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JQuery to enable disable all asp.net controls placed inside div based on dropdownlist selected value

Introduction:  In this article I am going to explain how to enable and disable all asp.net or HTML controls  like textbox, dropdownlist, radiobutton, radiobuttonlist, checkbox, checkboxlist, multiline textbox (textarea) and button placed inside div tag according to dropdownlist selection using jquery as shown in demo image.


Description: While working on asp.net project I encountered the following requirement:
  • By default all the controls placed on the page should be disabled
  • Enable all the controls placed on the page only when applicant has either partially or fully submitted the application fees otherwise disable all the controls so that applicant can’t apply for the job.

Above requirement can be implemented easily by server side coding by getting the dropdownlist selected value and based on that set the enable property of all the controls to true or false. But to make this process fast and to minimize the code I decided to implement it at client side using jquery and I am also going to share it with all so that you can implement it in your project if required. 

The concept is very simple. Place all the controls inside a div tag ("myDiv" in his example) and using jquery find all the controls contained in the div tag and then enable or disable them based on dropdownlist selected value.

Implementation: Let’s check the concept by implementing it.

HTML Source Code:

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Enable Disable all form controls placed inside div based on dropdownlist selected value</title>
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
    <script type="text/javascript">
        $(document).ready(function () {
            EnableDisableControls();
        });
        function EnableDisableControls() {
            var selectedValue = $('#<%=ddlEligible.ClientID %>').val();
            if (selectedValue == 1 || selectedValue ==3) {
                $("#myDiv").find("input, select, button, textarea").prop("disabled", false);
            }
            else {               
                $("#myDiv").find("input, select, button, textarea").prop("disabled", true);
            }
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
        <div>          
            <fieldset style="width: 370px">
                <legend>
            Application Fee
            <asp:DropDownList ID="ddlEligible" runat="server" onchange="EnableDisableControls();">
                <asp:ListItem Value="0" Text="-Select-"></asp:ListItem>
                <asp:ListItem Value="1" Text="Submitted"></asp:ListItem>
                <asp:ListItem Value="2" Text="Not Submitted"></asp:ListItem>
                <asp:ListItem Value="3" Text="Partially Submitted"></asp:ListItem>
            </asp:DropDownList>
                         </legend>
                <div id="myDiv">

                    <table cellspacing="2">
                        <tr>
                            <td>Full Name </td>
                            <td>
                                <asp:TextBox ID="txtFullName" runat="server"></asp:TextBox></td>
                        </tr>
                        <tr>
                            <td>Email </td>
                            <td>
                                <asp:TextBox ID="txtEmail" runat="server"></asp:TextBox></td>
                        </tr>
                        <tr>
                            <td>Gender </td>
                            <td>
                                <asp:RadioButton ID="rbMale" Text="Male" runat="server" GroupName="gender" />
                                <asp:RadioButton ID="rbFemale" Text="Female" runat="server" GroupName="gender" /></td>
                        </tr>
                        <tr>
                            <td>Nationality </td>
                            <td>
                                <asp:DropDownList ID="ddlNationality" runat="server" Width="173px">
                                    <asp:ListItem Text="-Select-" Value="0"></asp:ListItem>
                                    <asp:ListItem Text="Indian" Value="1"></asp:ListItem>
                                    <asp:ListItem Text="Others" Value="2"></asp:ListItem>
                                </asp:DropDownList></td>
                        </tr>
                        <tr>
                            <td>Skills </td>
                            <td>
                                <asp:CheckBoxList ID="cblSkills" runat="server" RepeatColumns="2">
                                    <asp:ListItem Text="Asp.Net" Value="1"></asp:ListItem>
                                    <asp:ListItem Text="MVC" Value="2"></asp:ListItem>
                                    <asp:ListItem Text="jQuery" Value="3"></asp:ListItem>
                                    <asp:ListItem Text="Sql Server" Value="4"></asp:ListItem>
                                </asp:CheckBoxList></td>
                        </tr>
                        <tr>
                            <td>Post applying for </td>
                            <td>
                                <asp:RadioButtonList ID="rblApplyingFor" runat="server" RepeatColumns="2">
                                    <asp:ListItem Text="Trainee" Value="1"></asp:ListItem>
                                    <asp:ListItem Text="Team Leader" Value="2"></asp:ListItem>
                                    <asp:ListItem Text="Software Engineer" Value="3"></asp:ListItem>
                                    <asp:ListItem Text="Project manager" Value="4"></asp:ListItem>
                                </asp:RadioButtonList></td>
                        </tr>
                        <tr>
                            <td>Paste your resume  </td>
                            <td>
                                <asp:TextBox ID="txtResume" runat="server" Columns="34" Rows="4" TextMode="MultiLine"></asp:TextBox></td>
                        </tr>
                        <tr>
                            <td></td>
                            <td>
                                <asp:Button ID="btnSubmit" runat="server" Text="Submit" />
                            </td>
                        </tr>
                    </table>
                </div>
            </fieldset>
        </div>
    </form>
</body>
</html>

Now over to you:
" I hope you have got the way to enable disable all asp.net or HTML controls placed inside div based on dropdownlist selected value  and If you like my work; you can appreciate by leaving your comments, hitting Facebook like button, following on Google+, Twitter, Linked in and Pinterest, stumbling my posts on stumble upon and subscribing for receiving free updates directly to your inbox . Stay tuned and stay connected for more technical updates." 
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