.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

Dynamic Image Buttons in GridView not doing partial post back

Posted By:      Posted Date: September 09, 2010    Points: 0   Category :ASP.Net
Hi Gurus - Create a gridview with AllowPaging and AllowSorting = true- On page load, I bind it to datasource (in my case a webservice) - On gridview's rowcreated event, I dynamically add image buttons on the header of the grid for sorting (up/down arrows). On header I have column name and the image. I removed the Column name default sorting link. So user can now only click the image button for sorting.-  Call sorting method This works perfectly fine without AJAX. The paging, sorting works fine. Also when I apply AJAX the paging works fine. But the sorting is doing a full post back instead of partial postback. I have my gridview within UpdatePanel and Triggeres is set on gridview sill it doesn't work.ASPX Code<form id="form1" runat="server"> <asp:ScriptManager ID="ScriptManager1" runat="server" /> <div> <asp:Label ID="lblAccount" runat="server" Text="Account #: "></asp:Label> <asp:TextBox ID="txtAccountNumber" runat="server">12203A30</asp:TextBox> <asp:Button ID="cmdGo" runat="server" Text="Go" OnClick="cmdGo_Click" /><br /> <asp:UpdatePanel ID="UpdatePanel1" runat="server"> &l

View Complete Post

More Related Resource Links

Trouble with update panel and dynamic controls and post back


 I have a page that is mostly dynamically built in the page load of my VB.net code behind page.

The issue is that I made a change to the page and added a button that redirects to a secondary page. When the button is clicked there is a very noticeable lag until the button click event fires because the page is being rebuilt every time.

I had not wrapped the code in the load event in the If not ispostback.... because I have dynamic controls that the user interacts with and I need the page to be rebuilt when the user clicks them.

The dynamic controls are clickable table cells. I did some looking and I found that the RegisterPostBackControl. I thought this would be perfect but, it does not although I maybe using it incorrectly.

Here is the code flow.

Page Load

If not ispostback then


end if


private sub setuppage()

'get a reference to the scriptmanager on the master page

Dim scriptManager = DirectCast

Adding Dynamic Rows in ASP.NET GridView Control with TextBoxes and with Delete functionality

In my previous examples, I have demonstrated on how to add dynamic rows in GridView control with TextBoxes and how to save the values into the database. Now, seems that most of the developers are asking if how to add a delete functionality with it. So in this example, I'm going to show on how to delete a certain row in the dynamic GridView with TextBoxes.

Gridview with Radio Buttons

As now, Radio buttons are HTML controls, I am not able to get it on server side. When user select any radio button and press submit, Control will not available at code behind, you can use "e.Item.FindControl" as it is not "runat='server'". I want ID "Primary Key" value for selected radio button. To achive this I took the help of Javascript. I wrote javascript function that sets the values of "Primary Key" in hidden field when user clicks on any radio button. Now when user clicks on Submit button, user can get selected value froim hidden field.

Adding Dynamic Rows in GridView with TextBoxes

I decided to write this article because this has been asked so many times before at the forums(http://forums.asp.net) . Basically, this example shows on how to generate a Row in GridView with TextBoxes when clicking a Button that is residing inside a GridView Footer.

Adding Dynamic Rows in GridView with TextBoxex in C#

I decided to write this article because this has been asked so many times before at the forums(http://forums.asp.net) . Basically, this example shows on how to generate a Row in GridView with TextBoxes when clicking a Button that is residing inside a GridView Footer.

Post back puzzle


Hi, I have a website where the user makes a selection from a combo box and it then fills a couple text boxes with text based upon the selection. I'm sure as you know it could take a second for the text to appear in the text box due to the post back. I know there is no way to make it instantanious, so what I would like to do it fill the text box with somthing like "Loading Info..." so the user does not type in it while the information is loading.

If you would like to see what I mean please go to this page: www.epiclinks.com/create.aspx and mess around with the combo boxes and You'll see what I mean.

What I would like to do is have it do a post back to write "Loading Info..." and then do another post back to fill it in based upon their selection. How would I do this?

I'm up for anything, so if you have a better solution than that please let me know.


Gridview with Image Button


i have a gridview and i want to perform edit and delete with an image button

but unable to figure out the events and how i m gonna make my grid into edit mode ??

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" 
                <asp:TemplateField HeaderText="S.No">
                        <asp:Label ID="Label1" runat="server" Text='<%# Container.DataItemIndex+1 %>'></asp:Label>
                <asp:TemplateField HeaderText="Edit">
                        <asp:ImageButton ID="ImageButton1" runat="server" ImageAlign="Middle" 
                            ImageUrl="~/image/ico_edit.gif" CommandName="Edit" 
                            onclick="ImageButton1_Click" />
                <asp:TemplateField HeaderText="Delete">

How To display image in GridView as hyperlink


Hello Everyone 

Could someone please help me with a little issue....

I was able to save the image in the database as binary....... but now i don´t know how to display it in the GridView as a hyperlink.

I´ve read something about ImageField..... I´d appreciate any help .


Edin, New and Delete buttons in gridview?


Hi guys. I have gried view that shows me all info from the table i made. So my SelectCommand works fine. I'v add 3 additional buttons "new", "edit" and "delete" i'v made their query but still have mistake by clicking it in browser. I follow from the book Begginer to Novice 3.5 ASP C# but that's what it's shown. I know something missing. I'v check in the net but not found how to fixed, because i use SqlDataSource. Can you advise how to proceed from here? Here's what i did:

<asp:SqlDataSource ID="SqlDataSource5" runat="server" ProviderName="System.Data.SqlClient" ConnectionString="<%$ ConnectionStrings:ThisIsMyConnection%>"


              SelectCommand = "SELECT * FROM [Resident] WHERE (([FNAME] + ' ' + [LNAME] LIKE '%' + @FANDLNAME + '%'))"


              UpdateCommand = "UPDATE Resident SET FNAME=@FNAME, LNAME=@LNAME, MobileNum=@MobileNum, HomeNum=@HomeNum, OfficeNum=@OfficeNum, FaxNum=@FaxNum WHERE FNAME=@original_FNAME AND LNA

checkboxlist full post back problem is association with PopupControlExtender


I have used a checkboxlist in association with PopupControlExtender. All the items are inside the update panel. I used the server side SelectedIndex changed event of checkbox list for another purpose.  But it cause full post back while checking the check box item. The update panel doent make any sense here.

        <asp:ScriptManager ID="Scriptmanager1" runat="server">
        <asp:UpdatePanel ID="UpdatePanel3" runat="server">

gridview help on each dynamic row solve this show values based on all columns

<asp:GridView style="Z-INDEX: 101; LEFT: 1px; POSITION: absolute; TOP: 183px" id="Gridview1" runat="server" Width="613px" Height="127px" ForeColor="Teal" Font-Size="12pt" Font-Names="Palatino Linotype" Font-Bold="True" Visible="False" BorderColor="Transparent" AutoGenerateColumns="false" CellSpacing="2" GridLines="None" OnRowCreated="Gridview1_RowCreated" SelectedIndex="5" ShowFooter="true" OnRowDataBound="Gridview1_RowDataBound"><Columns>  <asp:TemplateField HeaderText="ItemCode"><ItemTemplate> <asp:DropDownList id="DropDownList1" tabIndex=16 runat="server" AutoPostBack="True" DataValueField=" ItemCode " DataTextField=" ItemCode" ></asp:DropDownList></ItemTemplate></asp:TemplateField>  <asp:TemplateField HeaderText="ItemName"><ItemTemplate> <asp:DropDownList id="DropDownList2" tabIndex=16 runat="server" AutoPostBack="True" DataValueField="ItemName" DataTextField="ItemName" ></asp:DropDownList> </ItemTemplate> </asp:TemplateField>  <asp:TemplateField HeaderText="Category"&

How to return back to a specific page in a gridview list?

Hello,  I have a gridview with paging. So for instance, I'm on say the page number 10, and I open the form details on a specific record_id (link). After I update/submit the form, it returns to page number 10. But, if I go to another page, for instance page 5, and submit the form, it returns to page 10. I've tried some things, for instance history.back(), but it returns to the first page I went to, in this case page number 10 (or whatever the first page I go to). Hopefully this code helps to understand what I'm asking: <asp:GridView DataKeyNames="Referral ID" ID="gvList" runat="server" CellPadding="4"     ForeColor="#333333" GridLines="None" OnRowCommand="gvList_RowCommand"     OnRowDataBound="gvList_RowDataBound" OnRowDeleted="gvList_RowDeleted"     OnRowDeleting="gvList_RowDeleting" AllowPaging="True" PageSize="20"     AutoGenerateColumns="False" OnPageIndexChanging="gvList_PageIndexChanging"    OnRowCreated="OnRowCreated" AllowSorting="True" OnSorting="OnSort"> protected void gvList_PageIndexChanging(object sender, GridViewPageEventArgs e)        {   &nb

Editing Image in Gridview VB.net

Hi, i'm back again and would like to seek help and advises from you experts on how to deal with problem. I have a table that accepts news data like title, content, link and a single image to be uploaded and attached to the database (not on file server). Now i want this Image Column (varbinary datatype) to be edited in case. When I tried puting an html fileupload in editing mode using gridview, I am getting error from the Image Column conversion like Image type cannot be converted into string. I know there is this scenario of reading and assigning data in my table, and then changing some codebehind and at the same time binding it into the gridview.This is my Image Handler:<%@ WebHandler Language="VB" %>Imports SystemImports System.WebImports System.ConfigurationImports System.Data.SqlClientPublic Class Handler : Implements IHttpHandler        Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest        Dim con As New SqlConnection()        con.ConnectionString = ConfigurationManager.ConnectionStrings("automotiveConnectionString").ConnectionString                ' Create SQL Command           &n

Rendering Partial view postback with data posted back and entire view context

This is the base Index.aspx view:<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage" %> <%@ Import Namespace="LMWebUI.Components" %> <%@ Import Namespace="LMWebUI.Models" %> <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <% Session["HasScripts"] = "false"; %> <% if (Utility.FixNull(Session["LoggedIn"],"false") == "false" ) {%> <% ViewData["Login"] = new PartialRequest ( new { controller = "Account", action = "LogIn" } ); ((PartialRequest)ViewData["Login"]).Invoke(ViewContext); %> <%} else {%> <div>Logged In Content here</div> <%}%> <script type="text/javascript"> LMx.init(); </script> </asp:Content> This is a helper class> that I found elsewhere, doesn't solve the problem, but still works to display the viewpublic class PartialRequest { public RouteValueDictionary RouteValues { get; private set; } public PartialRequest(object routeValues

Display image icon in HyperLinkField of Gridview

 Hello everyone! Can someone please tell me how to display an image in a HyperLinkField of a gridview?  Instead of words, I just want to show a simple little icon that can be clicked on and pass a query string to the next page.  The first hyperlink field I have set up works perfectly and passes the querystring to the next page.   The second hyperlinkfield is my attempt at showing the image but it's giving me a squiggly and telling me "the element img cannot be nested within the element hyperlinkfield" I got this technique from this brief article   - I would like to accomplish exactly what it says it is suppose to do. Thanks!   <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="clientID"> <Columns> <asp:BoundField DataField="clientFirstName" HeaderText="First Name" /> <asp:BoundField DataField="clientLastName" HeaderText="Last Name" /> <asp:HyperLinkField HeaderText="More Info" Text="View more info..." DataNavigateUrlFields="clientID" DataNavigateUrlFormatString="Cli

Problem with "Edit" and "Delete" buttons in gridview!

Hi everyone. I have problem with the buttons Edit and Delete in Gridview for very long time and i really need help about it. So i have gridview and sqldatasource. First i try to make this buttons manually and as you will see in sqldatasource 5 and 6 i have these buttons my records show up but the buttons not working. After that i was advised to do it automatically with gridview smart tag options and Generate columns - this is what i did in sqldatasource7 and gridview7. But both ways i need to change the statements with my own because that what they create not works. So select statement works. Now the error that i get in both ways is the same:The GridView 'GridView(the number could be 5,6 or 7)' fired event RowEditing which wasn't handled.See how looks my page:Now here's my code in aspx:<%@ Page Language="C#" Title="Specific Search in Phone Directory" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %> <html xmlns="http://www.w3.org/1999/xhtml"> <head id="Head1" runat="serv
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend