ComboBox, using AutoSelectFirstItemOnValidateForNoSelection, errors after second invalid entry

Govinda Berrio — Mon, 24 Feb 2014 16:15:16 GMT

Hello SF Devs,

Can you confirm this bug that I am experiencing?

I have an SF ComboBox bound to a business object integer property. It is setup to be an AutoComplete ComboBox (Mode: SuggestAppend) and the AutoSelectFirstItemOnValidateForNoSelection is set to true.

It works fine until the user types a string that does not match any option in the dropdown and tabs off the control twice in a row.

At this point it will throw the following error:

Specified cast is not valid.

at GKGLibExamples.BusinessObjects.ItemsBO.FieldDescriptor.SetValue(Object component, Object value) in C:\Users\gberrio\Documents\Visual Studio 2008\Projects\GKGLib\GKGLibExamples\BusinessObjects\ItemsBO.Designer.cs:line 1767

at System.Windows.Forms.BindToObject.SetValue(Object value)

at System.Windows.Forms.Binding.PullData(Boolean reformat, Boolean force)

The value it is trying to set the property to is DBNull.

Reproduction Steps:

- select the combobox

- enter a string that does not return an auto suggest option

- tab off the control

- select the combobox again

- enter a string that does not return an auto suggest option

- ! ERROR !

StrataFrame Forum » StrataFrame Application Framework - V1 » Issues » ComboBox, using AutoSelectFirstItemOnValidateForNoSelection, errors after second invalid entry

ComboBox, using AutoSelectFirstItemOnValidateForNoSelection, errors after second invalid entry