Questions on UI for WinForms Forum

3 answers

173 views

Can Width of Drop-Down Listbox Be Changed for GridViewMultiComboBoxColumn within a GridView?

I have a GridViewMultiComboBoxColumn (width: 175) within a GridView (width: 500). The GridViewMultiComboBoxColumn's DataSource is set to the result of a query selecting several columns (id, name, city, state). The GridViewMultiComboBoxColumn dislays multiple columns when the user clicks on the drop-down arrow. Since the GridViewMultiComboBoxColumn is made up of several columns (id, name, city, state), when the drop-down arrow is clicked on, and the listbox drops down, the column width of the GridViewMultiComboBoxColumn (175) is rather narrow and its hard to see the information contained in the columns.

Is it possible to change the width, currently 175, of the listbox that drops down for a GridViewMultiComboBoxColumn contained within a GridView, yet keep the width of the column (175) within the GridView without changing? If so, can you show me with code.

In other words, can I keep the control's width at 175, before and after the user clicks the drop-down arrow, but make it much wider, when they click on the drop-down arrow and the drop-down portion (or listbox aspect) of the GridViewMultiComboBoxColumn is accessible?

GridView

answered on 15 Aug 2011

9 answers

410 views

RadGridView ColumnGroup

Hi again

(A barrage of questions today!)

When creating a custom column grouping via ColumnGroupsViewDefinition, I noticed a few things that puzzled me:-

-I could no longer move columns around or use the columnchooser

-I'm unable to provide different right-click context menus for data and "sub" header cells. (Subgroup headings they do not register as GridHeaderCellElement or GridHeaderRowElement but appear to be GridDataCellElement)?

-I can only "pin" the main headings

I suspect a lot of that is by design, but if there are any avenues that I could use to enable a user to select what columns or even columngroups that they wish to see without losing the nice multi-row headings, it would be great!

Regards,

Mike

GridView

answered on 12 Aug 2011

1 answer

123 views

How do I refresh my treeview?

Hi,

My radtreeview is loaded from a Oracle dataset. How do i refresh it to catch up with any changes that may have been made to the database?

Can you please include an example.

Treeview

answered on 12 Aug 2011

3 answers

285 views

Updating Radtreeview data with Datasource

Hi,

I am looking for some help as I am new to this control.

I have set up a RadTreeView to pull data from an Oracle database via the Datasources option. I have been able to load 3 levels of data. Now, I want to be able to edit the data on the treeview and that update be replicated back to the oracle database.

Thus far I have come up with the following. However I think I am missing something.

When I update a Node, the data is saved back to the database but the child nodes on the treeview dissapear (since the parent has now changed). I cannot find a way of refreshing the treeeview. Can somebody please help??

Private Sub RadTreeView1_Edited(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.TreeNodeEditedEventArgs) Handles RadTreeView1.Edited

On Error GoTo ErrMsg

Dim DBConnection As New OleDbConnection("Provider=msdaora;Data Source=ubrmos01;User Id=tiadmin;Password=******")

Dim strsql As String

If e.Node.Level = 0 Then

DBConnection.Open()

strsql =

"UPDATE APPLICATION set APPLICATION = " & "'" & e.Node.Text & "'" & " where APPLICATION = " & "'" & Text_beforeedit & "'"

Dim Command As New OleDbCommand(strsql, DBConnection)

Command.ExecuteNonQuery()

End If

If e.Node.Level = 1 Then

DBConnection.Open()

strsql =

"UPDATE ENVIRONMENT set ENVIRONMENT = " & "'" & e.Node.Text & "'" & " where ENVIRONMENT = " & "'" & Text_beforeedit & "'"

Dim Command As New OleDbCommand(strsql, DBConnection)

Command.ExecuteNonQuery()

End If

Exit Sub

errmsg:

e.Node.Text = Text_beforeedit

MsgBox(Err.Description, MsgBoxStyle.Critical,

"Error Updating Database")

End Sub

Treeview

answered on 12 Aug 2011

1 answer

122 views

Dashed border

Hello

I am trying to make a border or a separator line primitive to draw in dashed or dotted style, but cannot figure out how to accomplish this.

Best Regards
Lars Krog-Jensen

General Discussions

answered on 12 Aug 2011

8 answers

184 views

Help with drag/drop type functionallity

Dear support community,

I am working with a form that will be used to schedule manufacturing orders. Each column of the grid represents a piece of machinery (resource) and each cell in a column represents a placeholder for a work order (activity).

I have my grid working in such that it create the columns and populates the cells in each column with the activities assigned from a back end system.

Now I would like to make it so the user can drag/drop a cell from one row to a higher or lower row in the same column or to an entirely different cell in a different column.

I cannot figure out a way to allow a cell to be drag/dropped like with some of the other controls such as the Scheduler control (which I have tried but it does not seem suited to my application).

So one option would be to know which cell the user has the mouse over when clicked and also which cell the user has the mouse over when the mouse button is released and then execute some code afterwards to either automatically adjust the grid cell contents or in some cases prompt the user for what they wish to do.

Any help is greatly appreciated.

Best Regards,
Bill Mitchell

GridView

answered on 11 Aug 2011

1 answer

161 views

add elements at runtime

On the website i read that it is possible to add elements to the propertygrid, but i cannot figure out how to do this. Can anybody show me how to do this. I want to be able to create groups and add elements by clicking a button.

Thanks in advance.

PropertyGrid

answered on 11 Aug 2011

5 answers

130 views

Open Recurring Item Dialog Formatting

Hello,

The Open Recurring Item Dialog for the Rad Scheduler is commonly too small for the text that it needs to display [the text gets truncated]. I'd also like to change the background color. Can you point me at some information so that I can achieve both of these things?

Thanks!

Jeremy

Scheduler and Reminder

answered on 11 Aug 2011

1 answer

315 views

Remove selected and hover states

Probably missing something here, but is there an easy way to block the selected and hovered item being highlighted? It is undesirable in my touch screen application.

ListView

answered on 11 Aug 2011

9 answers

1.9K+ views

RadGridView Row Formatting

Hi,
I need to manually set coloring in my grid rows(I don't want this, the customer does!!!) and I am puzzled

I managed to do it with the header like this:

For i As Integer = 0 To Me.RadGridView1.MasterGridViewInfo.TableHeaderRow.Cells.Count - 1
        Me.RadGridView1.MasterGridViewInfo.TableHeaderRow.Cells(i).CellElement.BackColor = Color.Green
        Me.RadGridView1.MasterGridViewInfo.TableHeaderRow.Cells(i).CellElement.BackColor2 = Color.Green
        Me.RadGridView1.MasterGridViewInfo.TableHeaderRow.Cells(i).CellElement.BackColor3 = Color.Green
        Me.RadGridView1.MasterGridViewInfo.TableHeaderRow.Cells(i).CellElement.BackColor4 = Color.Green
        Me.RadGridView1.MasterGridViewInfo.TableHeaderRow.Cells(i).CellElement.ForeColor = Color.White
      Next

How can I do the same for the rest of the rows, especially when I need to have different colors for the alternating rows??

Thank you in advance

George

GridView

answered on 11 Aug 2011