Marc,

I'm not 100% sure exactly what you're trying to get at, but I'll give it a shot. What I'm not clear about in your post is what "cols" is. Here's a snippet of code that I have used in my TextBox sub-class (sorry, it's C#, so I hope you can follow it):

// oBinding is simply what the TextBox is bound to
// Me.DataBindings.Item(0) in your example

int nRow = this.BindingContext[this.oBinding.DataSource].Position;
string field = this.oBinding.BindingMemberInfo.BindingField;

DataTable table = null;
if (this.oBinding.DataSource is DataView)
{
	nRow = CommonFunctions.IndexOfRow((DataView)this.oBinding.DataSource, nRow);
	table = ((DataView)this.oBinding.DataSource).Table;
}
else
	if (this.oBinding.DataSource is DataTable)
		table = (DataTable)this.oBinding.DataSource;

It appears that you're also talking about a sub-classed control, I hope I am correct in that assumption. Since your question appears to be about whatever this "cols" thing is, I'm not sure if the above helps or not.

If not, perhaps you can rephrase your question or post some more code.

~~Bonnie


>I have found that
>

>Me.DataBindings.Item(0).BindingMemberInfo.BindingField
>

>
>gives me the name of the field a control is bound to.
>
>

>Dim o As DataColumn = cols(Me.DataBindings.Item(0).BindingMemberInfo.BindingField)
>

>
>gets me the column, or the field that I am looking for.
>
>cols is passed to the method from the form's dataset.datatable (I guess).
>
>Is there a way for a textbox to let it's findform produce these (dataset.datatable).cols?