Mark Nalevanko
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Mark Nalevanko
asked on 01 Dec 2009, 10:58 PM
Hello,
I have a grid setup with both bound and unbound columns so in order to add new rows to the grid programmatically I'm using the NewRow() and Add() methods on the grid's row collection instead of accessing the underlying datasource. By going this route though, I've noticed it's taking on the order of minutes to fill up 500 rows, which seems really sluggish to me. Am I doing something wrong here? I'm testing with the trial version for download currently.
Private Sub Form1_Load(...)
Me.RadGridView1.BeginEdit()
For i as Integer = 1 to 500
Dim newrow as GridViewRowIndo = Me.RadGridView1.Rows.NewRow()
' update a few row cells here....
Me.RadGridView1.Rows.Add(newrow)
Next
Me.RadGridView1.EndEdit()
End Sub
Thanks,
Mark
I have a grid setup with both bound and unbound columns so in order to add new rows to the grid programmatically I'm using the NewRow() and Add() methods on the grid's row collection instead of accessing the underlying datasource. By going this route though, I've noticed it's taking on the order of minutes to fill up 500 rows, which seems really sluggish to me. Am I doing something wrong here? I'm testing with the trial version for download currently.
Private Sub Form1_Load(...)
Me.RadGridView1.BeginEdit()
For i as Integer = 1 to 500
Dim newrow as GridViewRowIndo = Me.RadGridView1.Rows.NewRow()
' update a few row cells here....
Me.RadGridView1.Rows.Add(newrow)
Next
Me.RadGridView1.EndEdit()
End Sub
Thanks,
Mark
1 Answer, 1 is accepted
0
Hi Mark Nalevanko,
This is a known issue in RadGridView. In the next major version of RadGridView we will introduce a new API for the update logic -- BeginUpdate/EndUpdate methods for GridViewTemplate which are to be used to suspend update logic during the data operations such as filtering, sorting, and grouping. UI updates will also be suspended.
Currently, you can add all your rows in the underlying DataSource IList object and then in the Load event handler you can set the DataSource of RadGridView and use your iterator to fill only the unbound data in the rows.
Kind regards,
Julian Benkov
the Telerik team
Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.
This is a known issue in RadGridView. In the next major version of RadGridView we will introduce a new API for the update logic -- BeginUpdate/EndUpdate methods for GridViewTemplate which are to be used to suspend update logic during the data operations such as filtering, sorting, and grouping. UI updates will also be suspended.
Currently, you can add all your rows in the underlying DataSource IList object and then in the Load event handler you can set the DataSource of RadGridView and use your iterator to fill only the unbound data in the rows.
Kind regards,
Julian Benkov
the Telerik team
Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.