AJAX :: Getting Error In Update Panel When Binding Textbox?
Mar 29, 2011
I have the Textbox inside Update Panel
<td colspan="4" style="border: none;">
<asp:UpdatePanel ID="upnl_Period" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:TextBox ID="txtDate" runat="server" Width="90px" ValidationGroup="ReqForm" Text='<%#(((System.Data.DataRowView)Container.DataItem).DataView.Table.Columns.Contains("Date")? Eval("Date") : " ") %>'></asp:TextBox>
But iam getting the below error
CS1061: 'System.Web.UI.Control' does not contain a definition for 'DataItem' and no extension method 'DataItem' accepting a first argument of type 'System.Web.UI.Control' could be found (are you missing a using directive or an assembly reference?)
How i assign the value to Textbox which is inside Update Panel??? IF i remove the Update Panel every thing is working but i do with the update Panel . i dont want to page full postback.
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Similar Messages:
May 26, 2010
Refering to my post here http://forums.asp.net/t/1562244.aspx
My Code
[Code]....
Text Changed
[Code]....
now i m trying to show the result in the label by taking the update panel but its not displaying
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Jul 31, 2010
I have an update panel and data list. Data for this fields are loaded from database (to the textbox).
The save button should write data to database, unfortunetly it dosen't. Instead are loaded empty data. I think The reason is that the textboxes are inside updatepanel.
I tried to make an attempt to with Label. Data where to show from the textbox, instant i have an error:
Object reference not set to an instance of an object.
[Code]....
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Mar 11, 2011
I have an update panel that contains a textbox..I would like a situation when on selectedindex_change of one of those textbox to have my update panel containing the textbox invisible and then when another button is click to have my update panel containing my textbox visibile again. How do I do that.
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Apr 27, 2010
i have a Textbox inside an update panel, and each time the timer interval hits, anything being typed inside the textbox clears.
Is there anyway i could make the textbox retain the text inside while the update panel still updates?
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May 18, 2010
I have a update panel that is being refreshed every second or so, and the user is inputing data into this gridview via a textbox. when the user presses enter or send i would like the text box to be cleared. I call it to be cleared on my button event but it doesnt. It post to my gridview perfectly but it will not delete the text. I am assuming becasuse the control is outside of the update panel or the timer is a problem, I was looking around for a answer and saw to complete this you have to use java script. Can someone show me how to implement this in my code,
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
[Code]....
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May 2, 2010
I just added update Panel for Ajax..
Inside the update Panel I added few controls, which I cant Access them regular
like TextBox1.Text.
What should I do?
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Oct 1, 2010
Strange problem, not sure why it's happening. Basically I have inside an UpdatePanel a dropdownlist, a textbox, and a regex validator. page loads, ddl is bound and then based on the value in the ddl, a different regex is applied to the textbox. DDL could have search by "date" (with date regex), "last name" (with az regex), or "zip code" (with a zip regex). This way one search box can be used with 3 different regexes. Select zip code in the ddl, the OnSelectedIndexChanged is fired and the new regex is applied to the textbox. Simple.
The problem is, though, is that the page loads, I select Zip Code in the DDL, type in a zip code and then tab out NOT clicking the search button, and as soon as I do the regex validator fires with the red *. I wait about 2-3 seconds and it appears there's a postback that's fired somewhere because the textbox gets cleared out. Here's the update panel.
[Code]....
There is nothing in the code-behind that causes any postback except the dropdown list that applies the appropriate regex to the textbox.I see no reason why after 2-3 seconds the textbox gets emptied out. Is there a way to stop this?
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Mar 16, 2011
I am building a Web Content form in which the user enters some data in asp:TextBoxes, and presses submit to store the data in the database.
I am using an Upadate Panel, in which I have put the afore mentioned asp:TextBoxes. Is there a way to set TextBox.Text = string.Empty after the submit?
Note that I have implemented code, which sets my TextBox.Text = string.Empty in my aspx.cs file, which of course does not work since I am using the update panel with an AsyncPostBackTrigger...
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Aug 12, 2010
I was using this code , it was working fine before i place all my control in update panel.Response.Write("<script> alert('Record Saved Sucessfully...! Reference Number:Now it shows the following errorSys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed.
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Apr 1, 2011
I added a user control on master page and inside UserControl i add a link. and did some stuff on click of link.
Again i add another Content Page that is using the user control not the master page. Inside the table i add some textbox and save values in database . and the table is in UpdatePanel. and added ad trigger
<Triggers><asp:AsyncPostBackTrigger ControlID="btnUpdate1" EventName="Click" /></Triggers>
When i remove the usercontrol entering on table textbox values works fine. and again i put the same user control the link button contol doesn't work for me.
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Apr 27, 2013
I used timer to refresh page every 5 second.. but due to timer my multiline textbox doesn't scroll down bottom even though i used javascript to scroll to bottom..
This is my code
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<%--<style type="text/javascript">
textarea
[CODE].....
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Sep 5, 2010
We have two update panels on our webpage. Now first update panel is having button cancel. While second update panel is having a file upload control.
Now if the user uploads a file that is going to upload in about 2 mins, and in between, say after 30 seconds the user clicks the cancel button, the upload taking place in update panel 2 should stop.
How do we achieve this ?
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May 7, 2015
I want handle exceptions in update panel control with c#.
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Jun 5, 2010
I have a panel withitn an updatepanel with some buttons.
When one of the buttons is pressed, I'm updating a different update panel.
The problem is that when I click the button, nothing seems to happen.
If I click the button again , then I see the first update. If I click it again, I see the second update and so on..
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May 16, 2010
I have one update panel inside updatepanel i have one dropdownlist .When i change dropdownlist value so as per value button1 which is out of updatepanel not visible =true or false as per dropdownlist value.
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Aug 4, 2010
i have my master page with one update panel working like a banner, so when the timer do tick every 5 sec
the image change. That works fine, but i have an update panel in my index page, this update panel works with some buttons that change the text inside the panel when click.
Now, the problem.
When i click one button to change the text and the banner change, the text returns to his default text. The update in master page is affecting the update on index page.
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Jan 2, 2010
I have a panel bar..each time I press panel bar item I display ascx control with in update panel..but it lakes update panel loading time lot..how I can decrease that loading time?
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Aug 30, 2010
I have an AJAX Modal Popup panel that contains a RadioButtonList, 2 labels and 2 DropDowns. I want to update the Labels and DropDowns when a radio button is selected. My attempt at this posts back which causes the ajax popup to disappear.
aspx called on image click:
<asp:Panel ID="pnlModalContainer" runat="server">
<asp:RadioButtonList ID="rblTest" runat="server" RepeatDirection="Horizontal" OnSelectedIndexChanged="rblTest_SelectedIndexChanged">
[code]...
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Jun 8, 2010
I'm new to the world of Update Panels and i'm having a hard time figuring out how to use them properly.
I have a form that has a table(TABLE1)...and inside TABLE1 i am linking to a sql data source....at the bottom of the table i have a 'Add' button.
When the user clicks the add button...a modal popup appears (POPUP1) and inside the POPUP1 the user can click a link that can add a user...when the link button is clicked...a panel within POPUP1 is set to visible = true.
I have one update panel around the whole table and the add button...when i click add and then click the link to add a user....the modal popup disappears.
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Jul 17, 2010
i have a panel out of update panel.i have to make it hidden while navigating through different tabs,i tried these codes
Panel1.Attributes["style"] = "display: 'none';";
Panel1.Attributes.Add("style", "DISPLAY:none;");
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Jun 29, 2010
I have a bound field in a DetailsView that I want updated with the contents of TextBox2.Text when I update. I have TextBox2 set AutoPostBack True. Cannot remember how to move the contents on update. I tried converting the "Description_Update" to a template field without success.
I can copy and paste the contents of TextBox2 into the DetailsView and it does update as do the other DataFields.
<asp:TextBox
ID="TextBox2"
runat="server"
Height="80px"
TextMode="MultiLine" Width="360px"
Font-Size="Small"
MaxLength="120"
Text=""
Font-Names="Calibri" AutoPostBack="True"></asp:TextBox>
<asp:BoundField
DataField="Description_Update"
HeaderText="Descrip"
SortExpression="Description_Update"
/>
Do I need to use adn Eval or DataBind function or both. I have triued several combinations and do nothing but continue to butcher the database tables.
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Jun 21, 2010
I have a formview in Edit Mode, within an update Panel all and these arewithin a Modal Pop Up extender.On clicking Formview Update button, I want an image to appear within the pop up.I have put the image within another panel1 and runat server.For some reason the image is not showing on clicking update button.
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Jul 22, 2010
how to catch update panel's request start (before partial updation request is sent to server) and response receive (before update panel is updated) events.
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Feb 16, 2010
I have a user control, that has an update panel and update progress control in it.
I use this user control in more than 1 location on the same page.... problem is, when ucA posts back, I see the update progress control for both ucA and ucB. I assume this is because it is a user control and the update panel and progress are named the same?
Either way - how do I make it so that the update progress only displays for the proper user control?
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