I share your thoughts regarding the Microsoft DataGrid..ARGH! It is really
not suited for much customization although they claim it is. I have even had
trouble getting it to show data in the column when a column is scrolled back
on to the screen. Also, it doesn't sort bound arraylists. I've given up on
it and am currently working on my own...I don't like paying 200 to 300 bucks
for a third party control.
You'd think Microsoft could produce a better control.
"Barry Zubel" wrote:
> Actually - anyone have any idea how I can get the vertical scrolling
> for this working correctly?
>
> I'm actually using a wrapped-text derived Column, followed by the
> syncfusion method for setting rowheights automatically. However, the
> vertical scrollbar doesn't appear corrently (if the wrap-text column
> is 2 lines, then you need to add an additional line into the datatable
> before the vert scrollbar appears, and then it will let you scroll
> down (and not be able to view the last record)
>
> It appears that the scrollbar doesn't take account of
> larger-than-normal rowheights, if they're set by reflection.
>
> Argh!
>
> B.
>
> Dennis <(E-Mail Removed)> wrote in message news:<372C5617-C9B9-423C-9233-(E-Mail Removed)>...
> > Thanks to "Imran Koradia" :
> >
> > Here's code that works to get and set rowheights in derived DataGrids. Note
> > the function to get the rowobjects and get/set property is all within the
> > derived DataGrid Class called mydatagrid. The RowObject array of rows is
> > updated by calling get_RowObjects whenever the datasource changes or a row is
> > changed with the mouse:
> >
> > Public Class mydatagrid
> > Private RowObjects as Arraylist = new Arraylist
> >
> > 'Call this whenever datasource changes or row height changed by mouse
> > Private Function get_RowObjects() As ArrayList
> > Dim rows As ArrayList = New ArrayList
> > Dim a As Type = Me.GetType
> > Dim b As Type = a.BaseType
> > Dim mi As MethodInfo = b.GetMethod("get_DataGridRows",
> > BindingFlags.FlattenHierarchy Or BindingFlags.IgnoreCase Or
> > BindingFlags.Instance Or BindingFlags.NonPublic Or BindingFlags.Public Or
> > BindingFlags.Static)
> > Dim dgra As System.Array = CType(mi.Invoke(Me, Nothing), System.Array)
> > Dim dgrr As Object
> > For Each dgrr In dgra
> > If dgrr.ToString().EndsWith("DataGridRelationshipRow") = True Then
> > rows.Add(dgrr)
> > End If
> > Next dgrr
> > Return rows
> > End Function 'get_RowHeights
> >
> > 'Use this Property to set or get rowheights
> > Public Property RowHeight(ByVal row As Integer) As Integer
> > Get
> > Try
> > Dim pi As PropertyInfo =
> > rowObjects(row).GetType().GetProperty("Height")
> > Return CInt(Fix(pi.GetValue(rowObjects(row), Nothing)))
> > Catch
> > Throw New ArgumentException("invalid row index")
> > End Try
> > End Get
> > Set(ByVal Value As Integer)
> > Try
> > Dim pi As PropertyInfo =
> > rowObjects(row).GetType().GetProperty("Height")
> > pi.SetValue(rowObjects(row), Value, Nothing)
> > Catch
> > Throw New ArgumentException("invalid row index")
> > End Try
> > End Set
> > End Property
> >
> > Thanks a lot for helping me.
> >
> >
> >
> >
> >
> > "Ken Tucker [MVP]" wrote:
> >
> > > Hi,
> > >
> > > I converted the grid in the article dragging and dropping datagrid
> > > columns to vb.net. Noticed get_Datagridsrows method doesnt work until the
> > > grid had drawn itself.
> > >
> > >
> > > Ken
> > > -----------------
> > > "Dennis" <(E-Mail Removed)> wrote in message
> > > news:054949F8-D685-4BB6-A9FF-(E-Mail Removed)...
> > > I have a class that inherits from DataGrid. I can set the rowheights in a
> > > DataGrid by tappig into the "get_Datagridrows" method. However, this does
> > > not work for classes that inherit from DataGrid. Anyone know how to do this
> > > on derived classes? I find it apalling that Microsoft provided a DataGrid
> > > that is so inflexible!
> > >
> > > --
> > > Dennis in Houston
> > >
> > >
> > >
>
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