default value in combobox

[sarang_k]

Hi all, In my c# application i.e., windows application i am using a combobox and in its collection properties i have added some data. When ever i run my application in combobox it doesn't show any default value,its shown empty until it is selected. How can i shown default value in combobox in windows application ? Thanks in advance.

[JF2015]

In the designer, you can set comboBox1.Text = "First Item"; or you simply display the first item in your collection in the e.g. form load event.

[Steven Pinto2000]

Use combobox SelectedIndex to select the default value in the combobox:cool:

[Rick van Woudenberg]

When you're application loads, or when the combobox is filled, use this :

comboBox.SelectedIndex = 0; // ( or 1,2,3 .. depending on the item you'd like to show first )

[BobJanova]

The two answers above me are correct in different cases. If the DropDownStyle is DropDown (i.e. drop/edit), set the Text property to have an initial value. If it is DropDownList, set SelectedIndex (or SelectedItem). You should do this after InitialiseComponent is called; I typically do it lower down in the form class constructor. Alternatively, if you data bind the combos, they will initialise to the initial value of the property to which they are bound.

[ambarishtv]

this code may help you.. ;)

private void loadComboBox()
{
if (this.cmb.DataSource == null)
{
this.cmb.Items.Add("Please Wait");
this.cmb.Text = "Please Wait";
this.cmb.Refresh();
}

        DataTable tbl = comboData() as DataTable;
        tbl.Rows.Add(0, "");
        cmb.DataSource = tbl;
        cmb.DisplayMember = "Name";
        cmb.ValueMember = "Id";
        cmb.SelectedValue = 0;
    }

-ambarish-