.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

Weird behaviour of Gridview with textbox with autopostback OnTextChanged and AJAX CalendarExtender

Posted By:      Posted Date: September 17, 2010    Points: 0   Category :.NET Framework
I ran in to some strange behaviour of Gridview with textbox with autopostback OnTextChanged and AJAX CalendarExtender. This gridview is in an updatepanel with scriptmanager. When my gridview is filled with data, it keeps running my OnTextChanged  function and therefor makes my application terribly slow. I need to have the autopostback and ontextchanged function to recalculate stuff in my gridview. Does anybody know of this problem and if so does anybody found a workarround ?

View Complete Post

More Related Resource Links

Gridview, MasterPage, Ajax, AutoPostback and FRUSTRATION

I have a peice of code for a custom Gridview that works great if it is not in my Master.Page. As soon as I put it in my masterpage /ajax update panel it seems the autopostback function of my checkbox stops working.... please advice. Here is the relevent code :   NOTE: (I have tried to turn on ViewState in every thing I could think of.....still nothing) <asp:GridView ID="gvHR" CssClass="gridview" runat="server" AllowPaging="True" EnableViewState="true" DataKeyNames="HRID" AutoGenerateColumns="False" DataSourceID="ldsHR"> <Columns> <asp:BoundField DataField="FirstName" HeaderText="FirstName" ReadOnly="True" SortExpression="FirstName" /> <asp:BoundField DataField="LastName" HeaderText="LastName" ReadOnly="True" SortExpression="LastName" /> <asp:BoundField DataField="EmailName" HeaderText="EmailName" ReadOnly="True" SortExpression="EmailName" /> <asp:TemplateField HeaderText="LeftCompany" SortExpression="LeftCompany&quo

copy value from one textbox to another inside UpdatePanel with AJAX CalendarExtender


I have a calendar extender tied to a textbox.  When I select a date from the calendar, it displays the selected date in the textbox.  When I click a submit button, it passes no value.  Any ideas on why the textbox doesn't store the value from the calendar?

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If Not IsPostBack Then

            If txtPickUp.Text = "" Then
                txtPickUp.Text = Date.Today
            End If
            If txtDropOff.Text = "" Then
                txtDropOff.Text = Date.Today
            End If

            btnSearch.Attributes.Add("onclick", "return ConfirmL();")
        End If
    End Sub


          <asp:TextBox ID="txtPickUp" runat="server" ReadOnly="true" Width="75px" />
         <asp:CalendarExtender ID="CalS" runat="server" TargetControlID="txtPickUp" PopupButtonID="txtPickUp" />


Textbox Editable GridView in ASP.NET

This article describes how I made a fully editable gridview in C# using ASP.NET 2. The idea is that the GridView looks and works like an Excel spreadsheet. You see all the cells in the table, and you can edit any of the cells you like, and they are automatically updated (i.e. saved to the database). This is very often how people expect data tables to work in web pages, and I've often seen people clicking in vain on un-editable gridview cells, somehow expecting to edit them, and not understanding that they need to click an Edit button at the end of the row.

AJAX GridView Checkbox Select All in ASP.Net

In the previous article GridView Select Multiple Rows you learnt the multiple row selection in GridView control. Here you will get the C# code sample to select all the gridview rows using single checkbox server control. You can highlight the selected rows with different color and Font state Bold. If you want to use the selection values on different ASP.Net

AJAX GridView Paging and Sorting using C# in ASP.Net

To enable the GridView Paging and Sorting to update the GridView Data without refreshing the ASP.Net web page AJAX Extension controls are used. UpdatePanel is used to hold the GridView control that triggers the events for the controls placed inside it. By Default UpdatePanel triggers the asynchronous postbacks for its child controls.

GridView Paging Using Ajax in ASP.Net

To enable the GridView Paging and Sorting to update the GridView Data without refreshing the ASP.Net web page AJAX Extension controls are used. UpdatePanel is used to hold the GridView control that triggers the events for the controls placed inside it. By Default UpdatePanel triggers the asynchronous postbacks for its child controls.

Building a grouping Grid with GridView and ASP.NET AJAX toolkit CollapsiblePanel

I've posted an update to this post to apply on demand loading of Details data using ASP.NET AJAX PageMethods. I'm demonstrating the usage if CollapsiblePanelExtender client events on the new post. Check it out.

I admit, Matt Berseth is really inspiring me! Few days ago I pass through 2 of his great posts:

.Surrounding your Data Table and Dialog Controls with ComponentArt Styled Panels
.Building a Grouping Grid with the ASP.NET 3.5 LinqDataSource and ListView Controls
The first one is pure design tips one which I used for making good presentation of my demo here. The 2nd post is actually the idea.

Ajax Enabled Gridview using JavaScript in ASP.NET

Before explaining the article, I would like to thank all readers who read my article and voted for it. Your appreciation for my article gives me strength to write more good articles. Hope in future I will get your valuable comments and suggestions. Now I won't waste your time and come back to the topic. I have written this article on 'Ajax Enabled Gridview Using JavaScript in ASP.NET'. In this article, I will show you how to make a Gridview using a simple HTML table, JavaScript and XML HTTP for Ajax call without using any ASP.NET control.

Using Code

GridView Javascript Click Row and Ajax

This article shows 2 common tasks with the ASP.NET GridView: Binding a List (generic) of objects as DataSource and on clicking a row, getting the values of the selected row by a javascript function. In the example a List with User-objects is displayed. On clicking a row containing the data of a User-object, the Id of the object is used to get the address of the user by an Ajax-call and display it in a details-field.

GridView Multiple Filter AJAX Control

This AJAX control enables the user to filter data within any column inside a GridView. The user can add multiple filters and can delete existing ones too.

GridView Sorting/Paging : 'REAL' AJAX with Asp.Net Series

This is a continuation of my 'REAL' AJAX with Asp.Net (not Asp.Net AJAX) series posts for those of us trying to stop relying on Asp.Net 'AJAX'.

Ok, nothing too dramatic to start things off, we are going to make some tabled data sortable and pagable all without using a bit of postback. Not only that, but it is going to be incredibly easy!

Editable Gridview with Textbox, CheckBox, Radio Button and DropDown List

This is an example of an editable gridview containing different ASP.NET controls. When user wants to edit values in gridview, she/he can use these controls to edit existing values in Gridview Edit Mode.

Using the Code

watermark textbox using Ajax control

This is pretty simple compared to jquery. Since we need refer a dll only. we dont want any script for this. we just include that reference into our website.

Textbox in ItemTemplate inside Gridview, unable to get the value


Hi. I have a itemtemplate inside a gridview.

<asp:TemplateField HeaderText="Enter OTP">
                            <asp:Label ID="Label2" runat="server"
                                style="font-family: Arial, Helvetica, sans-serif; font-size: x-small"
                                Text="PIN Num:"></asp:Label>
                            &nbsp;<asp:TextBox ID="txtPIN" runat="server" Height="21px" Width="100px"></asp:TextBox>

jquery datepicker not popping up in Gridview Edit Template textbox


I have a gridview that I can't for the life of me get the datepicker calender to pop up for.  I've been using the datepicker for months very successfully for a variety of textboxes on the page and inside of formviews but this is the first time I've tried using with gridview.  I didn't expect any issues however can't seem to find anything to work.  I have searched the forums for 2 days and attempted any suggestions found within the solutions to no avail.  I've tried using the CSS to link the datepicker but everything stopped working when I changed the code and my page which uses a css style already got all distorted looking.  Please help!

Here is my gridview (only included a part b/c it is large and am only having problem with the datepicker for the date completed text box)

<asp:GridView ID="GridViewCompleted" runat="server" AllowPaging="True" AllowSorting="True"
        AutoGenerateColumns="False" BackColor="#CCCCCC" BorderColor="#999999" BorderStyle="Solid"
        BorderWidth="3px" CellPadding="4" DataKeyNames="job_id" DataSourceID="SourceJobProjectCompleted"
        ForeColor="Black" CellSpacing="2">

search multiple words into textbox and populate all records in gridview related those keywords


I have a textbox and a gridview which is bound to a table

what I want to achieve is a solution where lets say there are two records - e.g. "1. Book and 2. Red", i want a user to type in those words and the gridview shows the results as followed;

1. Book

2. Red

I have set up the sql data source and everything and my like operator is this...

LIKE '%' + @record + '%'

how can I solve this problem?

Changing a textbox's readonly property right before update on a gridview


I have a gridview with a date field. I don't want the user to be able to type in their own date and mess up the format so I made the property readonly. That date is then set by a point and click interface. This is all working fine but when the user clicks update this field doesn't update because it's readonly. If i turn readonly off it works so is there a way to turn off the readonly property right before submit?

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