Hi,

I can't get the pan/scroll functionality to work when reloading the chartview.

Please see the code below. When I call the LoadChart function for the first time in form load event, it works fine. When it is called for the second time in button click event, the pan/scroll does not work (zoom works, however). As You can see, I clear the series and axes in the beginning, I tried both axes.clear and axes.purge, neither of them helps.


Regards,
Pirjo

Hello,

I used to validate the presence of the scrollbars in the DataGridView by doing this:




but with the RadGridView I'm unable to do this... 

Is there an alternative ?

Thank you

Hi,

I've noticed that the RadTreeView font in the latest Q3 2013 release seems different to previous releases.  It's almost as if it's not anti-aliased (see attached screenshot of both Q2 and Q3 2013 treeviews in the Telerik demo app).

Any info would be much appreciated.

Regards,

Frazz 

hi
i want to filter the grid of multicolumncombobox by using filtering row so i use this code
 DataTable dt = new DataTable();
            dt.Columns.Add("id");
            dt.Columns.Add("Name");
            dt.Rows.Add("1", "a");
            dt.Rows.Add("2", "b");
            dt.Rows.Add("3", "c");
            radMultiColumnComboBox1.DataSource = dt;
            radMultiColumnComboBox1.EditorControl.EnableFiltering = true;
            radMultiColumnComboBox1.EditorControl.EnableCustomFiltering = true;
            radMultiColumnComboBox1.EditorControl.ShowFilteringRow = true;    ///by using this we only can see the filtering row

so i can see the filteringrow but it dosent work .i cant filter the grid of multicolumn and i cant do customfiltering like some thing we do in radgridviews.
please help me if you know a way to do it

Hello, 
I am using RadControls for WinForms 2011 Q3 
RadGridView,  it is in unbound mode.
 
I want to reorder the row. Say I drag the row 1 and drop it to row 4. 
but it does not work. I guess somehow I must miss something, please help.  thanks !

public init()
{
            InitializeComponent();
            InitializePreviewGrid();
            SubscribeForGridEvents(radGridViewPreview);    
}
        List<PreviewItem> _previewLists = new List<PreviewItem>();
        private void InitializePreviewGrid()
        {
            radGridViewPreview.AutoGenerateColumns = false;
            var imageCol = new GridViewImageColumn("DeleteIcon", "DeleteIcon");
            imageCol.HeaderText = "";
            imageCol.Width = 30;
            radGridViewPreview.Columns.Add(imageCol);

            var col = new GridViewTextBoxColumn("DisplayStr", "DisplayStr");
            col.Width = 350;
            radGridViewPreview.Columns.Add(col);

            col = new GridViewTextBoxColumn("ValueStr", "ValueStr");
            col.IsVisible = false;
            radGridViewPreview.Columns.Add(col);

            radGridViewPreview.AllowDeleteRow = false;
            radGridViewPreview.AllowAddNewRow = false;
            radGridViewPreview.AllowEditRow = false;
            radGridViewPreview.AutoScroll = true;
            radGridViewPreview.AllowAutoSizeColumns = true;

            radGridViewPreview.MasterTemplate.AllowRowReorder = true;
            radGridViewPreview.ReadOnly = true;
            radGridViewPreview.MultiSelect = true;
            radGridViewPreview.MasterTemplate.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;

            radGridViewPreview.GridBehavior = new CustomGridBehavior();
        }

        private void SubscribeForGridEvents(RadGridView grid)
        {
            dragDropService = grid.GridViewElement.GetService<RadDragDropService>();
            dragDropService.PreviewDragOver += dragDropService_PreviewDragOver;
            dragDropService.PreviewDragDrop += dragDropService_PreviewDragDrop;
            dragDropService.PreviewDragHint += dragDropService_PreviewDragHint;
            dragDropService.PreviewDropTarget += dragDropService_PreviewDropTarget;
            dragDropService.PreviewDragStart += dragDropService_PreviewDragStart;
        }

       void dragDropService_PreviewDragStart(object sender, PreviewDragStartEventArgs e)
        {
            //throw new NotImplementedException();
        }

        void dragDropService_PreviewDropTarget(object sender, PreviewDropTargetEventArgs e)
        {
            //throw new NotImplementedException();
        }
        
        private void dragDropService_PreviewDragDrop(object sender, RadDropEventArgs e)
        {
            var rowElement = e.DragInstance as GridDataRowElement;
            if (rowElement == null)
            {
                return;
            }

            var dropTarget = e.HitTarget as RadItem;
            var targetGrid = dropTarget.ElementTree.Control as RadGridView;
            if (targetGrid == null)
            {
                return;
            }

            var dragGrid = rowElement.ElementTree.Control as RadGridView;
            if (targetGrid != dragGrid)
            {
                e.Handled = true;

                var behavior = (CustomGridBehavior)dragGrid.GridBehavior;
                var dropTargetRow = dropTarget as GridDataRowElement;
                int index = dropTargetRow != null ? GetTargetRowIndex(dropTargetRow, e.DropLocation) : targetGrid.RowCount;
                MoveRows(targetGrid, dragGrid, behavior.SelectedRows, index);
            }
        }

        private void dragDropService_PreviewDragOver(object sender, RadDragOverEventArgs e)
        {
            if (e.DragInstance is GridDataRowElement)
            {
                e.CanDrop = e.HitTarget is GridDataRowElement || e.HitTarget is GridTableElement || e.HitTarget is GridSummaryRowElement;
            }
        }

        private void dragDropService_PreviewDragHint(object sender, PreviewDragHintEventArgs e)
        {
            GridDataRowElement dataRowElement = e.DragInstance as GridDataRowElement;

            if (dataRowElement != null && dataRowElement.ViewTemplate.MasterTemplate.SelectedRows.Count > 1)
            {
                //e.DragHint = new Bitmap(this.imageList1.Images[6]);
                e.UseDefaultHint = false;
            }
        }

        private void MoveRows(RadGridView targetGrid, RadGridView dragGrid, IList<GridViewRowInfo> dragRows, int index)
        {
            for (int i = dragRows.Count - 1; i >= 0; i--)
            {
                GridViewRowInfo row = dragRows[i];

                if (row is GridViewSummaryRowInfo)
                {
                    continue;
                }

                GridViewRowInfo newRow = targetGrid.Rows.NewRow();
                this.InitializeRow(newRow, row);
                targetGrid.Rows.Insert(index, newRow);
                row.IsSelected = false;
                dragGrid.Rows.Remove(row);
                index++;
            }
        }

        private void InitializeRow(GridViewRowInfo destRow, GridViewRowInfo sourceRow)
        {
            destRow.Cells["DisplayStr"].Value = sourceRow.Cells["DisplayStr"].Value;
            destRow.Cells["ValueStr"].Value = sourceRow.Cells["ValueStr"].Value;
        }

        private int GetTargetRowIndex(GridDataRowElement row, Point dropLocation)
        {
            int halfHeight = row.Size.Height / 2;
            int index = row.RowInfo.Index;

            if (dropLocation.Y > halfHeight)
            {
                index++;
            }

            return index;
        }

Hi,

I'm trying to intercept the paste event when the user has pressed control -v, to paste the clipboard contents as plain text.
But I can't work out where to start ?

Thanks
Euan

I have what I hope is a simple problem.   I have a simple WinForms application in which I'm providing a generic ObservableCollection<> of a simple public business object type as a data source for a RadGridView (version Winforms 2011_1_11_419), .  

For whatever reason, i cannot get it to auto-sort by clicking on the column headers.  (My understanding after reading the Help is that this should be automatic if the "GridView.EnableSorting" and "GridView.MasterTemplate.EnableSorting" properties are both true).   I do have AutoGenerateColumns also set to True, since the business object is still evolving and gaining/adding/changing properties in between builds..

I've tried setting the grid's DataSource property directly to the ObservableCollection<MyObjectType>.  I've tried creating an intermediate BindingSource and setting the grid's DataSource to that.   I've tried creating several SortDescriptors for the columns on which I most need to sort.   I've tried removing all such SortDescriptors.   I've tried creating a custom SortableObservableCollection (which works in binding in WPF) instead of the ObservableCollection.   Etc. 

The data always displays correctly in the GridView; but doesn't sort or show sort direction indicators in the column headers.

There has to be something simple I'm missing.

Thanks!
-Bob

from
Demo Application - RadControls for WinForms.
Gridview -> Custom Painting.

I want to move the drawing image in grid view.
- change cursor on mouse over
- drag and drop drawing
- show image moving 

please help me...

Hello,

We currently trying the controls and encountered some bugs..
On the form load event, when setting image list to the toolbar and imagekey to a specific menu button some of the buttons does not get refresh and some do..

Is there a way to force refresh to all the buttons after changing the image key?

Thank you

With RadControls 2008 Release 3 1204 (control version 8.1.0.0) I'm facing the following issue:

I handle the ValueChanging and ValueChanged events of a GridViewComboBoxColumn in a data bound GridView control. I set e.Cancel=true in the ValueChanging event handler to prevent modification of the cell value. I would expect not to receive the ValueChanged event in this case - but I'm wrong: The event will be fired although I requested to cancel the changes. Is this intended?

The second thing I don't understand is: why are the Changing / Changed events actually fired even if the cell value did not change at all?

Assume the following scenario: As I said above I have a data bound GridView with an also data bound GridViewComboBoxColumn. I drop down a cell's editor and select the entry with the same value as the cell already contains. The Changing / Changed events will be fired. Even worse, the bound data source (in my case a DataSet/DataTable) will also be changed and contains changed data rows after this - but all values of the row are obviously the same as before.

Now I could at least try to compare the old and new values of the cell manually and cancel the editing if I find that they are equal - but this won't work because of the behaviour described on top.

So could tell my if this is a bug - or at least how I can cancel the cell editing and - more important - the modification of the bound data source?

Regards,
ReneMT