Display Default text on combobox after binding.

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Hello,
I have a combobox bound to a WCF service that populates a list of reports.
I don't want to display an item immidiately, I want the selected index to say
"Please select a report from list".
So I created an item and added it to the ComboBox.
Items List after I bound the control as

comboBox1.ItemsSource = myData;
                    comboBox1.DisplayMemberPath = "Product_Name";
                    comboBox1.SelectedValuePath = "Product_Name";
                    comboBox1.SelectedValue = "ProdID";

                    ComboBoxItem item = new ComboBoxItem();
                   
                    item.Content = "Select";
                    item.Tag = "1";

                    comboBox1.Items.Add(item);
                    //comboBox1.Items.Insert(0, item);

But it gives error message that "operation not supported on read-only collection"
Is there a way to display default text on a combobox?

Thanks in advance.

Posted 27-Jul-11 20:52pm

Member 8100743

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2 solutions

Solution 2

Dear Brother,
Simplest way of doing so is following:

Write the following code on the form containing your combobox.

private void frmMainForm_Load(object sender, EventArgs e)
{
cmbDepartment.SelectedIndex = 0;
cmbUniversity.SelectedIndex = 0;
}
Also make sure u have written "[Select Any]" on the first menu in the combobox.
I 've devised this myself and found it perfect.

Posted 11-Mar-12 2:56am

MuhammadSuleman761

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Member 8100743 · Accepted Answer · 2011-07-27T21:20:00

Try this, i have tried it and working well

List<Products> result1 = new List<Products>();

                    Products obj = new Products();

                    obj.ProdID = 0;

                    obj.Product_Name= "Select";
                    result1.Add(obj);
                    result1.AddRange(myData);

                    comboBox1.ItemsSource = result1;

                    comboBox1.DisplayMemberPath = "Product_Name";
                    comboBox1.SelectedValuePath = "Product_Name";
                    comboBox1.SelectedValue = "ProdID";

                    comboBox1.SelectedIndex = 0;