當(dāng)使用SelectedIndexChanged時凑阶,ValueMember在DataSource前進(jìn)行賦值日裙,
comcobox.ValueMember = "value";
comcobox.DisplayMember = "name";
comcobox.DataSource = dt1;
當(dāng)使用SelectedValueChanged時玉掸,ValueMember在DataSource后進(jìn)行賦值。
comcobox.DataSource = dt1;
comcobox.ValueMember = "value";
comcobox.DisplayMember = "name";