Link ComboBox with database in window form

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Here i will explain how to Link combobox with database. Before this o explained that How to use combobox.

Step(1) :- Form with ComboBox
Drag and down a combobox from tool Box.

Step(2) :- Coding
Now at coding section make a function which is connected with database. And call this method in constructor.

Void fillcombo()

{

    string str = "server = MUNESH\\SQL2008R2;Database=datastore;UID=sa;Password=123;";

    SqlConnection con = new SqlConnection(str);

    string query = "select * from tablename";

    SqlCommand cmd = new SqlCommand( query,con); 

    sqldatareader dbr;

    try

    {

        con.open();

        dbr = cmd.executereader();

        while(dbr.read())

        {

           string sname = (string) myreader["name"];; //name is coming from database

           combobox1.items.Add(sname);

         }

         catch(execption es)

         {

              messagebox.show(es.message);

         } 

    }

}

Step(3) :- Output

When you run your application the data(we are fatching name from database) will be store in combobox.

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