VB Controls, List Property in Property Pane (PLEASE HELP!)

List Property in Property Pane (PLEASE HELP!)

Author	Message
S Figuero #1 / 7	List Property in Property Pane (PLEASE HELP!) I have a Listbox-like custom control I have just created, and this control has a property called 'List' which will hold the values to be displayed on my control (just like it happens with a Listbox) The problem is: I just can't "publish" (expose) the List property on the Property Pane in order to let people assign values during design-time through it (not via code). Does anybody knows how to implement this? Or any idea on how this would work? PLEASE HELP, I am desperate! Thank You!
Wed, 14 Jul 2004 04:33:12 GMT

Ken Halte #2 / 7	List Property in Property Pane (PLEASE HELP!) Bad news... You can't. Some have tried and given up. About the best people can come up with is a property page that contains a textbox. You enter the List values in that box and parse them into seperate list entries. -- Ken Halter MS-MVP-VB Please keep it in the groups.. Quote: > I have a Listbox-like custom control I have just created, and this control > has a property called 'List' which will hold the values to be displayed on > my control (just like it happens with a Listbox) > The problem is: I just can't "publish" (expose) the List property on the > Property Pane in order to let people assign values during design-time > through it (not via code). > Does anybody knows how to implement this? Or any idea on how this would > work? > PLEASE HELP, I am desperate! > Thank You!
Wed, 14 Jul 2004 04:53:04 GMT

S Figuero #3 / 7	List Property in Property Pane (PLEASE HELP!) Thanks, Ken. :-) I understand. But then, how come the original Listbox has a "List" property displayed in the Property Pane with a drop-down listbox to assign values to it? I mean, this gotta be something anybody can implement too, don't you think? That's what I would like to know or to find out. By the way, you say "You can't." Do you mean, it is proven impossible? Has this been stated somewhere? Or just like you are saying too: "some have tried and given up", which I interpret that people have tried but they don't know how to do it yet. If it is just impossible, then, ok, I may give it up. But if it may be possible, just like the original Listbox does, then let's find the way to do it. Would you help me? :-) We can then post it here for the benefit of everybody. In the meanwhile, I'll use the textbox and parse the values. Anyone's comments and suggestions are welcomed. Thanks, Ken, very kind of yours. Quote: > Bad news... You can't. Some have tried and given up. About the best people > can come up with is a property page that contains a textbox. You enter the > List values in that box and parse them into seperate list entries. > -- > Ken Halter > MS-MVP-VB > Please keep it in the groups.. > > I have a Listbox-like custom control I have just created, and this control > > has a property called 'List' which will hold the values to be displayed on > > my control (just like it happens with a Listbox) > > The problem is: I just can't "publish" (expose) the List property on the > > Property Pane in order to let people assign values during design-time > > through it (not via code). > > Does anybody knows how to implement this? Or any idea on how this would > > work? > > PLEASE HELP, I am desperate! > > Thank You!
Wed, 14 Jul 2004 05:42:25 GMT

dnage #4 / 7	List Property in Property Pane (PLEASE HELP!) I'm going to disagree, but before I do, let me say that I am working from the premise that I -think- I know what he is asking for.. Below is a snip of code I'd like you to place into a new userControl, call it whatever you wish. Drop a listbox on the control and then Build the OCX or add another Standard EXE project and make it the Startup project. Place one of the new controls on the form and look for the new property in the development window... "AddItemsHere" Type into the property anything you wish and hit enter. It will show up in the listbox. hth, D. '-- Begin Code Snip -- Private mCol As Collection Public Property Get AddItemsHere() As String AddItemsHere = "Add Items Here..." End Property Public Property Let AddItemsHere(sItem As String) If mCol Is Nothing Then Set mCol = New Collection End If mCol.Add sItem Call RefreshListBox End Property Private Sub RefreshListBox() List1.Clear For Each xItm In mCol List1.AddItem xItm Next End Sub Private Sub UserControl_Initialize() End Sub '-- End Code Snip -- Quote: > Bad news... You can't. Some have tried and given up. About the best people > can come up with is a property page that contains a textbox. You enter the > List values in that box and parse them into seperate list entries. > -- > Ken Halter > MS-MVP-VB > Please keep it in the groups.. > > I have a Listbox-like custom control I have just created, and this control > > has a property called 'List' which will hold the values to be displayed on > > my control (just like it happens with a Listbox) > > The problem is: I just can't "publish" (expose) the List property on the > > Property Pane in order to let people assign values during design-time > > through it (not via code). > > Does anybody knows how to implement this? Or any idea on how this would > > work? > > PLEASE HELP, I am desperate! > > Thank You!
Wed, 14 Jul 2004 05:50:48 GMT

dnage #5 / 7	List Property in Property Pane (PLEASE HELP!) well, I didn't provide a complete solution. I notice that when run, the dataset is wiped out... You're going to have to come up with some way to persist you data between runtime and design time using either the registry or a file. D. Quote: > I'm going to disagree, but before I do, let me say > that I am working from the premise that I -think- > I know what he is asking for.. > Below is a snip of code I'd like you to place into > a new userControl, call it whatever you wish. > Drop a listbox on the control and then Build the OCX > or add another Standard EXE project and make it > the Startup project. Place one of the new controls > on the form and look for the new property in the > development window... > "AddItemsHere" > Type into the property anything you wish and hit enter. > It will show up in the listbox. > hth, > D. > '-- Begin Code Snip -- > Private mCol As Collection > Public Property Get AddItemsHere() As String > AddItemsHere = "Add Items Here..." > End Property > Public Property Let AddItemsHere(sItem As String) > If mCol Is Nothing Then > Set mCol = New Collection > End If > mCol.Add sItem > Call RefreshListBox > End Property > Private Sub RefreshListBox() > List1.Clear > For Each xItm In mCol > List1.AddItem xItm > Next > End Sub > Private Sub UserControl_Initialize() > End Sub > '-- End Code Snip -- > > Bad news... You can't. Some have tried and given up. About the best people > > can come up with is a property page that contains a textbox. You enter the > > List values in that box and parse them into seperate list entries. > > -- > > Ken Halter > > MS-MVP-VB > > Please keep it in the groups.. > > > I have a Listbox-like custom control I have just created, and this > control > > > has a property called 'List' which will hold the values to be displayed > on > > > my control (just like it happens with a Listbox) > > > The problem is: I just can't "publish" (expose) the List property on the > > > Property Pane in order to let people assign values during design-time > > > through it (not via code). > > > Does anybody knows how to implement this? Or any idea on how this would > > > work? > > > PLEASE HELP, I am desperate! > > > Thank You!
Wed, 14 Jul 2004 06:09:07 GMT

Ken Halte #6 / 7	List Property in Property Pane (PLEASE HELP!) If you click on the List property of the ListBox, there's a combobox (looking dialog) that opens an lets you enter as many items as you want. This is the part that you can't duplicate. -- Ken Halter MS-MVP-VB Please keep it in the groups.. Quote: > I'm going to disagree, but before I do, let me say > that I am working from the premise that I -think- > I know what he is asking for.. > Below is a snip of code I'd like you to place into > a new userControl, call it whatever you wish. > Drop a listbox on the control and then Build the OCX > or add another Standard EXE project and make it > the Startup project. Place one of the new controls > on the form and look for the new property in the > development window... > "AddItemsHere" > Type into the property anything you wish and hit enter. > It will show up in the listbox. > hth, > D. > '-- Begin Code Snip -- > Private mCol As Collection > Public Property Get AddItemsHere() As String > AddItemsHere = "Add Items Here..." > End Property > Public Property Let AddItemsHere(sItem As String) > If mCol Is Nothing Then > Set mCol = New Collection > End If > mCol.Add sItem > Call RefreshListBox > End Property > Private Sub RefreshListBox() > List1.Clear > For Each xItm In mCol > List1.AddItem xItm > Next > End Sub > Private Sub UserControl_Initialize() > End Sub > '-- End Code Snip -- > > Bad news... You can't. Some have tried and given up. About the best people > > can come up with is a property page that contains a textbox. You enter the > > List values in that box and parse them into seperate list entries. > > -- > > Ken Halter > > MS-MVP-VB > > Please keep it in the groups.. > > > I have a Listbox-like custom control I have just created, and this > control > > > has a property called 'List' which will hold the values to be displayed > on > > > my control (just like it happens with a Listbox) > > > The problem is: I just can't "publish" (expose) the List property on the > > > Property Pane in order to let people assign values during design-time > > > through it (not via code). > > > Does anybody knows how to implement this? Or any idea on how this would > > > work? > > > PLEASE HELP, I am desperate! > > > Thank You!
Wed, 14 Jul 2004 06:11:11 GMT

Ken Halte #7 / 7	List Property in Property Pane (PLEASE HELP!) The built in ListBox has access to things that usercontrols don't.. most likely direct access to the VB runtime. Quote: > By the way, you say "You can't." Do you mean, it is proven impossible? Has Nothing's impossible but even the authors of these workarounds called them a "Hack" and the sample code was removed from... everywhere. I used to know where to get a sample but it has since vanished. Of course, (thinking out loud and never tried) you might possibly run an EnumWindows API to get a hold of the property window and peek inside that for a property called "List" then show a combo (like) box directly over that spot. If you check out the multi column combo on my site, you'll see that both List and ItemData are supported.. but not shown in the property window. Hopefully Matt C will pop in here and give us the "low down" on this. It's asked at least once a month or so.. -- Ken Halter MS-MVP-VB Please keep it in the groups.. Quote: > Thanks, Ken. :-) I understand. But then, how come the original Listbox > has a "List" property displayed in the Property Pane with a drop-down > listbox to assign values to it? I mean, this gotta be something anybody can > implement too, don't you think? That's what I would like to know or to find > out. > By the way, you say "You can't." Do you mean, it is proven impossible? Has > this been stated somewhere? Or just like you are saying too: "some have > tried and given up", which I interpret that people have tried but they don't > know how to do it yet. If it is just impossible, then, ok, I may give it > up. But if it may be possible, just like the original Listbox does, then > let's find the way to do it. Would you help me? :-) > We can then post it here for the benefit of everybody. In the meanwhile, > I'll use the textbox and parse the values. > Anyone's comments and suggestions are welcomed. > Thanks, Ken, very kind of yours.
Wed, 14 Jul 2004 06:17:48 GMT

Page 1 of 1

[ 7 post ]