Initialize a value in comboBox in C#

Question

I realize that my comboBox is always empty when program start. I have to click the arrow beside to choose a value. How do we do it so that the comboBox will show a value when the program start?

Answer 1

There are the following 4 properties that you can set:

// Gets or sets the index specifying the currently selected item.
comboBox1.SelectedIndex = someIndex;  //int

// Gets or sets currently selected item in the ComboBox.
comboBox1.SelectedItem = someItem; // object

// Gets or sets the text that is selected in the editable portion of a ComboBox.
comboBox1.SelectedText = someItemText; // string

// Gets or sets the value of the member property specified by the ValueMember property. 
comboBox1.SelectedValue = someValue; // object

Comment lines straight from MSDN: http://msdn.microsoft.com/en-us/library/system.windows.forms.combobox.aspx

Answer 2

If you have a combo box and want to set it's Data Source you may do it like this:

 string[] items = new string[]{"Ram","Shyam"};
    comboBox1.DataSource = items;
    comboBox1.SelectedIndex = 0;

So try to set the SelectedIndex to first index.