Windows 10: How to create Treeview with Multiple column as a generic using MVVM pattern with WPF?

1. How to implement customize control like TreeListView as a generic2. I created Treeview with multiple column but it's static and I need to create dynamic column3. How to resize column header and Treeviewitem

:)

 

SQL HELP-ORA-04073 column list not valid for this trigger type

Hi,

After trying to create this trigger:

CREATE OR REPLACE TRIGGER a
AFTER INSERT OF duration, startdate ON route, outing
FOR EACH ROW
WHEN (NEW.startdate LIKE %jan%)
AND (NEW.duration = 5)
DECLARE
closed_in_jan EXCEPTION;

EXCEPTION
WHEN closed_in_jan THEN
RAISE_APPLICATION_ERROR (-20101,We are closed in January.');



I get this error:

ORA-04073 column list not valid for this trigger type
Cause
A column list was specified for a non-update trigger type.

Action
Remove the column list.


I've tried researching but can't find out what a column list is!

Any help would be appreciated, thanks.

 

How to delete multiple non-adjacent columns in Excel at the same time?

I would like to suggest you simple Macro, to delete multiple non-adjacent columns in one stroke.

N.B.

• You can replace values in Split("2-4-6",,) with required Column
  numbers like Split("1-3-5").
  
• Column's order must be Ascending.
  
• With Sheet1, is also editable.
  

 

UWP DataTemplate DataType Property Binding

Hello,

I am in the process of getting back to developing application for windows. In WPF, on a UI control's DataTemplate there is a DataType property which allows you to map to a type. How would one accomplish this when developing for windows 10? I am coding using
the MVVM pattern.