How to: add column to datagrid (not bound to dataset)

  • Thread starter Thread starter uknees
  • Start date Start date
U

uknees

Hi there,

I have a dataset which i want to have some of the columns bound to the
datagrid. I have all that columnstyle thingy going... except that I
want to have a column that displays a checkbox (DatagridBoolColumn)
of which the data is not taken from the dataset.

so... how can i have a datagrid that contains some columns that are
bound to a dataset and a column not bound?

Please help. Thanks
 
Hi unkness,

You'll have to create your datasource.
As a simplier solution, why don't you add a column to DataTable?

--
Miha Markic - RightHand .NET consulting & software development
miha at rthand com
www.rthand.com

uknees said:
Hi there,

I have a dataset which i want to have some of the columns bound to the
datagrid. I have all that columnstyle thingy going... except that I
want to have a column that displays a checkbox (DatagridBoolColumn)
of which the data is not taken from the dataset.

so... how can i have a datagrid that contains some columns that are
bound to a dataset and a column not bound?

Please help. Thanks



----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeed.com The #1 Newsgroup Service in the World! >100,000 Newsgroups
---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption
Click to expand...
=---
 
I tried adding this to my datatable.

ds.Tables("Bom").Columns.Add("Select", GetType(Boolean), False)

and now, the problem i am having is that when i click on the checkbox
:
-on the 1st row, it works fine
-2nd row will return an error saying that the 'Select' column is
readonly.

so, I added the code to allow this boolean Column.readonly = false

and it still returns the same error

any idea why?
 
uknees,
Don't add the expression parameter (False) to your column. All you want
is the name and type. If you want to add a default value you can then do
ds.Tables("Bom").Columns("Select").DefaultValue = False
after creating the column. Adding False for the expression value makes the
column value always False and will not allow it to be changed.

Ron Allen
uknees said:
I tried adding this to my datatable.

ds.Tables("Bom").Columns.Add("Select", GetType(Boolean), False)

and now, the problem i am having is that when i click on the checkbox
:
-on the 1st row, it works fine
-2nd row will return an error saying that the 'Select' column is
readonly.

so, I added the code to allow this boolean Column.readonly = false

and it still returns the same error

any idea why?



----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeed.com The #1 Newsgroup Service in the World! >100,000 Newsgroups
---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption
Click to expand...
=---
 
Hi Ron,

I have done what you have suggested.
ds.Tables("Bom").Columns("Select").DefaultValue = False

but, 2 questions though
- why is the checkbox greyed?
I have already set the columnstyle's AllowNull property to false.
-All the checkboxes have been checked. why?
 
Back
Top