private void Show_Form()
{
// Shows the "Customer Labels Dialog" form in Northwind.mdb
// and manipulates controls on the form.
Access.Application oAccess = null;
Access.Form oForm = null;
Access.Controls oCtls = null;
Access.Control oCtl = null;
string sDBPath = null; //path to Northwind.mdb
string sForm = null; //name of form to show
// Enable exception handler:
try
{
sForm = "Customer Labels Dialog";
// Start a new instance of Access for Automation:
oAccess = new Access.ApplicationClass();
// Make sure Access is visible:
if (!oAccess.Visible)
{
oAccess.Visible = true;
}
// Determine the path to Northwind.mdb:
sDBPath = oAccess.SysCmd(Access.AcSysCmdAction.acSysCmdAccessDir,
moMissing, moMissing).ToString();
sDBPath = sDBPath + @"Samples\Northwind.mdb";
// Open Northwind.mdb in shared mode:
oAccess.OpenCurrentDatabase(sDBPath, false, "");
// If using Access 10.0 object library, use this instead:
//oAccess.OpenCurrentDatabase(sDBPath, false, null);
// Close any forms that Northwind may have opened:
while (oAccess.Forms.Count > 0)
{
oForm = oAccess.Forms[0];
oAccess.DoCmd.Close(Access.AcObjectType.acForm,
oForm.Name, Access.AcCloseSave.acSaveNo);
NAR(oForm);
oForm = null;
}
// Select the form name in the database window and give focus
// to the database window:
oAccess.DoCmd.SelectObject(Access.AcObjectType.acForm, sForm, true);
// Show the form:
oAccess.DoCmd.OpenForm(sForm, Access.AcFormView.acNormal, moMissing,
moMissing, Access.AcFormOpenDataMode.acFormPropertySettings,
Access.AcWindowMode.acWindowNormal, moMissing);
// Use Controls collection to edit the form:
oForm = oAccess.Forms[sForm];
oCtls = oForm.Controls;
// Set PrintLabelsFor option group to Specific Country:
oCtl = (Access.Control)oCtls["PrintLabelsFor"];
object[] Parameters = new Object[1];
Parameters[0] = 2; //second option in option group
oCtl.GetType().InvokeMember("Value", BindingFlags.SetProperty,
null, oCtl, Parameters);
NAR(oCtl);
oCtl = null;
// Put USA in the SelectCountry combo box:
oCtl = (Access.Control)oCtls["SelectCountry"];
Parameters[0] = true;
oCtl.GetType().InvokeMember("Enabled", BindingFlags.SetProperty,
null, oCtl, Parameters);
oCtl.GetType().InvokeMember("SetFocus", BindingFlags.InvokeMethod,
null, oCtl, null);
Parameters[0] = "USA";
oCtl.GetType().InvokeMember("Value", BindingFlags.SetProperty,
null, oCtl, Parameters);
NAR(oCtl);
oCtl = null;
// Hide the Database Window:
oAccess.DoCmd.SelectObject(Access.AcObjectType.acForm, sForm, true);
oAccess.RunCommand(Access.AcCommand.acCmdWindowHide);
// Set focus back to the form:
oForm.SetFocus();
// Release Controls and Form objects:
NAR(oCtls);
oCtls = null;
NAR(oForm);
oForm = null;
// Release Application object and allow Access to be closed by user:
if (!oAccess.UserControl)
{
oAccess.UserControl = true;
}
NAR(oAccess);
oAccess = null;
}
catch (Exception e)
{
MessageBox.Show(e.Message);
// Release any Access objects and quit Access due to error:
NAR(oCtl);
oCtl = null;
NAR(oCtls);
oCtls = null;
NAR(oForm);
oForm = null;
try // use try..catch in case oAccess is not set
{
oAccess.Quit(Access.AcQuitOption.acQuitSaveNone);
}
catch { }
NAR(oAccess);
oAccess = null;
}
}
