Codejock Developer Community : .DefaultValue issues

.DefaultValue issues : Hello CJ-Team, I'm really...

Wed, 21 Oct 2009 17:16:04 +0000

Author: Josef
Subject: 12430
Posted: 21 October 2009 at 5:16pm

Hello CJ-Team,

I'm really impressed that you were not able to change the type of .DefaultValue from String to Variant within the last year .

You did this change on ListBox/ComboBox .ItemData method in 13.2, why not on PropertyGrid.DefaultValue??

Bye, Josef

.DefaultValue issues : I third this request. I'm...

Sat, 23 May 2009 02:21:30 +0000

Author: sforces
Subject: 12430
Posted: 23 May 2009 at 2:21am

I third this request.

I'm converting to CJ PropertyList from another PropertyList and am finding this would RRRREEEALLLY make things a whole lot simpler as Araron and Josef have already pointed out.

It's been 5 months since your last response. Can you please update on when this will be included?

Aaron wrote:

Hi Oleg,

Is this option removed from TODO list and added to Beta release?

I really hope so because I'm really desperate...

Thanks a lot in advance

.DefaultValue issues : Hi Oleg, Is this optionremoved...

Tue, 19 May 2009 14:51:17 +0000

Author: Aaron
Subject: 12430
Posted: 19 May 2009 at 2:51pm

Hi Oleg,

Is this option removed from TODO list and added to Beta release?

I really hope so because I'm really desperate...

Thanks a lot in advance

.DefaultValue issues : Added to my TODO list. :)

Mon, 29 Dec 2008 03:31:41 +0000

Author: Oleg
Subject: 12430
Posted: 29 December 2008 at 3:31am

Added to my TODO list. :)

.DefaultValue issues : Aaron wrote:Hi, CJ could...

Sun, 28 Dec 2008 05:25:37 +0000

Author: Aaron
Subject: 12430
Posted: 28 December 2008 at 5:25am

Aaron wrote:

Hi,

CJ could make HighlightChangedItem public and we could use this to check if the value has been changed

Thanks in advance

Oleg??? Could this be possible in next releases?

.DefaultValue issues : Hi, CJ could make HighlightChangedItempublic...

Sat, 22 Nov 2008 05:04:29 +0000

Author: Aaron
Subject: 12430
Posted: 22 November 2008 at 5:04am

Hi,

CJ could make HighlightChangedItem public and we could use this to check if the value has been changed

Thanks in advance

.DefaultValue issues : Hi, If CJ would add ValueChanged...

Sun, 26 Oct 2008 13:52:31 +0000

Author: Aaron
Subject: 12430
Posted: 26 October 2008 at 1:52pm

Hi,

If CJ would add ValueChanged property for PropertyGridItem and Item.Value would be changed (new) ValueChanged property flag would be true and we don't have to compare the values anymore. I think this would be better than changing return values (think about previous versions in which other users have build their "workarounds" to get this working like you now )

.DefaultValue issues : Aaron, Thank you for testing....

Sun, 26 Oct 2008 11:57:29 +0000

Author: Josef
Subject: 12430
Posted: 26 October 2008 at 11:57am

Aaron,

Thank you for testing. A new event would help a little, but does not solve the whole problem:

In the Save-code of an option dialog, you will have the same problem: To know which item was changed by enumerating all items.

But again, you can't do this without writing code for each itemtype. A property .ValueChanged would help, but the best solution would be if .Defaultvalue and .Value containts the same variable type (Variant) and .Defaultvalue contains the value added by .AddChildItem and nothing else.

Currently I'm using the .Tag (=variant type) property to store the Defaultvalue and compare .Tag with .Value to see if the item was changed. But in fact, this would not be necessary if DefaultValue would work as described in helpfile.

Thank you,
Josef

.DefaultValue issues : Hi, OK, now I know what you...

Sun, 26 Oct 2008 04:42:44 +0000

Author: Aaron
Subject: 12430
Posted: 26 October 2008 at 4:42am

Hi,

OK, now I know what you mean. Return values of items in ValueChanged event always return string and not the type as assigned to it. I tested your issue with PropertyItemString and it worked, but after testing with different types I have to say this doesn't work at all. Most types will work when comparing the Item.Value with Item.DefaultValue, but most isn't good enough

Enum: returns value selected index of constraint instead of caption
Bool: returns value True,False instead of "True","False"
Color: returns a right value but only when assigning the DefaultValue yourself you can compare both values.
Font: Fontname is working but changing size or other properties isn't

Note: I didn't test PropertyItemOption and PropertyItemEnumFlags

Conlusion: You have to put a lot of effort into it to compare Value and DefaultValue to make it right.

My advice would be adding a property ValueChanged (Read/Write) for propertygrid items, in this case we would only have to check this property and not a lot of coding just to compare both values. There's a property HighlightChangedItems so PropertyGrid control already knows the Item.Value has been changed. So it wouldn't be hard to implement this feature

Thanks a lot

.DefaultValue issues : Hello Aaron, Of course it is...

Fri, 24 Oct 2008 18:21:00 +0000

Author: Josef
Subject: 12430
Posted: 24 October 2008 at 6:21pm

Hello Aaron,

Of course it is strange, if my code does not work !

My code would work, if this description of Defaultvalue in SymbolReference.chm would be true:

"The DefaultValue is the value provided when the item was added with the AddChildItem method."

This is not true, because the value added with AddChildItem is a variant datatype, but Defaultvalue is string.

BTW: Your code snippet would have the same problem as my sample code
To make it work, you have to convert .Defaultvalue to Variant:

cmdSave.Enabled = (Item.Value <> CBool(Item.DefaultValue))

But this is only valid, if Item.Type = PropertyItemBool.
So you have to write different code for each ItemType, instead of just using

If .DefaultValue <> .Value Then

for all items.

Please try this real life sample (I think it addresses the same problem):

With .AddChildItem(PropertyItemEnum, "Default Addresslist", 5)

    .Constraints.Add "AddressBook1", 0

    .Constraints.Add "  All Users", 5

    .Constraints.Add "  Public Folders", 10

    .Constraints.Add "AddressBook2", 15

    .Constraints.Add "  All Users", 20

    .Constraints.Add "  Public Folders", 25

    .Constraints.Add "AddressBook3", 30

    .Constraints.Add "  All Users", 35

    .Constraints.Add "  Public Folders", 40

End With

1. Although the value added with AddChildItem is 5, the preselected Combobox-Item is the third " All Users" item (35).

2. How would you set cmdSave.Enabled in ValueChanged event, if user selects another " All Users" item? Defaultvalue contains string " All Users" instead of variant 5.

Please think about this issue again, hope I can change your mind.

Thank you,
Josef