Existing rows from dataGrid

shangrilla · Jan 30, 2003

I am using a dataset to populate a grid. Then using some client side javascript I decide what is the maximum # of rows that can be added to a grid.

I declare a global javascript variable 'cnt' and initialize it to 0. Say the max rows that can be added is 5. If there are no rows in the grid when it is loaded, this will work just fine. What if there are 2 rows already present in grid when it is loaded.

So my question is how can I initialize cnt to 2(rows already present in the grid before insert).

Thanks

link9 · Jan 30, 2003

You can add a label control to your page, and initialize it like this:

myLabel.text = "<script language=javascript>cnt=2;</script>"

set the enableViewState property = false, so that the value of the label doesn't persist over a postback, and therefore reset the value when the page reloads.

If you run into any issues (like the label gets rendered before you declare your cnt variable -- causing a null reference error), then just abstract the logic into a function, and call the function onLoad for your <body>

-paul

The answer to getting answered -- faq855-2992

shangrilla · Jan 30, 2003

Hi Paul:

Thanks for your reply. I do not need to initialize cnt = 2. cnt can be any number of rows already showing in the datagrid when the page is loaded.
So my question is how to get the number of rows in the grid, when the page is loaded.

Sorry if I didn't make myself clear earlier.

link9 · Jan 31, 2003

You can get the numbers of rows present by invoking the .count property on the datagrid's item collection

The answer to getting answered -- faq855-2992

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Existing rows from dataGrid

shangrilla

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link9

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shangrilla

Programmer

link9

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