C# - Unable To Create Event Handler For A LinkButton Inside A ListView ItemTemplate
Feb 1, 2011
This is a weird issue. I have a List view with 2 Link buttons. "Edit" and "Delete" Iam able to attach an event handler for the first linkbutton(Update). Code in the event handler executed fine. But If I try to attach a event handler for the second link button(Delete) , I get an error.
My Item Template Looks like this.
First Item works absolutely fine. But If I attach the second handler, I get the following error
Am I missing some thing ? Note - There is no error if I try to attach the 1st event handler to the second link button.[ie EditLinkButtonClicked to DeleteLinkButtonClicked ] Issue occurs only when I try to attach DeleteLinkButtonClicked to DeleteLinkButton
running the website and viewing the page source, I have realised that there is an OnClick event created for the linkbutton, however, this may be generated anyways. By running my solution using VS debugging, I can see that my method won't fire by clicking any of thos generated linkbuttons.
I have an ItemTemplate inside a listview with a linkbutton wrapped around three table rows. The linkbutton is supposed to make the whole rows clickable but this only works in IE. Does anyone have an idea about why? The link works if I move the rows out of the linkbutton and write some gibberish text instead, but that's not what I want.
Very new to ASP.NET (using C# behind) and am having trouble figuring out the following scenario. I have a DataList that is populated (code below) and wanted each cell to be clickable. When the cell is clicked I wanted to know the unique ID for that cell. In my code behind, my OnClick method looks like this:
i need to use linkbutton(Go for more detail)......on that link button i need to check session values .if session variable on that page exist..it should redirect to a different page...but if session on that does not exist..it should be redirected to a login page.....my link button is within datalist control....
i m using following code in link button.....but somehow is not working..
I have discovered something strange when using a ListView. I have a listview contained inside an uodate panel and everything works OK until I edit the editItemTemplate to use a LinkButton instead of a Button.When i use a LinkButton then the Page_Load event is fired.
I have DropDownList inside GridView. Now I would like to add event handler for dropdownlist which would react on SelectedIndexChanged.I'm nesting DropDownList inside GridView by using RowDataBound event for GridView.(http://www.highoncoding.com/Articles/169_DropDownList_Inside_GridView__Method_1_.aspx) and tell me how to add event handling for dropdownlist
I have a LinkButton inside a GridView (via an TemplateField). No matter what I try, the LinkButton will not invoke its event handler. I have tried both traditional event handler ("OnClick")A OnRowCommand event handler at the GridView level.In both cases, I've debugged and it doesn't even catch the event handler.
I am fairly new to web development & stuck up using the ajax:popupExtender inside a gridview/Itemtemplate. So, would like to get help from experts in the forum
Currently I m developing a web page which holds a grivview. As one of the column needs a multiple column dropdown with soring facility, I am using ajax:popupExtender to achive that. Basically in the column i have a Panel1(label & image which mocks up has a dropdown), ajax:popupExtender, Panel1(gridview to have mutiple column). When user clicks on it the ajax:popupExtender is called & the targetpopupid which is a panel2 with gridview is called.
Here when user clicks on thePanel1, I am able to display Panel2 using ajax:popupExtender. Also, when user selects some row, I am able to close/hide the ajax:popupExtender in the code behind using cancel(). (this is done in selectItemIndexchange of panel2 grid view).
But my problem comes when user doesn't select any row & clicks back on the panel1, the ajax:popupExtender will remain open. but it should have been closed as i am trying to mock up dropdown dunctionality. how can I hide/close ajax:popupExtender when user clicks on panel1 2nd time.
Following are the different approaches I tried but nothing worked out.
1. wrote JS, & tried to add attributes of the Panel1's onclick event. Failed: Error - Object is undefined. even though i passed a valid obj from code behind.
Is there a technical reason for the existence of Page.PreLoad or is this just convenience to have a place where you can neatly place code that always have to be executed before the Load code? Is there a difference between adding code in the PreLoad event handler and adding code at the top of the Load event handler? And what would be a typical scenario where you use PreLoad?
I have created a master page for website layout in my project. I have used a linkbutton control to trigger between Login/Logout functionality but when I click on this control the underlying click event handler is not being executed anyway.When I click on this control, the page pointed by its PostBackUrl property is open which should probably occure after its click event hander have been executed.
I wanna execute same functionality for all DataGrid controls in my application for example.. inserted event handler. but without calling it manually. I mean to be called automatically.Is there anyway to do that ?