ComboBox value

[Matthew Wells]

Good Morning All,

I have a simple WinForm with a ComboBox at the top bound to a datatable.
It's set as a DropDown. When a selection is made it fires the
"SelectedIndexChanged" event. No problem. But when a user manually makes
the text blank, that event doesn't fire. Okay, I added the "TextChanged"
event to catch that. So when a user blanks out the text of the combobox,
the TextChanged event fires, I check to see if the text == "" and if so then
fire then fire the SelectedIndexChanged event. This works fine on the first
form I made.

I have a new form with the exact same setup. However, when the TextChanged
event fires after the text is deleted, the first line is

if ("" == DDApplications.Text)

which is false?

when I hover over DDApplications.Text, it shows the previous value, not ""
even though I can see on the screen it's "".

This still works fine on the first form.

Both comboboxes have the exact same properties - including the name.
All events have the exact same code - I copied it.

Any ideas?

Thanks


-- Matthew Wells
(e-mail address removed)

 

[alex]

Good Morning All,
This still works fine on the first form.

Both comboboxes have the exact same properties - including the name.
All events have the exact same code - I copied it.

Any ideas?

Thanks


-- Matthew Wells
(e-mail address removed)

Sometimes "Rebuild Project" (or Clean/Build) takes care of this kind of errors. If it doesn't, try to restart the IDE.

Alex.

 

[Matthew Wells]

Tried all - including rebooting - no luck. But thank you.

"alex" wrote in message

Good Morning All,
This still works fine on the first form.

Both comboboxes have the exact same properties - including the name.
All events have the exact same code - I copied it.

Any ideas?

Thanks


-- Matthew Wells
(e-mail address removed)

Sometimes "Rebuild Project" (or Clean/Build) takes care of this kind of
errors. If it doesn't, try to restart the IDE.

Alex.

 

[Dom]

Matthew -- does the bound datatable contain the initial value of the combo box? If not, you are in trouble. Try making that change and see if it works.

 

[Matthew Wells]

Not quite sure how that applies. There are no blank values in the
datatable. Whenever you set a combobox's datasource, it applies the first
row of the table so I guess the answer is yes.

BTW separate tip for all, I just found out that when you set a databound
combox datasource to null, it changes the "DisplayMember" property value to
"". It leave the Valuemember alone.


"Dom" wrote in message

Matthew -- does the bound datatable contain the initial value of the combo
box? If not, you are in trouble. Try making that change and see if it
works.