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  Topic: VirtualTree Spanning Columns
medbiller

Replies: 3
Views: 6518

PostForum: Virtual Tree Support   Posted: Wed Jul 18, 2018 11:47 pm   Subject: VirtualTree Spanning Columns
Hi:
I have a virtual tree databound to a dataset with 4 datatables. Somewhere in table 2 an empty row would purposely show. I need to show here something like: "Drag here payments not matched to ...
  Topic: Cannot show autocomplete in textbox cell editor.
medbiller

Replies: 1
Views: 5516

PostForum: Virtual Tree Support   Posted: Sun Feb 14, 2016 9:05 pm   Subject: Cannot show autocomplete in textbox cell editor.
I have the following code:

Private Sub CellEditorTxtResult_SetControlValue(sender As Object, e As Infralution.Controls.VirtualTree.CellEditorSetValueEventArgs) Handles CellEditorTxtResu ...
  Topic: Cannot add cell editor in VS2010 UI
medbiller

Replies: 1
Views: 6301

PostForum: Virtual Tree Support   Posted: Sun Mar 01, 2015 11:24 pm   Subject: Cannot add cell editor in VS2010 UI
The first time I tried to add a cell editor to a version 4.8.4 virtual tree with defined columns but no editors I get the dropdown box in the 'New Cell Editor' dialog with the default selection 'Infra ...
  Topic: v4.8.3 breaks with null reference exception on vt.FindRow()
medbiller

Replies: 3
Views: 8575

PostForum: Virtual Tree Support   Posted: Wed Dec 31, 2014 12:09 am   Subject: vTree 4.8.3 exception stack trace
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.NullReferenceException: Object re ...
  Topic: v4.8.3 breaks with null reference exception on vt.FindRow()
medbiller

Replies: 3
Views: 8575

PostForum: Virtual Tree Support   Posted: Tue Dec 30, 2014 5:06 pm   Subject: v4.8.3 breaks with null reference exception on vt.FindRow()
Hi:
Recently I updated from vTree v4.7.0 to v4.8.3 The following code breaks at Dim vtrw As Row = vt.FindRow(drw) with a null reference error. It had been running well for 5 years before the update. ...
  Topic: VS2010 Breaks when changing column properties...?
medbiller

Replies: 3
Views: 8921

PostForum: Virtual Tree Support   Posted: Wed Jan 15, 2014 11:49 pm   Subject: VS2010 Breaks when changing column properties...?
Right. Thanks.
  Topic: VS2010 Breaks when changing column properties...?
medbiller

Replies: 3
Views: 8921

PostForum: Virtual Tree Support   Posted: Wed Jan 15, 2014 3:06 am   Subject: VS2010 Breaks when changing column properties...?
1. Create a new Windows Forms app.
2. Drop Virtual Tree on a form.
3. Add Column 1
4. Set Column1's Prefix Column = True.
5. Set Main Column = True
6. Boom!

I get 'MS Visual Studio needs to cl ...
  Topic: Cross-thread operation not valid: Control '' accessed from a
medbiller

Replies: 8
Views: 14089

PostForum: Virtual Tree Support   Posted: Tue Aug 27, 2013 12:49 pm   Subject: CheckBox editor problems - Improving. Some CkBoxes disappear
Thanks so much for your concern & time. Here is what we've done so far.
1. Leave the CellEditor hosting a Checkbox bound to the corresponding column BUT without any event handlers implemented. Th ...
  Topic: Cross-thread operation not valid: Control '' accessed from a
medbiller

Replies: 8
Views: 14089

PostForum: Virtual Tree Support   Posted: Fri Aug 23, 2013 5:01 am   Subject: CheckBox control disangaged & displayed outside row.
Thanks for your response. Your File Browser example doesn't scale to a DataTable or DataSet with 1000 rows or more. How many drives a computer can have? Probably from A: to Z: at the most. Can't compa ...
  Topic: Cross-thread operation not valid: Control '' accessed from a
medbiller

Replies: 8
Views: 14089

PostForum: Virtual Tree Support   Posted: Thu Aug 22, 2013 11:52 am   Subject: CheckBox dissapearing or disengaging from VTree Row
How about the 2nd issue explained in my post (please re-read):
"Cannot replicate the error when clicking on child table 'Res' checkbox. When clicking on parent table's checkbox & scrolling t ...
  Topic: Cross-thread operation not valid: Control '' accessed from a
medbiller

Replies: 8
Views: 14089

PostForum: Virtual Tree Support   Posted: Wed Aug 21, 2013 8:27 pm   Subject: Cross-thread operation not valid: Control '' accessed from a
"Cross-thread operation not valid: Control '' accessed from a thread other than the thread it was created on."
This happens after 2 or 3 minutes of checking/unchecking a level 1 checkbox ce ...
  Topic: Virtual Tree ensure row visible
medbiller

Replies: 1
Views: 6348

PostForum: Virtual Tree Support   Posted: Wed Aug 21, 2013 5:58 pm   Subject: Virtual Tree ensure row visible
Hi: I'm using the underlying DataTable & DatarRows to find a particular unseen VTree Row using the following;
If condition
Dim rw as RowVTree.FindRow(DataRow)
rw.selected=True
...
  Topic: Lookup field () cannot be used because the table (dtProcs1)
medbiller

Replies: 2
Views: 7054

PostForum: Virtual Tree Support   Posted: Wed Jul 31, 2013 11:14 am   Subject: LookupField = '' Caused warning message in imediate window
Yes indeed. I found the statement DataRowCellBinding190.LookupField = "" under the column proc1From block in the designer code. Changed it to DataRowCellBinding190.LookupField = Nothing and ...
  Topic: Lookup field () cannot be used because the table (dtProcs1)
medbiller

Replies: 2
Views: 7054

PostForum: Virtual Tree Support   Posted: Mon Jul 29, 2013 1:43 am   Subject: Lookup field () cannot be used because the table (dtProcs1)
Hi,
I have a Virtual Tree that apparently works fine, but when debugging the application we get the following message in VS2010's Inmediate window, when the vTree data source is set.

VirtualTree: ...
  Topic: Memory Leak Virtual Tree 4.5.0.0
medbiller

Replies: 6
Views: 10957

PostForum: Virtual Tree Support   Posted: Wed Feb 06, 2013 10:24 pm   Subject: Memory Leak
Hi:
We already tried all combinations of GC.Collect with/without GC.WaitForPendingFinalizers, etc. Also Me.Dispose in the FormClosed Event. PerfMon always shows #Bytes in all Heaps & Private Byt ...
 
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