Moving items in a listview? up and down either dragging or with buttons

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Moving items in a listview? up and down either dragging or with buttons

Moving items in a listview? up and down either dragging or with...

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Charles R Hankey	Charles R Hankey posted 15 Years Ago HOT Topic Details Share Topic
Group: Forum Members Posts: 524, Visits: 30K	I want to display the contents of a BO in a List/Listview/grid whatever for the sole purpose of the user being able to rearrange or modify the order of the list ( I will then write back the new position into the sequence number field of the table) Ideally, I would use the new StratalistView control, but it would also be fine to use the current SF Listview. Dragging and dropping to new position with the mouse would be fine, selecting a using arrows to move would be fine or just having buttons to move the item up and down the way it is done with fields in DDT would be fine. I think I'm missing something easy. Suggestions?
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Ivan George Borges	Ivan George Borges posted 15 Years Ago Post Details Share Post
Group: StrataFrame MVPs Posts: 1.9K, Visits: 21K	Hey Charles! Have you got an Order column on the table? Guess that if you have it, it has incremented values in it and the table ir ordered on it, when clicking the Up and Down button on your form could exchange the values from the selected row with the upper or lower row, according to which button was pressed.
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Charles R Hankey	Charles R Hankey posted 15 Years Ago Post Details Share Post
Group: Forum Members Posts: 524, Visits: 30K	Hi Ivan I thought about doing something like that but it seems the framework uses the buttons a lot for things like item lists and I thought there might be some command in the listview or something that could be called from the button that changes the item's position in the list. ????
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Trent Taylor	Trent Taylor posted 15 Years Ago Post Details Share Post
Group: StrataFrame Developers Posts: 6.6K, Visits: 6.9K	This is something that we do a fair amount in the medical application. There are a number of places that we need to have things ranked. In these situations, we will create a toolstrip button for both up and down. Then create a single method that supports the entire logic and simply extract and re-insert the list item either ahead or behind (depending on moving up or down). Here is an example using the ListView. But you could do the same thing with the StrataListView: Private Sub MoveItem(ByVal moveDown As Boolean) If lstList.SelectedItems.Count = 0 Then Exit Sub '-- Establish Locals Dim item As ListViewItem Dim index As Integer = lstList.SelectedIndices(0) '-- Determine which way to move the item If moveDown Then '-- See if a move down is possible If index = lstList.Items.Count - 1 Then Exit Sub '-- Extract the item from the list item = lstList.Items(index) lstList.Items.Remove(item) '-- Insert the item lstList.Items.Insert(index + 1, item) Else '-- See if the item can be moved up If lstList.SelectedIndices(0) = 0 Then Exit Sub '-- Extract the item from the list item = lstList.Items(index) lstList.Items.Remove(item) '-- Insert the item lstList.Items.Insert(index - 1, item) End If '-- May need to update some toolbar items, menus, etc. after the change is made. Do that now. SetMenuItems() End Sub
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Charles R Hankey	Charles R Hankey posted 15 Years Ago Post Details Share Post
Group: Forum Members Posts: 524, Visits: 30K	Thanks Trent. I am about to try this with a listview and a stratalistview. I assume moving an item moves the subitems along with it?
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Charles R Hankey	Charles R Hankey posted 15 Years Ago Post Details Share Post
Group: Forum Members Posts: 524, Visits: 30K	Worked great on the listview. I'm putting into a shared sub in my util library and passing in the Listview by reference. Will have another for the Stratalistview.
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Trent Taylor	Trent Taylor posted 15 Years Ago Post Details Share Post
Group: StrataFrame Developers Posts: 6.6K, Visits: 6.9K	I assume moving an item moves the subitems along with it? Yes. A sub item belongs to the actual item. This is the same type of logic that the standard ListView used and we just followed suit to try and make the learning curve slightly less.
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Ivan George Borges	Ivan George Borges posted 15 Years Ago Post Details Share Post
Group: StrataFrame MVPs Posts: 1.9K, Visits: 21K	Yep, perfect! Sorry for the silly idea, Charles.
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Edhy Rijo	E Edhy Rijo posted 15 Years Ago Post Details Share Post
E Group: StrataFrame Users Posts: 2.4K, Visits: 23K	Hi Ivan, Nice to see you back! where have you been? Edhy Rijo
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Ivan George Borges	Ivan George Borges posted 15 Years Ago Post Details Share Post
Group: StrataFrame MVPs Posts: 1.9K, Visits: 21K	Hey Edhy! Well... cruising around the world. (yep, I daydream) Just too busy. But I was reading the posts every chance I got. Have read lots of yours, very good ones actually. How've you been?
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