Blank Gridview Cell Populates "&nbsp" Into Textbox?

I've noticed that when i populate textboxes from a selected row in a gridview that if the field is blank it displays " " in the textbox.

Here is the solution I came up with. I check each cell before adding it to the textbox.

I get the feeling that I'm either doing something wrong to have this problem in the first place or that there is a better way to handle this.

protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
//// Get the currently selected row using the SelectedRow property.
GridViewRow row = GridView1.SelectedRow;
// Load data from selected row into textboxes
if (row.Cells[1].Text.Trim() != " ")
{
txtEditCust_ID.Text = row.Cells[1].Text.Trim();
}
}