Setting Visibility on Gridview items after they are created?

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jc - 11 Dec 2007 22:28 GMT

I have a situation where I need to condition gridview item visibilty
after they've been created and after a textbox on page has a value.
What's the best way to do this in VB.NET? Any code sample?

I would imagine i have to loop through the control to do this.

Seems like it might be messy.

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Michael Nemtsev - 11 Dec 2007 23:00 GMT

I suppose the looping of control hierarchy is the single way,
because your items are inside other control and u need find them somehow

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WBR, Michael Nemtsev [.NET/C# MVP].
Blog: http://spaces.live.com/laflour

> I have a situation where I need to condition gridview item visibilty
> after they've been created and after a textbox on page has a value.
[quoted text clipped - 3 lines]
>
> Seems like it might be messy.

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Eliyahu Goldin - 12 Dec 2007 09:19 GMT

Do it in the PreRender event.

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Eliyahu Goldin,
Software Developer
Microsoft MVP [ASP.NET]
http://msmvps.com/blogs/egoldin
http://usableasp.net

>I suppose the looping of control hierarchy is the single way,
> because your items are inside other control and u need find them somehow
[quoted text clipped - 6 lines]
>>
>> Seems like it might be messy.

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jc - 12 Dec 2007 11:57 GMT

Does anybody have any vb.net example of looping through the gridview
and setting visibility of an item after it's been built?

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gnewsgroup - 12 Dec 2007 13:38 GMT

> Does anybody have any vb.net example of looping through the gridview
> and setting visibility of an item after it's been built?

I think you can do something like this (in C#, I am not good at VB):

foreach (GridViewRow gvr in MyGridView.Rows)
{
// If you know the column index, you can do:
gvr.Cells[2].Visible = false;
// Or if you want to make some control in that cell
invisible:
TextBox myTextBox = (TextBox)gvr.FindControls("myTextBox");
myTextBox.Visible = false;
}

The code hasn't been tested, but you get the idea.

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gnewsgroup - 12 Dec 2007 13:56 GMT

> Does anybody have any vb.net example of looping through the gridview
> and setting visibility of an item after it's been built?

It's been answered here:

http://groups.google.com/group/microsoft.public.dotnet.framework.aspnet/browse_t
hread/thread/2e26393b256aff43/c923a8cca6231531?hl=en#c923a8cca6231531

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Setting Visibility on Gridview items after they are created?

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