public ActionResult EditRows(Order editedOrder)
{
// Get the grid and database (northwind) models
var gridModel = new OrdersJqGridModel();
var northWindModel = new NorthwindDataContext();
// If we are in "Edit" mode
if (gridModel.OrdersGrid.AjaxCallBackMode == AjaxCallBackMode.EditRow)
{
// Get the data from and find the Order corresponding to the edited row
Order order = (from o in northWindModel.Orders
where o.OrderID == editedOrder.OrderID
select o).First<Order>();
// update the Order information
order.OrderDate = editedOrder.OrderDate;
order.CustomerID = editedOrder.CustomerID;
order.Freight = editedOrder.Freight;
order.ShipName = editedOrder.ShipName;
northWindModel.SubmitChanges();
}
if (gridModel.OrdersGrid.AjaxCallBackMode == AjaxCallBackMode.AddRow)
{
// since we are adding a new Order, create a new istance
Order order = new Order();
// set the new Order information
order.OrderID = (from o in northWindModel.Orders
select o)
.Max<Order>(o => o.OrderID) + 1;
order.OrderDate = editedOrder.OrderDate;
order.CustomerID = editedOrder.CustomerID;
order.Freight = editedOrder.Freight;
order.ShipName = editedOrder.ShipName;
northWindModel.Orders.InsertOnSubmit(order);
northWindModel.SubmitChanges();
}
if (gridModel.OrdersGrid.AjaxCallBackMode == AjaxCallBackMode.DeleteRow)
{
Order order = ( from o in northWindModel.Orders
where o.OrderID == editedOrder.OrderID
select o)
.First<Order>();
// delete the record
northWindModel.Orders.DeleteOnSubmit(order);
northWindModel.SubmitChanges();
}
return RedirectToAction("GridDemo", "Grid");
}
// This method is called when the grid requests data
public JsonResult SearchGridDataRequested()
{
// Get both the grid Model and the data Model
// The data model in our case is an autogenerated linq2sql database based on Northwind.
var gridModel = new OrdersJqGridModel();
var northWindModel = new NorthwindDataContext();
// customize the default Orders grid model with our custom settings
SetUpGrid(gridModel.OrdersGrid);
// return the result of the DataBind method, passing the datasource as a parameter
// jqGrid for ASP.NET MVC automatically takes care of paging, sorting, filtering/searching, etc
return gridModel.OrdersGrid.DataBind(northWindModel.Orders);
}
private void SetUpCustomerIDSearchDropDown(JQGrid ordersGrid)
{
// setup the grid search criteria for the columns
JQGridColumn customersColumn = ordersGrid.Columns.Find(c => c.DataField == "CustomerID");
customersColumn.Searchable = true;
// DataType must be set in order to use searching
customersColumn.DataType = typeof(string);
customersColumn.SearchToolBarOperation = SearchOperation.IsEqualTo;
customersColumn.SearchType = SearchType.DropDown;
// Populate the search dropdown only on initial request, in order to optimize performance
if (ordersGrid.AjaxCallBackMode == AjaxCallBackMode.RequestData)
{
var northWindModel = new NorthwindDataContext();
var searchList = from customers in northWindModel.Customers
select new SelectListItem
{
Text = customers.CustomerID,
Value = customers.CustomerID
};
customersColumn.SearchList = searchList.ToList<SelectListItem>();
customersColumn.SearchList.Insert(0, new SelectListItem { Text = "All", Value = "" });
}
}
private void SetUpCustomerIDEditDropDown(JQGrid ordersGrid)
{
// setup the grid search criteria for the columns
JQGridColumn customersColumn = ordersGrid.Columns.Find(c => c.DataField == "CustomerID");
customersColumn.Editable = true;
customersColumn.EditType = EditType.DropDown;
// Populate the search dropdown only on initial request, in order to optimize performance
if (ordersGrid.AjaxCallBackMode == AjaxCallBackMode.RequestData)
{
var northWindModel = new NorthwindDataContext();
var editList = from customers in northWindModel.Customers
select new SelectListItem
{
Text = customers.CustomerID,
Value = customers.CustomerID
};
customersColumn.EditList = editList.ToList<SelectListItem>();
}
}
