How to avoid flickering page while using JQuery Searchable Dropdown list in ASP.NET

Gani_tpt 1,746 Reputation points

I am using ASP.NET dropdown controls and using JQuery for Searchable dropdown list.

When i click the dropdown it's allowing to enter text in the dropdown list.

But, after selecting the text, the whole page got flickering. I feel it is not good for end user.

How to maintain ASP.NET searchable dropdown without JQUERY or without flickering the page.

below is the code.

<link href=""  
        rel="stylesheet" type="text/css" />  
    <script type="text/javascript" src=""></script>  
    <script type="text/javascript" src=""></script>  
    <script src="Scripts/jquery.searchabledropdown-1.0.8.min.js" type="text/javascript"></script>  
    <script type="text/javascript">  
        $(document).ready(function () {  
                maxListSize: 200, // if list size are less than maxListSize, show them all  
                maxMultiMatch: 300, // how many matching entries should be displayed  
                exactMatch: false, // Exact matching on search  
                wildcards: true, // Support for wildcard characters (*, ?)  
                ignoreCase: true, // Ignore case sensitivity  
                latency: 200, // how many millis to wait until starting search  
                warnMultiMatch: 'top {0} matches ...',  
                warnNoMatch: 'no matches ...',  
                zIndex: '-1'  


 <asp:DropDownList ID="ddlEmpNo" runat="server"   
                            AutoPostBack="true" >  
                            <asp:ListItem Selected="True" Text="<--Select-->" Value="0"></asp:ListItem>  
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