Re initialize combobox

[SandyB]

When I load my form, I can set the combobox to show a blank line by writing

 

cbo1.SelectedIndex = -1

 

But when I need to re-initialize it to blank later, that same code doesn't work.

 

Why not? And how can I set it to nothing again? I also tried

 

cbo1.SelectedItem = Nothing

[Robby]

Try the Items.Clear() method.

[SandyB]

That doesn't work - I get the error message:

Cannot modify the Items collection when the DataSource property is set.

 

I have my controls bound to the data at design time,rather than in code. Do I need to unbind and rebind in the code?

[jfackler]

Change the dropdown style before you set the index to -1 and you'll get an empty combobox that is editible.

 

cmbEmployeeName.DropDownStyle = ComboBoxStyle.DropDown
cmbEmployeeName.SelectedIndex = -1

 

Jon