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[Solved] Find a custom control in dynamic Grid

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Grid

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guillaume.lebel asked on 20 May 2009, 08:02 PM

Hi,

I have a grid that i created dynamicly everyting i mean my datasource, my grid structure and every item in my grid are create in code behind for specific need. Everything is working fine when i load my grid.

The thing is i've created by code behind 2 other control that i add in my header item (imagebutton and a textbox).

I've add a javascript on my image button that is suppose to copy in all my item the value entered before in the header textbox.
But i'm not getting a radtextbox but simply an imput. When i click in any cell that i changed the value before, it change back to the first value.

    
                    function OnCopyResult(textBoxId, columnIndex)  
        
                    {  
        
                        var grid = $find("<%= RadGridLocalTraining.ClientID %>");  
        
                        var masterTable = grid.get_masterTableView();  
        
                        var headerTextBox = masterTable.HeaderRow.cells[columnIndex].firstChild.nextSibling.nextSibling.firstChild;  
        
                        var value = headerTextBox.value;  
        
                        var itemsCount = grid.get_masterTableView().get_dataItems().length;  
        
                        for(i = 0; i < itemsCount; i++)  
        
                        {  
        
                            cell = masterTable.getCellByColumnUniqueName(masterTableView.get_dataItems()[i],masterTableView._columnsInternal[columnIndex].get_uniqueName());  
        
                            var cellTextBox = cell.firstChild.firstChild;  
        
                            cellTextBox.value = value;  
        
                        }  
        
                    }

There's no property set_value and maybye this why i can't change the value correctly.

Thanks for you help!

Guillaume

10 Answers, 1 is accepted

answered on 21 May 2009, 02:56 PM

I've tried to get the input with
     cell.getElementsByTagName('input').item()
instead of
     cellTextBox = cell.firstChild.firstChild;

I'm able to get the value but i can't change it i've tried to say
    cellTextBox.value = x;
But when i click in the cell the value is going back to his old one. I forgot to mention that i'm using radMaskedTextBox and RadNumericTextBox in my grid. Both control having the same problem.

Thanks for your help!

Guillaume

Accepted

answered on 25 May 2009, 02:27 PM

copyvaluefromheaderbox.zip

Hello Guillaume,

Please, review the attached sample for an example of how to implement this functionality and let us know if you need further assistance.

Best Regards,
Tsvetoslav
the Telerik team

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answered on 26 May 2009, 12:37 PM

Thx Tsvetoslav for you response it works rly well.

But i'm having an other problem regarding the renderring when the page load. With all these items template the page take a rly long time for the page to finish loading. I've tried with 15 rows and 10 columns for approximatly 150 radMaskedTextBox or NumericTextBox. The page i showing up correctly but the thing is i can't do anything in it cause the radcontrol aren't all render. It take atleast 5 min for the page to be load.

When i tried with normal asp textbox take less than 10 sec to load.

Most of the times the grid will have between 100 and 250 items. Is there a way to have the page loading faster with the control??

Thx again for your time!

answered on 27 May 2009, 11:26 AM

Hello Guillaume,

If you are using an excel like grid, it means that you are putting all rows in edit mode. Under this circumstance, there will be a lot of controls loading on initial page load which considerably increase the mark-up rendered in your browser. This is especially true if the controls rendered are our rad controls since they are richer in functionality and necessarily produce more mark-up on the client.

I'd suggest that you review the following links on how to optimize the performance of RadGrid:

http://www.telerik.com/products/aspnet-ajax/resources/top-performance.aspx
http://www.telerik.com/help/aspnet-ajax/grdviewstatereductiontechniques.html
http://www.telerik.com/help/aspnet-ajax/grdsavinggridviewstateinsession.html
http://www.telerik.com/help/aspnet-ajax/grdiememoryleaks.html

as well as the online examples from the 'Performance' section of the RadGrid QSF which demonstrate how to realize in practice the above-mentioned optimization techniques.

As for your second question, could you give more details on the issue (what kind of toolbar are you trying to click) and even send us a test project which will give us the opportunity to take a closer look at the problem.

Thank you.

Best regards,
Tsvetoslav
the Telerik team

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answered on 28 May 2009, 03:53 PM

Hi Tsvetoslav,

First of all thx for your response. About the toolbar i talked earlier, i'm using a RadToolBar, but... i also try to launch the event on other control like asp:button and it does the same thing; my browser freeze and stop running. when there's no record my event is launching correctly.

I've tried to debug my script line by line and the application stop working right after the post back event i called.

Thx again!!

Guillaume

answered on 29 May 2009, 01:40 PM

excel-like-with-radinput.zip

Hi Guillaume,

Please, refer to my answer in the support ticket. For the benefit of other people that might find their way to this forum thread, I'd like to point out that indeed the problem is reproducible and the solution to it involves upgrading to the latest version of the controls since it involves some important fixes and optimizations to the RadInputManager.

I am also attaching the sample sent through the support ticket.

All the best,
Tsvetoslav
the Telerik team

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