private bool RebindUI(bool saveObject, bool rebind)
{
// disable events
ProjectBindingSource.RaiseListChangedEvents = false;
VendorsBindingSource.RaiseListChangedEvents = false;
try
{
// unbind the UI
UnbindBindingSource(VendorsBindingSource, saveObject, false);
UnbindBindingSource(ProjectBindingSource, saveObject, true);
VendorsBindingSource.DataSource = ProjectBindingSource;
// save or cancel changes
if (saveObject)
{
Project.ApplyEdit();
try
{
Project = Project.Save();
}
catch (DataPortalException ex)
{
MessageBox.Show(ex.BusinessException.ToString(),
"Error saving", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return(false);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(),
"Error Saving", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return(false);
}
}
else
{
Project.CancelEdit();
}
return(true);
}
finally
{
// rebind UI if requested
if (rebind)
{
BindUI();
}
// restore events
ProjectBindingSource.RaiseListChangedEvents = true;
VendorsBindingSource.RaiseListChangedEvents = true;
if (rebind)
{
// refresh the UI if rebinding
ProjectBindingSource.ResetBindings(false);
VendorsBindingSource.ResetBindings(false);
}
}
}
public override void btnAddNew_Click(object sender, EventArgs e)//新增
{
try
{ VendorsBindingSource.AddNew(); }
catch (Exception ex)
{ MessageBox.Show(ex.Message); }
this.vendorsDataGridView.Refresh();
ReadOnly = false;
setReadOnly();
}
public override void btnLast_Click(object sender, EventArgs e)//末筆
{
VendorsBindingSource.MoveLast();
}
public override void btnNext_Click(object sender, EventArgs e)//次筆
{
VendorsBindingSource.MoveNext();
}
public override void btnPrior_Click(object sender, EventArgs e)//前筆
{
VendorsBindingSource.MovePrevious();
}
public override void btnSaveChange_Click(object sender, EventArgs e)//儲存
{
VendorsBindingSource.EndEdit();
this.SSEntities.SaveChanges();
ResetVendorsData();
}
public override void btnCancelEdit_Click(object sender, EventArgs e)//取消
{
VendorsBindingSource.CancelEdit();
ResetVendorsData();
}
