Set Enabled or Visible on gridview cell contols?

#1 09-07-2008, 05:50 PM

Can I set the Enabled or Visible properties of the controls (textboxes,
checkboxes) displayed by default in edit mode, depending on the value of some
other column? Or must I convert the column to a template column first? What I
mean is, I can correctly get the value of the default textbox in a gridview
cell when edited, using:

s = CType(grd_users.Rows(index).Cells(4).Controls(0), TextBox).Text

but I can't set that textbox to disabled or hidden using

CType(grd_users.Rows(index).Cells(4).Controls(0), TextBox).enabled=false or
CType(grd_users.Rows(index).Cells(4).Controls(0), TextBox).visible=false

although I have intellisence for them.
The message I get is:
"Specified argument was out of the range of valid values. Parameter name:
index"

Why?

#2 09-07-2008, 05:57 PM

Also, how can I change the ReadOnly property of a field, when it's about to
enter the edit mode?

#3 09-08-2008, 04:50 AM

You must've been looking in different places.

In the same place, if you don't get an exception because of index in
s = CType(grd_users.Rows(index).Cells(4).Controls(0), TextBox).Text

you can't get it in
CType(grd_users.Rows(index).Cells(4).Controls(0), TextBox).enabled=false

since index is used before you get to Enabled property.

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

"Savvoulidis Iordanis" <SavvoulidisIordanis@discussions.microsoft.com> wrote
in message news:45223B70-51F2-41B4-AD74-AC69CE5A942A@microsoft.com...
> Can I set the Enabled or Visible properties of the controls (textboxes,
> checkboxes) displayed by default in edit mode, depending on the value of
> some
> other column? Or must I convert the column to a template column first?
> What I
> mean is, I can correctly get the value of the default textbox in a
> gridview
> cell when edited, using:
>
> s = CType(grd_users.Rows(index).Cells(4).Controls(0), TextBox).Text
>
> but I can't set that textbox to disabled or hidden using
>
> CType(grd_users.Rows(index).Cells(4).Controls(0), TextBox).enabled=false
> or
> CType(grd_users.Rows(index).Cells(4).Controls(0), TextBox).visible=false
>
> although I have intellisence for them.
> The message I get is:
> "Specified argument was out of the range of valid values. Parameter name:
> index"
>
> Why?

#4 09-08-2008, 04:57 AM

RowEditing event should be good for this.

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

"Savvoulidis Iordanis" <SavvoulidisIordanis@discussions.microsoft.com> wrote
in message news:C337A7EE-DBCD-4982-B5DF-C1694DB7DF46@microsoft.com...
> Also, how can I change the ReadOnly property of a field, when it's about
> to
> enter the edit mode?

#5 09-09-2008, 02:30 AM

What I need is a code excerpt. I couldn't manage to write it properly. I
can't event get correct object reference to have intellisence for .Readonly

#6 09-09-2008, 02:33 AM

Boh the following statements are used in RowCommand event. The 2nd one gives
the exception

s = CType(grd_users.Rows(index).Cells(4).Controls(0), TextBox).Text

CType(grd_users.Rows(index).Cells(4).Controls(0), TextBox).enabled=false

Why?

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