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StrataFrame Novice
 
Group: StrataFrame Users
Last Login: 05/30/2008 10:52:28 AM
Posts: 72, Visits: 251 |
| | Hi there. I have a string custom property in a BO which I bind to a MicroFour.StrataFrame.UI.Windows.Forms.DevEx.TextEdit. When setting the value of the property at run-time, with code Customer.CustomProperty = "SomeValue"; the control does not show the changed value. Is it something I'm not doing right? BindingUpdateMode and ControlSourceUpdateMode are both OnPropertyChanged. I have tried this with your DevEx sample application, and does not work there either. |
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StrataFrame Developer
Group: StrataFrame Developers
Last Login: Today @ 8:12:17 AM
Posts: 4,243, Visits: 4,288 |
| | There are several options here, but the reason is that there is not a native Changed event managing the custom property. However, you can do several things, you can create a custom event (propnameChanged as EventHandler) that is raised when the value is changed....or just call the Refresh method on the BO: Customers.Refresh("MyCustomFieldName") or within the property Me.Refresh("MyCustomFieldName") |
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StrataFrame Developer
Group: StrataFrame Developers
Last Login: Today @ 9:05:01 AM
Posts: 2,666, Visits: 1,878 |
| | If the custom property does not have a backing field within the underlying DataTable, you will need to raise a "Changed" event when the property is set. The event needs to be an EventHandler and needs to be named PropertyNameChanged where "PropertyName" is the name of your property (i.e. TextChanged on a textbox). The .NET binding system will then find the event and add a handler to it to determine when to refresh the control. So: public event EventHandler CustomPropertyChanged;
protected virtual void OnCustomPropertyChanged(EventArgs e)
{
if (CustomPropertyChanged != null)
{ CustomPropertyChanged(e); }
} [all of the necessary attributes]
public string CustomProperty
{
get { return _customProperty; }
set
{
if (_customProperty != value)
{
_customProperty = value;
OnCustomPropertyChanged(EventArgs.Empty);
}
}
}
www.bungie.net |
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StrataFrame Novice
Group: StrataFrame Users
Last Login: 05/30/2008 10:52:28 AM
Posts: 72, Visits: 251 |
| | Thank you guys. It's really nice knowing I can count on you... |
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StrataFrame Developer
Group: StrataFrame Developers
Last Login: Today @ 9:05:01 AM
Posts: 2,666, Visits: 1,878 |
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