private void btnUnloadDBC_Click(object sender, EventArgs e) { try { UInt32 ADBCHandle = Convert.ToUInt32(tBUnloadDBCHandle.Text); if (CheckResultOK(TsMasterApi.tsdb_unload_can_db(ADBCHandle))) { Log("Log DBC Success!"); } } catch { MessageBox.Show("DBC Handle is UINT32 data type", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning); } }