When I stop to select the node, is shaded. 

This time, I do the dragdrop from the ListView to Treeview. 

In return the default backcolor of treeview node.





RadTreeNode _previousNode = null;

    private void tvwExplorer_DragOver(object sender, DragEventArgs e)
    {
      if (this._previousNode != null)
      {
        this._previousNode.BackColor = SystemColors.HighlightText;
        this._previousNode.ForeColor = SystemColors.ControlText;
      }

      Point pt = ((RadTreeView)sender).PointToClient(new Point(e.X, e.Y));      
      RadTreeNode tn = this.tvwExplorer.GetNodeAt(pt);
      if (tn != null)
      {
        tn.BackColor = SystemColors.Highlight;
        tn.ForeColor = SystemColors.HighlightText;
      }
      this._previousNode = tn;
    }

I'm trying to make a gridview object dynamic so I don't have to update and distribute a binary every time I want to change the grid construction.

Background:
1) database table with information about reports called GeotechReports
2) database table with information about each field in GeotechReports called GeotechSetup
3) gridview object called GeotechGrid that has AutoGenerateColumns="True"
4) listbox object called GeotechHideColListbox that is bound to GeotechGrid to set the content and state of each listbox member

Information I need from a table, but can't seem to get into the grid or listbox:
1) The GeotechSetup table has two fields of interest: header and visibility. I want to somehow grab the header from this table for the grid to use so the database field name isn't the column header. Since the data is in GeotechReports and the header name is in GeotechSetup (different tables), I don't know how to make the grid understand to look at another datacontext/database table.
2) I want to change the listbox state in the same manner as above. By that I mean I want to set the state based on the visibility field in GeotechSetup.

Here's the relevant xaml:




Essentially what I'm asking is how do I programmatically get access to GeotechGrid and then update each column with the header information stored in GeotechSetup? Here's what I've got so far. I know it accesses the GeotechSetups context as expected from the rlinq object because I displayed x.Fieldname and x.Fieldheader to a message box.


I don't need the communication to be in twoway mode. I'm only interested in doing this to set column default states on first load.

Hi,

I've added GridViewImageColumn and am displaying the image from local path using
Bitmap.FromFile(this.Value.ToString()); as was specified in one of your links.That is working fine.

The issue here is that the images can be of varying sizes, hence the row height is not uniform. We need to either generate thumbnails for these images and then display in the column,
Is there any way to specify the height and width for the Image so that it would resize accordingly without getting truncated.

I'm creating a PDF file using the PdfStamper in iTextSharp and return the PDF as a memorystream object to the calling function, that is then used to display the PDF in Teleriks PDF Viewer Component for WinForms. That's the objective.Right now, creating the PDF works as it should, and it returns the data to the Calling function, and in the Calling function, should I write the memorystream contents to a file stream and then open it in Adobe Reader Everything looks just fine.However, if I choose to display the PDF in the PDF Viewer Control I just get an "Unsupported Stream type" error.Now, I figured something was wrong in the PDF data so I decided to create the PDF file, save it to disk, then read it to a memorystream in the Calling function and display that memorystream in the PDF Viewer and that, for some to me unknown reason, works.... I really can't get my head around this and need some help.

So, this won't work:


But this WILL work:

But why? I'd rather keep it all in memory and let the user save the resulting PDF if he/she so wishes than having to write it to disk and then displaying it.
Am I missing some crucial step here?

Hi,

I have a stacked100 bar chart.  It "seems" to be structured the way I want it structured, it's just the colors aren't contrasting.

I did a mouseover on the "Jan 2014" so you can see it is indeed breaking it into the percentages properly (see attached).

How do I get the colors to contrast or did I simply structure the code incorrectly? (admittedly series and categories confuse me at times)

Thanks for your help.

Code:
            DataTable dt = new DataTable();
            dt = f.CallStoredProcedure("rptHitRate_Chart");
            
            BarSeries b1 = new Telerik.WinControls.UI.BarSeries();
            BarSeries b2 = new Telerik.WinControls.UI.BarSeries();

            b1.CombineMode = ChartSeriesCombineMode.Stack100;
            //b2.CombineMode = ChartSeriesCombineMode.Stack100;        

            chartHitRate_Monthly.Series.Add(b1);

            foreach (DataRow dr in dt.Rows)
            {
                CategoricalDataPoint cdp = new CategoricalDataPoint((double)dr["ApprovalRate"], dr["DateGroup"]);
                CategoricalDataPoint cdp2 = new CategoricalDataPoint((double)dr["DeclineRate"], dr["DateGroup"]);

                b1.DataPoints.Add(cdp);
                b1.DataPoints.Add(cdp2);
            }  

data layout:
DateGroup  ApprovalRate DeclineRate
Jan 2014 0.368421052631579 0.631578947368421
Feb 2014 0.75 0.25
Mar 2014 0.568965517241379 0.431034482758621
Apr 2014  0.423728813559322 0.576271186440678
May 2014 0.392857142857143 0.607142857142857
Jun 2014 0.457627118644068 0.542372881355932
Jul 2014 0.433962264150943 0.566037735849057
Aug 2014 0.315789473684211 0.684210526315789

I know this may seem like a ridiculous question, I may be missing something, but can someone explain to me what the point of the "Download..." and "Browse..." buttons are in the Solution Upgrade Wizard?

There's two things I can think of:

    a) the browse button is meant for me to select a new location then click the download button to download the new version, or
    b) the browse button is for me to select a folder where the assemblies currently exist and upgrade them with the download button

Here's why (in it's current form) it doesn't make sense or is just very unintuitive:

In both cases, the flow of the form is really strange.  Typically entry fields would go from top-down, left-right - or - left-right, top-down.  This upgrade form goes right-to-left.

That's not the real issue (but for a company who provides controls for helping with UX, you would think UX would be important in their own forms ;-) ... ).

I assumed I could click Browse, create a folder (why else would there be a "New Folder" option in the Folder Browse dialog?), and then download the assemblies to that location.  Is that assumption correct?

If that assumption is correct, then I think there's a bug or something, because I created a new folder, clicked the download button (which tells me it was already up to date), and my folder is empty.  See attached screenshots ...

Thank you

When I import text into my rich text control (2014.2.715), the custom dictionary is lost.

I'm using the following code:
var provider = new RtfFormatProvider();
rtf.Document = provider.Import(value);

I'm using the following to set my custom dictionary:
var culture = CultureInfo.GetCultureInfo("en-AU");
var checker = (DocumentSpellChecker)rtf.SpellChecker;
if (!(checker.GetDictionary(culture) is AustralianDictionary))
{
checker.AddDictionary(new AustralianDictionary(), culture);
}
rtf.SpellChecker.SpellCheckingCulture = culture;

Am I doing something wrong?  What is the correct way to set a custom dictionary?

Hello Again...

I want to be able to hide a Group in the Group By.

I am binding the grid to a custom business object.  For example:

​class PermissionBinding
{
     public string PermissionName { get; set; }
     public string PermissionGroup { get; set; }
}

And the data in a BindingList<PermissionBinding> (#id, Permission Name, Permission Group) has:
#0:    Create, Group 1
#1:    Edit, Group 1
#2:    View, Group 1
#3:    Delete, Group 1
​#4:    Create, Group 2
#5:    Edit, Group 2
#6:    View, Group 2
#7:    Delete, Group 2

... and so on.

So I bind the list to the grid via a BindingSource (all set up via the designer).  But I create my list and set it to the binding source using:

_permissions = CreatePermissionBinding();
this.permissionBindingBindingSource.DataSource = _permissions;

I use Custom Grouping to group the rows under each Permission group nicely using the following:

Field Members (used to order the Groups and format the group name)
private const string GroupSortFormat = "{0:D4}. {1}|{1}";
        private Dictionary<string, int> _groupOrder = new Dictionary<string, int>()
        {
            { "Group 1", 1 },
            { "Group 2", 2 },
            { "Group 3", 3 },
       };

Form Constructor
this.PermissionGridView.CustomGrouping += PermissionGridView_CustomGrouping;
this.PermissionGridView.GroupSummaryEvaluate += PermissionGridView_GroupSummaryEvaluate;
this.PermissionGridView.EnableCustomGrouping = true;            
this.PermissionGridView.GroupDescriptors.Add(new Telerik.WinControls.Data.GroupDescriptor("PermissionGroup"));

Event Handlers

        private void PermissionGridView_GroupSummaryEvaluate(object sender, Telerik.WinControls.UI.GroupSummaryEvaluationEventArgs e)
        {
            if (e.Value == null)
            {
                e.FormatString = e.Group.Key.ToString().Split('|')[1]; // strip out the order from the format string to show the group name
            }
        }
        
        private void PermissionGridView_CustomGrouping(object sender, Telerik.WinControls.UI.GridViewCustomGroupingEventArgs e)
        {
            var obj = (PermissionBinding)e.Row.DataBoundItem;
            e.GroupKey = string.Format(GroupSortFormat, _groupOrder[obj.PermissionGroup], obj.PermissionGroup); // make sure group is ordrered via string format
        }

Now suppose I want to hide Group 2.  Can I do it?

I have tried the following which only hides the rows in a group - it still shows the grouping Group 2:
foreach (var row in this.PermissionGridView.Rows)
{
        row.IsVisible = groups.Contains((row.DataBoundItem as PermissionBinding).PermissionGroup) ? true : false;
} 

I have successfully done it by removing the groups from the binding source BindingList<PermissionBinding>.  But I see this as a view/filter on the data - suppose this is triggered by a user clicking a button.  I really don't want to create the data source each time as it is populated through the database.  Although it is not a major issue.  I could maintain 2 lists - one main list and one filtered.  But I was wondering if there was something in the Grid I had obviously missed to do this.

NOTE:  Telerik is seriously kicking a competitors product into touch the more I do with it ;)!

Thanks,

Andez

Hi,

I have the following

provider.ColumnGroupDescriptions.Add(new PropertyGroupDescription() { PropertyName = "DispatchDate", GroupComparer = new GroupNameComparer() });
provider.ColumnGroupDescriptions[0].SortOrder = Telerik.Pivot.Core.SortOrder.Ascending;

DispatchDate is a Datetime field.

So far so good.

But can I format the date field to read MM YY (May 14) in the column header?

I tried to change the DispatchDate to a string, but that messes up the sort, so if I could format the date field that would be great.

Thanks
Shaun.

Hi,

When creating a new solution with an empty RadForm, the initial memory usage is around 30-40MB.
Is there anyway to reduce this memory usage?

Thanks in advance.

~ Erez