public static NICDBEntities getNicdbContext()
{
if (nicdbContext == null)
{
nicdbContext = new NICDBEntities();
}
return nicdbContext;
}
private void Form1_Load(object sender, EventArgs e)
{
nicdbContext = new NICDBEntities();
var metalTypeQuery = from m in nicdbContext.MetalTypes
orderby m.id
select m;
try
{
// Bind the ComboBox control to the query,
// which is executed during data binding.
// To prevent the query from being executed multiple times during binding,
// it is recommended to bind controls to the result of the Execute method.
metalTypeBindingSource.DataSource = ((ObjectQuery)metalTypeQuery).Execute(MergeOption.AppendOnly);
metalTypePanel1.bindingSource1.DataSource = ((ObjectQuery)metalTypeQuery).Execute(MergeOption.AppendOnly);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
this.reportViewer1.RefreshReport();
}
