientClick ="javascript:validate()" />
asp:Content>
Vignesh Kumar12y ago
Thanks sanjay it worked and sanjeeb for your help.
Vignesh Kumar12y ago
Sanjeeb,

Still the same problem.
Sanjeeb Lenka12y ago
hi,

please share your full page code;
Vignesh Kumar12y ago
Sanjeeb,

I placed the script in second content place holder only and still I have problem.

<%@ Page Language="C#" MasterPageFile="~/Menu.Master" AutoEventWireup="true" CodeBehind="Profile.aspx.cs"
    Inherits="UI.Profile" %>

    User Profile Administration











                                    Width="880px" Text="User Profile Administration" Font-Bold="True" ForeColor="Black">






                                            Font-Size="Medium" Font-Bold="true">

                                            Style="top: 8px; position: relative; left: 0px; height: 23px; width: 35px;" OnClick="btnSearchUser_Click"
                        OnClientClick="return validate()" />





                                            Font-Names="Helvetica" Font-Size="Small" DataKeyNames="User_Id" AllowPaging="True"
                        CellPadding="4" OnPageIndexChanging="ResultGridView_PageIndexChanging" OnRowEditing="ResultGridView_RowEditing"
                        OnRowCancelingEdit="ResultGridView_RowCancelingEdit" PageSize="18" ForeColor="#333333"
                        GridLines="None">




                                                                            ToolTip="Edit" />

















































                                                                            Text="Update" ForeColor="#333333">
                                                                            Text="Cancel" ForeColor="#333333">


                                                                            CommandName="AddNew" Text="Add New" ForeColor="#333333">




                                                                            ToolTip="Delete" OnClientClick="return confirm('Are you sure want to Delete?');" />
Sanjay Kumar12y ago
Hi

http://www.aspdotnet-suresh.com/2010/10/javascript-validations-to-validate-form.html

http://deepak-sharma.net/2013/08/11/validationsummary-control-in-asp-net/
Sanjeeb Lenka12y ago
put it in your second content placeholde.