I have customized my table view cell accessory with button. Everything went fine until event handler.
Here is my code.
[EDIT]
public class ProductTableSource: UITableViewSource
{
protected List<Product> tableItems = new List<Product> ();
protected string cellIdentifier = "producdetailscell";
private RootViewController controller;
protected Transaction transaction;
public UIButton addItemButton;
public UIImage Image;
public ProductTableSource (List<Product> items, RootViewController controller)
{
this.tableItems = items;
this.controller = controller;
Image = UIImage.FromFile ("Images/plus.png");
addItemButton = UIButton.FromType(UIButtonType.Custom);
var buttonFrame = new RectangleF (0f, 0f, Image.Size.Width, Image.Size.Height);
addItemButton.Frame = buttonFrame;
addItemButton.SetImage(Image, UIControlState.Normal);
addItemButton.TouchUpInside += delegate {
Console.WriteLine ("Touched");
};
}
public void setTableItem (List<Product> tableItems)
{
this.tableItems = tableItems;
}
/// <summary>
/// Called by the TableView to determine how many cells to create for that particular section.
/// </summary>
public override int RowsInSection (UITableView tableview, int section)
{
return tableItems.Count;
}
/// <summary>
/// Called when a row is touched
/// </summary>
public override void AccessoryButtonTapped (UITableView tableView, NSIndexPath indexPath)
{
var prod = controller.Productdetails[indexPath.Row];
Double amount = 1*prod.SellingPriceA;
transaction = new Transaction();
transaction.SetTransaction(controller.CustomerID, prod.ID, prod.Description1,1, prod.SellingPriceA,0.0,amount);
controller.UpdateOrderedItemsTableView();
}
/// <summary>
/// Called by the TableView to get the actual UITableViewCell to render for the particular row
/// </summary>
public override UITableViewCell GetCell (UITableView tableView, MonoTouch.Foundation.NSIndexPath indexPath)
{
// request a recycled cell to save memory
UITableViewCell cell = tableView.DequeueReusableCell (cellIdentifier);
// if there are no cells to reuse, crate a new one
if (cell == null) {
cell = new UITableViewCell (UITableViewCellStyle.Default, cellIdentifier);
}
var cust = controller.Productdetails [indexPath.Row];
cell.TextLabel.Text = cust.Description1;
cell.AccessoryView = this.controller.addItemButton;
return cell;
}
}
Here is Error I am getting. Not sure what is going on. Perhaps I used inappropriate functions. Please suggestion me!!!
**Stacktrace:
at (wrapper managed-to-native) MonoTouch.UIKit.UIApplication.UIApplicationMain (int,string[],intptr,intptr) <IL 0x0009f, 0xffffffff>
at MonoTouch.UIKit.UIApplication.Main (string[],string,string) [0x0004c] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIApplication.cs:38
at SalesOrder.Application.Main (string[]) [0x00000] in /Users/Mac/Projects/SalesOrderPolarisnet/SalesOrder/Main.cs:17
at (wrapper runtime-invoke) <Module>.runtime_invoke_void_object (object,intptr,intptr,intptr) <IL 0x00050, 0xffffffff>
Native stacktrace:
0 SalesOrder 0x000908cc mono_handle_native_sigsegv + 284
1 SalesOrder 0x000056f8 mono_sigsegv_signal_handler + 248
2 libsystem_c.dylib 0x9613559b _sigtramp + 43
3 ??? 0xffffffff 0x0 + 4294967295
4 UIKit 0x022620e6 -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 61
5 UIKit 0x02308ade -[UIControl sendAction:to:forEvent:] + 66
6 UIKit 0x02308fa7 -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 503
7 UIKit 0x02307d8a -[UIControl touchesBegan:withEvent:] + 264
8 UIKit 0x02523a1a _UIGestureRecognizerUpdate + 6725
9 CoreFoundation 0x011b099e __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 30
10 CoreFoundation 0x01147640 __CFRunLoopDoObservers + 384
11 CoreFoundation 0x011134c6 __CFRunLoopRun + 1174
12 CoreFoundation 0x01112d84 CFRunLoopRunSpecific + 212
13 CoreFoundation 0x01112c9b CFRunLoopRunInMode + 123
14 GraphicsServices 0x048307d8 GSEventRunModal + 190
15 GraphicsServices 0x0483088a GSEventRun + 103
16 UIKit 0x0225f626 UIApplicationMain + 1163
17 ??? 0x0d4d41f4 0x0 + 223166964
18 ??? 0x0d4d2f50 0x0 + 223162192
19 ??? 0x0d4d27c0 0x0 + 223160256
20 ??? 0x0d4d284f 0x0 + 223160399
21 SalesOrder 0x00009ab2 mono_jit_runtime_invoke + 722
22 SalesOrder 0x0016b34e mono_runtime_invoke + 126
23 SalesOrder 0x0016f4d4 mono_runtime_exec_main + 420
24 SalesOrder 0x001748c5 mono_runtime_run_main + 725
25 SalesOrder 0x00066cb5 mono_jit_exec + 149
26 SalesOrder 0x00203911 main + 2209
27 SalesOrder 0x00002ab5 start + 53
=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================**
It is possible that Mono’s GC collect and dispose your UIButtons since they’re declared as local variables. I recommend you to subclass UITableViewCell, include UIButton to it and then use that class in GetCell.
BTW, it’s better to use TouchUpInside instead of TouchDown event.