Greetings.
I need some technical help with the following situation. I have a button on
my view controller. Now On touching it I want to display an action sheet
with a pickerview populated with data fetched from sqlite database. I have
my subclass of UiPickerViewModel defined, the function for fetching the data
from database in place. Now I am confused how to properly code for the
action sheet so that it shows the picker view. Rememner this is for iPAD.
Here is my subclass of pickerviewmodel.
------------------------------------------------------------------------------------------------
namespace ASTONAPP
{
public class PickerDataItemSource:UIPickerViewModel
{
public PickerDataItemSource ()
{
}
public PickerDataItemSource (List<PickerDataItem> lst)
{
this.Items=lst;
}
public event EventHandler<EventArgs> ValueChanged;
public List<PickerDataItem> Items
{
get
{
return this._items;
}
set
{
this._items = value;
}
}
List<PickerDataItem> _items = new List<PickerDataItem>();
public PickerDataItem SelectedItem
{
get
{
return this._items[this._selectedIndex];
}
}
protected int _selectedIndex = 0;
public override int GetRowsInComponent (UIPickerView picker, int
component)
{
return this._items.Count;
}
public override string GetTitle (UIPickerView picker, int row,
int
component)
{
return this._items[row].SiteName.ToString ();
}
public override int GetComponentCount (UIPickerView picker)
{
return 1;
}
public override void Selected (UIPickerView picker, int row, int
component)
{
this._selectedIndex = row;
if (this.ValueChanged != null)
{
this.ValueChanged (this, new EventArgs ());
}
GlobalVariables.TargetSiteToMoveID=Convert.ToInt32(this._items[row].SiteID.ToString
());
}
}
}
------------------------------------------------------------------------------------------------
Now in my view controller I am doing this:
PickerSiteItemSource _pickerSiteSource;
DBHandler objdbh=new DBHandler();
UIActionSheet sheet1;
UIPickerView pkrsite;
UIButton doneButton = UIButton.FromType (UIButtonType.RoundedRect);
then on touch event of my button,
----------------------------------------------------------------------------------------------
partial void SiteClick (MonoTouch.UIKit.UIButton sender)
{
pkrsite=new UIPickerView(new RectangleF(0f, 0f, 350f,
350f));
this.CreatePickerSiteItems ();
pkrsite.Model=this._pickerSiteSource;
doneButton.SetTitle ("done", UIControlState.Normal);
doneButton.TouchUpInside += (s, e) => {
sheet1.DismissWithClickedButtonIndex (0, true); };
sheet1 = new UIActionSheet () { Style =
UIActionSheetStyle.BlackOpaque };
sheet1.Frame=new System.Drawing.RectangleF(480f, 320f,
300f, 300f);
sheet1.Bounds=new System.Drawing.RectangleF(0f, 0f,
300f, 300f);
sheet1.AddSubview(pkrsite);
sheet1.ShowInView (this.View);
}
----------------------------------------------------------------------------------------------
But as it stands I am not getting the result. What I am getting is a very
thin black line in the middle of my iPAD screen. It appears something is
missing wrt setting the bounds or frame of either the pickerview or the
actionsheet control. I have never used action sheet before. This is my first
time, so I am pretty clueless. Please help me rectify the code block and
help me meet the requirement.
One thing I noticed in the output window when that thin black line is being
presented is that, in the application output window I am getting two
messages:
* invalid height value 350.0 pinned to 216.0*
Please help me. I really need this.
Many Thanks.
--
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