C# - Programmatically Add A Button To A Gridview And Assign It To A Specific Code-behind Function?
Mar 10, 2010
In runtime I'm creating a DataTable and using nested for-loops to populate the table. This table I later assign as DataSource to a gridview and on RowDataBound I assign the value of each cell. I want to know how I can give each cell a button and assign that button to a codebehind function. I'll have 12 buttons and each one will contain a different value. I would prefer if they all call the same function with some kind of event that stores the cell-specific value. This is the code where the Table gets created:
I tried to assign the value of button text through the following syntax where MyValue is the public variable with the value "Checkout" in the code behind.
[Code]....
But it turned out that it displayed <%=MyValue%> instead of "Checkout". Yes of course I can still assign button text value in the code behind but just don't know if there is any other solutions to it.
i have a really annoying problem in that i need to programmatically create a SQLDatasource and then add it to my asp.net page on the load event. If I do this it all seems to work ok in terms of data binding but for all buttons on the page their postback events stop working?Is this a know issue or must I be doing something wrong?
Do you know if it's possible to add a button in a gridview that when clicked, downloads a document listed in the gridview to a specific location, and then opens the document that was just downloaded? (It's too many steps for the users to right-click, do a file save as, save the document, and then open it). So, I need to accomplish a lot with this little button. Also, I'd need to specify a directory on the C drive to save it too.
My motto is to call a Java script function at the end of button click code behind. ie, firstly i need to execute the server side function after which my java script function should get invoked. My server side method is as follows
protected string SaveEmbedURL_click() { if (txtembedurl.Text != null) { School aschool = new School(); aschool.SchoolId = CurrentSchool.SchoolId; aschool.EmbedUrl = txtembedurl.Text; SchoolRespository.updateEmbedUrl(aschool); return "true"; } } My Java script function is as follows function SaveEmbedUrlClientSide() { admin_CustomizeTheme.SaveEmbedURL_click(true); $('#lbl_embedcode').removeClass('hide').addClass('show'); $('#embedCode').removeClass('hide').addClass('show'); CopyToClipboard("embedCode"); }
I want to try and use an updatepanel. So I have surrounded this code with an updatepanel.
Now I need to put "LinkButton57" as AsyncPostBackTrigger. It seems that I cant put that in the HTML code in the Trigger tags as the updatepanel only searches for parenting controls.
This LinkButton57 is located deeper in the control hiearchy as you can see here. So I am trying to put this programatically in the Page_Load event.
Now if I run the below code, I get this exception(Object reference not set to an instance of an object) and wonder if I could be thinking right here and just miss some details perheps? Will be happy for answer.
I have an aspx page with two buttons, one of the buttons has an OnClick attribute to a function that should be run when clicked. When the other button is clicked there is an if statement checking if the page is a postback, if it is then I run some statements that need to be run when that button is clicked. That postback button works fine. However, the other button, when it's clicked the function it's supposed to call never executes, and the statements inside if (Page.IsPostBack) get executed instead. What can I do to fix this? Is there a way to make the button that calls a function not do a Post back?
I have created a folder in DotNetNuke programmatically on the root portal directory. I just want to assign permissions to it only one time, for example I want to make it read only for authenticated users. Any advice on how to accomplish this using C# or VB.NEt?
I am banging my head with gridview at the moment. There's a problem I just can't get my head around. I'd be very greatful for any advice given. I have a function that creates a DataTable with three columns and four rows. In each of the cells I set the text to a random number through RowDataBound event. I would like to just make the cell clickable and have a code-behind function that gets the position of the cell (column, row) and the value of the cell when the user clicks it.
I wanna assign a JavaScript CallBack function to an UpdatePanel which will be gets called when the UpdatePanel finishes its tasks. After, the UpdatePanel will be sending a string as a result. This JavaScript CallBack function will have to process this resulting string.
I need to call a javascript funtion, on the click event of buttons(asp button or html button) in my gridviw.Also I need to pass the ID from the gridview(datakey value) as a parameter to the javascript function.
ie ,All the rows in my gridview has a button field,on clicking each of the buttons ,a javascript function is to be fired ,and the ID of that particular row from gridview(datakey value) should be passed to the javascript as a parameter.
I'm developing a web application that displays items from a work queue to a user. When an item is selected I have the app lock that item out so no other user can select it. By hitting the back button in the app it unlocks the item.
I want to be able to unlock the item if the user hits the backspace key. I know what code I need to unlock it. I just need to know how to make the code execute on backspace key stroke.
I have a label in aspx page. I am trying to assign text to that label according to my search criteria. My problem is if i put that label (lblMsge) inside I am unable to assign the text from code behind. if i put that label outside the tr its working fine but the display is not proper. I tried by putting that label in div tags also.Here is my code.
i have big(may be small) issue regarding ASPNetVideo:if i assign the URL directly the video (wmv) is displayed howeverwhen i assign URL using code behind (vb.net) the video is not displayed:
I have a simple user control (myControl.ascx) , in the myControl.ascx.cs file, I defined:
public string sUserName { get { return _sUserName; } set { _sUserName = value; populateData(); } }
In one of my aspx page, I use this control:
[Code]....
myNameSapce.Config.sType is a public value from a class, I just can't get that value for above inline code, is it possible to do that? Otherwise, I need go to the .cs file to do this: myControl1.sUserType = myNameSapce.Config.sType; But still hope I can do the inline code.
I hav a small problem, idont know how to express it. So i am using images for this purpose
First Page Second page
As Shown above i have to had a first page with each button for each row and when someone clicks on that button, he should be redirected to another page with a reference of that row giving the complete details of that row. Hope u all understood, the problem, now how to give the reference of the row to the button is my problem hope u all understand. By seeing my points u can understand that i am a beginner, so pls kindly explain me in detail.
