CODEWITHSUNDEEP
c#eventslistviewwebforms
sd_dracula
sd_dracula

Reputation: 3896

asp.net ListView SelectedIndex event

I have a listview and I need to perform certain actions based on OnSelectedIndexChanged which is fine.

But now I am getting an error about OnSelectedIndexChanging which is undefined. I have no need for that one. The strange thing is that the other day it wasn't giving that error while today it does. Do I need to define it even though I am not using it? I rather not since it does a refresh of the page if its just there with no code behind (meaning you have to press the Select link on the listview twice)

I am also getting " raised event ItemDeleting which wasn't handled." error when I click on the Delete link which I was not getting the other day.

What can cause the 2 issues above?

Upvotes: 0

Views: 1965

Answers (3)

Rahul Uttarkar
Rahul Uttarkar

Reputation: 3637

If you bind listview to datasource at codebehind , you have to write some code in SelectedIndexChanging event.

So the code will be :

    protected void ListView1_SelectedIndexChanging(object sender, ListViewSelectEventArgs e)
    {
        this.ListView1.SelectedIndex = e.NewSelectedIndex;
        //bind listview again here !
    }


    onselectedindexchanging="ListView1_SelectedIndexChanging">

I Hope This will Solves your Problem.

Upvotes: 1

sd_dracula
sd_dracula

Reputation: 3896

The issue was that I was binding the data source manually and not at start up. The errors above have dissappeared once I initilize the data source along with the listview at start up.

Upvotes: 0

4b0
4b0

Reputation: 22323

I think you delete OnSelectedIndexChanging from aspx.cs page but you should not delete this event from your .aspx page.So its try to invoke and rage error.Same case for ItemDeleting.

Upvotes: 0

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