//user clicks on Add product
private void btnAdd_Click(object sender, EventArgs e)
{
var addModifyProductForm = new frmAddorModify()
{
AddProduct = true // initializer
};
DialogResult result = addModifyProductForm.ShowDialog(); //display model
if (result == DialogResult.OK) // user clicked Accept on the second form
{
try
{
selectedProduct = addModifyProductForm.Product; // record product from the second
// form as the current product
context.Products.Add(selectedProduct);
context.SaveChanges();
DisplayProducts();
}
catch (DbUpdateException ex)
{
HandleDatabaseError(ex);
}
catch (Exception ex)
{
HandleGeneralError(ex);
}
}
}
//user clicks on the modify button to update existing record
private void btnModify_Click(object sender, EventArgs e)
{
var addModifyProductForm = new frmAddorModify()
{ // object initializer
AddProduct = false,
Product = selectedProduct
};
DialogResult result = addModifyProductForm.ShowDialog(); // display modal
if (result == DialogResult.OK) // user clicked OK on the second form
{
try
{
selectedProduct = addModifyProductForm.Product; // new data
context.SaveChanges();
DisplayProducts();
}
catch (DbUpdateException ex)
{
HandleDatabaseError(ex);
}
catch (Exception ex)
{
HandleGeneralError(ex);
}
}
//ModifyProduct();
}