Web Forms :: Call Back Event On Update Panel
Feb 28, 2012Is there any call back event for update panel??
View 1 RepliesIs there any call back event for update panel??
View 1 RepliesI 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.
i have a tree in parent UpdatePanel on selection of Parent panel tree i am enablling/disabling the child UpdatePanel button. but it does'nt why?
how to update child panel content event on parent updatepanel content event?
[code]....
I've exempted the irrelevant bits of code. Essentially, I am trying to change the URL of an image control inside of an update panel inside of a custom user control from a function called inside an update panel from my main page. Using UpdatePanel.Update() isn't working: I end up waiting for the next full page POST to occur before all the updates I make to CustomControl from buttons within the main page's update panel are visible. I verified that Update() was being called via the debugger: there are no issues in that department.
Here, you can see Custom Control and the Button declared. The button is in an update panel to avoid giving a full POST and causing the whole page to reload.
<cust:CustomControl runat="server" ID="CustomControl1">
<asp:UpdatePanel runat="server" ID="UpdatePanel1"> <ContentTemplate>
<asp:Button id="Button1" runat="server" OnClick="DoStuff" />
</ContentTemplate> </asp:UpdatePanel>
This control stores images within their own seperate update panels because rerendering the images is very slow (it requires processing arrays of millions of datapoints) and the user only ever needs to modify one image at a time. I'm using Image1 as an example.
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Basics: I have a text box (txtDepositAmount) that people can enter a deposit amount into and a drop down (ddlSelectedTerm) that sets the terms. Through these two values I calculate the APY (lblCurrentApy).
Rules: If only one of the values is selected I still want to do an update on the current APY label and clear it. If either value changes I want to update the current APY and recalculate.
The problem: As soon as I click away from the textbox and onto the drop down to select my term the drop down flashes and closes because the textbox TextChanged event was just fired.
I have to click on the drop down a second time to be able to select anything!
Do I need to change what event I'm looking at or do I need to move some of the controls outside of the UpdatePanel? Can this only happen if some of the business rules change? Should I just give up and go to javascript?
[code]....
Im using updatepanel in my screen.. i have 2 pages when i click submit button in page1 then it ill be redirect to page2 ....in page2 i have one back button..i wrote click event onclick="history.go(-1)"when i click back it just redirect to page 1 but records already showned in page1 not displayed .how can i sove this problem? cai i use any scriptmanager?
View 2 RepliesI have a gridview in an update panel with the following code to select a row, this in turn updates another updatepanel with details from the form record.
protected void gvMainGrid_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
//Make the entire row clickable to select this record
//Uses javascript to post page back
e.Row.Attributes["onmouseover"] = "this.style.cursor='hand';this.style.textDecoration='underline';";
e.Row.Attributes["onmouseout"] = "this.style.textDecoration='none';";
e.Row.Attributes.Add("onclick", ClientScript.GetPostBackClientHyperlink(this.gvMainGrid, "Select$" + e.Row.RowIndex));
}
}
I am manually binding the gridview from a database and don't want to rebind the grid just to highlight the row, but I can't seem to add any javascript to the onclick event, it seems to either show the GetPostBackClientHyperlink or the row highlight javascript.
I am building a system for a school project. I currently have several Update Panels on the page that have many different controls on them. I also have a single Label control that i use to display messages to the user. I would like to have this label within an update panel also but there are literally hundreds of triggers that would require it to be updated and i dont want to type an absurd number of triggers for this one control.Is there a way for me to have this one panel update regardless of what happens?
View 2 Replies 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.
[code]....
I have a page that the users get redirected to. On page load this page runs a bunch of code behind that and loads table. The processing could take a few seconds to minutes depending on how big a report is run. Is there any way to completely render the page before automaticly kicking off the code? I am trying to stay away from forcing the user to click on another button.
View 3 RepliesIn the page load evertything is working fine. Iam using Updatepanel in my page .Images are not displaying with post back i am using telerick grid and jquery in my page. how to get images on postback
View 4 RepliesI have multiple update panels in a page. how I can know which update panel caused partial page updation on client side before page is partially updated?
View 3 RepliesI have gridview and below that I m having previous, Next and Image Viewer.When I click on previous and Next, the image is getting displayed in a right way. When I select on the particular row, it is also working fine.Now, I m doing paging, If I click on Paging, The first row in the 2nd page is getting highlighted, the correct Image is getting in code behind, but the update panel is not working and the same old image is displaying..May I know, why the update panel is not working for that event.
View 6 RepliesLooking for the best technique on handling or at least some documentation showing an example.
Starting Page
Gridview control withing an update panel (also various controls used for filtering NOT IN UPDATE PANEL)
Databinding does not happen during page load.
Databinding is initiated when update panel trigger (asp:Button object) is clicked
Hyperlink column is added to returned records
Hyperlink posts to a separate page for detail for record which the hyperlink was clicked.
Second Page
While navigating via the browser back button to previous page (which contained the update panel and gridview) only the (various controls used for filtering) have retained state. The gridview is not shown (which is how the page loads initially when starting) How can I retain the state of the Gridview and add a step in the browser history all together?
How to display wait image when data is being populate into one drop down based on selection of another dropdown inside update panel....
View 1 RepliesI have a grid view in Ajax UpdatePanel. In a column of a grid view I have a button call btnAddNewRecord. I need to fire btnAddNewRecord.Click event once I click on that.
How can I do this?
I have an search button on my page that carries out a search function that runs for a while, while it's running I want to display a 'searching' label and image in an update panel. However, even though I call UpdatePanel.Update() at the start of the event the panel doesn't update until the event, which is useless. How can I get the panel to update when I want it to ?
The following is the code for my button which is supposed to update the panel and then carry out the search:
[Code]....
i want to do a textchange event such that on textchange i search for the input in the database and it fetches a result into a label. it works without the update panel, but i want to avoid page refresh for it to work.
View 3 RepliesIn my web form, I have dropdown list with autopost back true in ajax update panel. I have javascript alert in Onchange event. But it fire twice and alert msg show it twice
View 3 RepliesI have textbox inside update Panel.textchanged event is not fired.
I wrote code like this[Code]....
But txtUserName_TextChanged is not fired.
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 ?
I am adding a click event (display alert on click) to a html hyperlink inside an UpdatePanel on document(ready). However, the event never gets fired when I click the hyperlink. Is it because of ASync postback? What is the correct way to do this?
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I have a checkbox inside a update panel. Based on certain conditions, I set the autopostback property to true and also attach a event handler as below
chkBox.CheckedChanged += new EventHandler(this.ChkBoxChaned_Click);
But when the checkbox is checked/unchecked, autopostback happens but the event handler does not get hit.
I have update panel in which i have a label and a textbox and a button
I havwe a Radiobutton list which i am using In the asynchoronous postback trigger of the update panel.
In the Control Id of the trigger I have passed Radiobutton List Id and in the event name I am passing SelectedIndexChanged
But when I click the button no event is firing rest all is working fine.
I have a simple Textbox for entering password and the checkbox named Show passowrd beside it. Textbox mode is Password by default. These controls are in the table and I am using Update panel on top of the table. My application framework is 2.0 and I am Using ASP.NET 2.0 AJAX Extensions.
Now When i write some text in the textbox and check the Showpassword chekbox then the checkbox event is not getting fired. when Second time i click it then the event is fired and text in the textbox is removed and the textbox mode is set to the SingleLine. This functionality I am achieving by writing a code in the CS File.
When I remove the Update panel then the event is fired correctly everytime, but when usign Update panel and some text in the textbox then i have to check the checkbox twice for the desired functionality.