[英]How to i can refresh value in combobox when added , deleted data in C# - winform?
我创建 void LoadData 并在创建、更新、查看、删除时调用它
void LoadData() {
OleDbConnection conn = new OleDbConnection();
conn.ConnectionString = @"Provider=Microsoft.Jet.Oledb.4.0;Data Source = D:\Project\DataKTHT.mdb";
conn.Open();
OleDbDataAdapter ad = new OleDbDataAdapter("select * from table", conn);
DataTable tb = new DataTable();
ad.Fill(tb);
dataGridView_MonHoc.DataSource = tb;
cboMaMon.DataSource = tb;
cboMaMon.DisplayMember = "TenMon";
cboMaMon.ValueMember = "MaMon";
}
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