I have an application that has in memory tables which are related. I
have recently upgraded to 2003 MSDN - which seems to have thrown an
error which I did not have before.
Here is the scenario...

I have a few issues with databinding.
First of all, I read so much about how painful it seemed to be for
people that I initially started out not using it. As in, if I do
things manually, at least I know what is going on.

I have been unable to google the right keywords to this hopefully easy
answer.
I bind a combobox:
       With cboOperator

How do i set a row readonly after applying custom table styles and binding
to a datasource??
i need to set particular rows readonly, but i do not know what they are
until i have loaded data from my tables.

I already sent this question however I can't seem to find it so I'm gonna
submit it again.
I'm populating .dbf and access tables into my datasets.  These files are
coming from clients so the layouts always change therefore I can't rely on

I'm using a DataGrid with a master/detail setup. I allow navigation, so the
grid has the little "plus boxes" and the link to the child table. Can
anybody tell me how to setup custom  GridColumnStyles. I try the various
DataSources such as the relation and so forth, but I can only ...

I have a picturebox on my windows form. In this picturebox I'm going to
keeppictures of the employees. I can save the images to my access table
(tblPhoto.PhotoObject)
I want to be able to populate my picturebox with the image of the employee.

I have a dataTable with only one unique record and want to bind this to
a couple of textboxes in a form, so that when a user changes a value,
it's eventually reflected back to the database.
The dataset I use is 'untyped' - so I'm not able to do a typed databind,

[Reposted here as probably more appropriate than
"microsoft.public.vb.controls.databound"]
Could anyone help with the following scenario?
- I have a class that exposes a collection (a Hashtable actually) as a

I am using C# with VS Studio 2003.
I would like to display in one DataGrid control (Windows Forms) a
combination of fields that are selected from 2 tables.
My questions are:

I am using Visual Studio 2003. I was wondering how can I display only some of the columns of a dataset in a datagrid. For example, if my dataset has columns A,B,C,D and I want to display only columns A and C.
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Posted by a user from .NET 247 (http://www ...

Hi, All
I have a datagrid binded to a datasource. I want to display a lookup field
in the same grid. I also want to display a calculated field in datagrid i.e.
Qty x Rate (Amount). How is it possible.

Anybody knows how to bind enumerated type to a data bound combo box?
I tried this:
this.comboBox1.DataSource = Enum.GetValues(typeof(CheckType));
this.comboBox1.DataBindings.Add("SelectedItem",this.objtest.Tables["Attribute"],"CheckType");

I have a typed DataSet which holds my application data. I use it for data
binding in several forms. When setting the DataSet as a data source in my
form the UI designer generates code which creates a new instance of my
DataSet. So each form is referring to an own instance which's ...

When I try to bind a checkbox and the data for the field is null I get an
error 'Object cannot be cast from DBNull to Other types'.  Also when I use
AddNew I also get the same error.  I must allow for 0, 1 or null data.
My code is as follows: