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Horizontal scrolling very slow...

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Hazzard
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Hazzard asked on 18 Dec 2008, 08:13 PM
The vertical scrollbar is very responsive.
The horizontal scrollbar is very very sluggish. Unacceptable to any user. There are only 14 columns in the resultset being returned from a SQL Server sproc via a SqlDataAdapter.  There are 53 rows in the resultset.
What could be the reason for that?
Thank you,
Greg
        <telerik:RadGrid ID="RadGrid1" runat="server" BorderColor="Black"   
            DataSourceID="SqlDataSource1" OnColumnCreated="RadGrid1_ColumnCreated"   
            AutoGenerateColumns="False" GridLines="None" > 
         <ClientSettings> 
           <Scrolling AllowScroll="True" UseStaticHeaders="True" 
                  FrozenColumnsCount="1">  
           </Scrolling> 
         </ClientSettings> 

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Georgi Krustev
Telerik team
answered on 20 Dec 2008, 03:50 PM
Hi Greg,

The problem with the low performance is due of the capability of the internet browser that you are using. When you have allowed scrolling with frozen columns, horizontal moving of the columns needs some JavaScript code to be executed, which hides each column next to the frozen one. If you make a test with your page on FireFox you will find out that the horizontal scrolling has better response, than the same page rendered on IE. Even that IE7 executes JavaScript much better than IE6, there is still partial delays that can be observed.

We can suggest you reduce the number of columns as much as possible or disable frozen columns (if applicable) when you are using IE 6 and the performance is very important for you.

Kind regards,
Georgi Krustev
the Telerik team

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Hazzard
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answered on 22 Dec 2008, 05:00 PM
Thank you Georgi.
Firefox is deflnitely more 'snappy' I discovered.
I'll experiment given your advice.
With appreciation.
Greg
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