Add an item (“---Please select---”) to a combo box with a data source

Question

I have a combo box with data source but I want to add an item.

I want it to look like this.

----Please select one---     //the item I want to add 
Tokyo                        //the items that came from the database
Osaka                        //the items that came from the database
Boston                       //the items that came from the database
Manila                       //the items that came from the database

How do I remedy this?

Thanks

Answer 1

You need to add the "please select" to the collection that you are binding to before setting the datasource, for example...

var countries = GetCountriesFromDatabase(); // Get countries from the database

countries.Insert(0, "----Please select one---"); // Insert your please select item

Combobox1.DataSource = countries; // Assign the datasource after inserting the item

Answer 2

Combobox1.DataSource = Yourdatasource; // this is your datasource
Combobox1.Items.Add("----Please select one---");