Question

i have a combobox whose datasource is a datatable. i need to loop through the items in the combobox, but how would i do this? i need to be able to convert each object of type ‘System.Data.DataRowView’ to string. any advice greatly appreciated!@

Answer 1

Based on your recent questions, it sounds like you are trying to figure out how to find or set the selected item in the combobox based on the text displayed in the item. I am not exactly sure how you have things set up, but please look at the following code and see if it helps:

private void button1_Click(object sender, EventArgs e)
{
    DataTable dt = new DataTable();
    dt.Columns.Add("ID", typeof(int));
    dt.Columns.Add("Name", typeof(string));

    dt.Rows.Add(1, "A");
    dt.Rows.Add(2, "B");
    dt.Rows.Add(3, "C");

    comboBox1.DataSource = dt;
    comboBox1.DisplayMember = "Name";
    comboBox1.ValueMember = "ID";

    // use SelectedValue to select the item with ID == 2
    comboBox1.SelectedValue = 2;

    // use FindStringExact() to find the index of text displayed in the item
    comboBox1.SelectedIndex = comboBox1.FindStringExact("C");
}

and using a combobox as set up above, you can get the text of the display member like this:

private void button2_Click(object sender, EventArgs e)
{
    foreach (var item in comboBox1.Items)
        MessageBox.Show(((DataRowView)item)["Name"].ToString());
}