datagrid, dataadapters, and setdatabinding

[hillscottc]

I have two DataAdapters....1)daStandard does a SELECT *, and
2)daDuplicates uses a stored proc which returns only rows with some
duplicate data.

Problem is, when I butRefresh_Click and I have selected ALL, I am never
able to refresh the data to the DUPS subset of data.
Every click returns ALL records. If I choose DUPS the first time it
works once, but once I do ALL I can no longer get just the DUPS.
I think I am not clearly understanding the relationship betwen
DataAdapter, DataGrid, and SetBinding.

Any help?
protected void BindGrid(Resources.Operations op)
{

switch (op)
{
case Resources.Operations.DUPS :

daDuplicates.Fill(mP3Library1, "MainLibrary");
break;
case Resources.Operations.ALL :
default:

daStandard.Fill(mP3Library1, "MainLibrary");
break;

}
dataGrid1.SetDataBinding(mP3Library1, "MainLibrary");
}
private void butRefresh_Click(object sender, System.EventArgs e)
{
if (checkDups.Checked)
{
BindGrid(Resources.Operations.DUPS);
}
else
{
BindGrid(Resources.Operations.ALL);
}

}