C# Combobox SelectedIndexChanged - Combobox clears the selection?

[somacore]

Quick question,

Is there a way to preserve the value in my combobox when it fires a SelectedIndexCh anged event?

Right now I have 4 comboboxes all linked together with an SQL query:

Site
City
Manager name
Phone number

When I choose the Site name, the event fires and populates the other three boxes, but clears out the Site name box. Why is that?

[mikeyeli]

is this a web application or winform application?

[somacore]

is this a web application or winform application?

Sorry, this is a winform app.

[mikeyeli]

this is a weird behaviour could you post some code?

[somacore]

This is the code I'm using to trigger the combobox update.

private void comboBox55_SelectedIndexChanged(object sender, EventArgs e)
        {
            this.hD__Site_Name_DataTableAdapter.FillBySite(this.dataSet2.HD__Site_Name_Data, comboBox55.Text);
            this.hD__Requestor_ProfileTableAdapter.FillByPerson(this.dataSet2.HD__Requestor_Profile, comboBox55.Text);
        }

Combobox55 clears after updating the other two boxes with the correct information.