Questions on UI for WinForms Forum

2 answers

185 views

Timeline Footer

Hello,

I was wondering if it was possible to have a footer at the bottom of the timeline view. For example, it could show the number of appointments in that day or month.

Scheduler and Reminder

answered on 08 Feb 2012

3 answers

269 views

Filtering on Guid columns

Hi Everyone!

I started using the RadGridView. The grid is populated by a DataTable containing string, boolean and guid values for the different rows.

I mapped the guid columns to GridViewComboBoxColumns whose DataSources are DataTables containing the Description for the Guids (see code).

DataTable data = DbTools.GetExistingFawisGroups();

DataTable clGroups = DbTools.GetBBlockGroups();

DataTable clCategories = DbTools.GetBBlockCategories();

GridViewComboBoxColumn colGroup = new GridViewComboBoxColumn();

colGroup.Name = "columnGroupId";

colGroup.HeaderText = "Gruppe";

colGroup.FieldName = "bBlockGroupId";

colGroup.ValueMember = "id";

colGroup.DisplayMember = "descript";

colGroup.DataSource = clGroups;

this.radGridView.Columns.Add(colGroup);

GridViewComboBoxColumn colCat = new GridViewComboBoxColumn();

colCat.Name = "columnCategoryId";

colCat.HeaderText = "Kategorie";

colCat.FieldName = "bBlockCategoryId";

colCat.ValueMember = "id";

colCat.DisplayMember = "descript";

colCat.DataSource = clCategories ;

this.radGridView.Columns.Add(colCat);

this.radGridView.DataSource = this.data;

this.data.AcceptChanges();

Now filtering (GridView standard filters) for all columns except the mapped guid columns is working fine. When i click on the filter icon in the column headers of the guid columns, i see the descriptions representing the guids and can select them. But by clicking ok i get the following exeption:

Telerik.Data.Expressions.ParserException: Missing operator before a operand.

bei Telerik.Data.Expressions.ExpressionParser.TryParse(Boolean enableExceptions, ExpressionNode& expressionNode)

bei Telerik.Data.Expressions.ExpressionParser.Parse(String expression, Boolean caseSensitiveLike)

bei Telerik.WinControls.Data.RadCollectionView`1.set_FilterExpression(String value)

bei Telerik.WinControls.UI.GridViewFilterDescriptorCollection.ApplyFilter()

bei Telerik.WinControls.UI.GridViewFilterDescriptorCollection.OnCollectionChanged(NotifyCollectionChangedEventArgs args)

bei Telerik.Collections.Generic.NotifyCollection`1.InsertItem(Int32 index, T item)

bei Telerik.WinControls.UI.GridViewFilterDescriptorCollection.InsertItem(Int32 index, FilterDescriptor item)

bei System.Collections.ObjectModel.Collection`1.Add(T item)

bei Telerik.WinControls.UI.GridViewDataColumn.SetFilterDescriptor(FilterDescriptor value)

bei Telerik.WinControls.UI.RadListFilterMenuProvider.SetFilterDesriptor(GridViewDataColumn dataColumn, FilterDescriptor descriptor)

bei Telerik.WinControls.UI.RadListFilterMenuProvider.SetFilterDescriptor(FilterDescriptor descriptor)

bei Telerik.WinControls.UI.RadListFilterMenuProvider.ButtonOK_Click(Object sender, EventArgs e)

bei System.EventHandler.Invoke(Object sender, EventArgs e)

bei Telerik.WinControls.RadItem.OnClick(EventArgs e)

bei Telerik.WinControls.UI.RadButtonItem.OnClick(EventArgs e)

bei Telerik.WinControls.RadItem.DoClick(EventArgs e)

bei Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)

bei Telerik.WinControls.RadElement.RaiseRoutedEvent(RadElement sender, RoutedEventArgs args)

bei Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)

bei Telerik.WinControls.RadElement.RaiseRoutedEvent(RadElement sender, RoutedEventArgs args)

bei Telerik.WinControls.RadElement.DoMouseUp(MouseEventArgs e)

bei Telerik.WinControls.ComponentInputBehavior.OnMouseUp(MouseEventArgs e)

bei Telerik.WinControls.RadControl.OnMouseUp(MouseEventArgs e)

bei System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)

bei System.Windows.Forms.Control.WndProc(Message& m)

bei System.Windows.Forms.ScrollableControl.WndProc(Message& m)

bei Telerik.WinControls.RadControl.WndProc(Message& m)

bei Telerik.WinControls.UI.RadPopupControlBase.WndProc(Message& m)

bei System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)

bei System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)

bei System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

bei System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)

bei System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)

bei System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)

bei System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)

bei System.Windows.Forms.Application.RunDialog(Form form)

bei System.Windows.Forms.Form.ShowDialog(IWin32Window owner)

bei System.Windows.Forms.Form.ShowDialog()

bei SuS.Tobs.Forms.Mainframe.buttonItemFawisGroupEdit_Click(Object sender, EventArgs e) in D:\Entwicklung\C#\Projects\tobs\Project\SuS.Tobs\Sources\Forms\Mainframe.cs:Zeile 580.

bei DevComponents.DotNetBar.BaseItem.RaiseClick(eEventSource source)

bei DevComponents.DotNetBar.BaseItem.InternalMouseUp(MouseEventArgs objArg)

bei DevComponents.DotNetBar.PopupItem.InternalMouseUp(MouseEventArgs objArg)

bei DevComponents.DotNetBar.ButtonItem.InternalMouseUp(MouseEventArgs objArg)

bei DevComponents.DotNetBar.BaseItem.InternalMouseUp(MouseEventArgs objArg)

bei DevComponents.DotNetBar.ItemContainer.InternalMouseUp(MouseEventArgs objArg)

bei DevComponents.DotNetBar.ItemControl.OnMouseUp(MouseEventArgs e)

bei DevComponents.DotNetBar.RibbonBar.OnMouseUp(MouseEventArgs e)

bei System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)

bei System.Windows.Forms.Control.WndProc(Message& m)

bei System.Windows.Forms.ScrollableControl.WndProc(Message& m)

bei System.Windows.Forms.ContainerControl.WndProc(Message& m)

bei DevComponents.DotNetBar.ItemControl.WndProc(Message& m)

bei System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)

bei System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)

bei System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

bei System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)

bei System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)

bei System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)

bei System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)

bei System.Windows.Forms.Application.Run(Form mainForm)

bei SuS.Tobs.Application.Program.StartApplication(SplashScreenForm form) in D:\Entwicklung\C#\Projects\tobs\Project\SuS.Tobs.Application\Sources\Common\Program.cs:Zeile 142.

The exeption "Missing operator

before a operand" always contains a part of the guid, in this case it's just the "a", but it's always different an definitly a part of the guid.

What can i do to make filtering work for all my columns in the grid view? The posting (http://www.telerik.com/community/forums/winforms/gridview/cannot-use-a-guid-as-a-valuemember-with-filtering-on-radgridview.aspx) seems to point to the same problem, but doesn't solve my problem because by appling the described solution none of my filterings are working any more.

Kind Regards,
Michael

GridView

answered on 08 Feb 2012

2 answers

431 views

Binding the textBox border color.

Hello,

In order to change the border color of the TextBox i use:
textBox1.TextBoxElement.Border.ForeColor = Color.Red;
How can i achieve this using data binding?

Looking forward to your reply.

TextBox

answered on 08 Feb 2012

6 answers

331 views

Hide MDIButton of RadRibbonBar in RadRibbonForm

Hi,

I need to hide the MDIButtons (Minimize, Restore/Maximize, Close buttons) of RadRibbonBar in RadRibbonForm. I tried using this code (radRibbonBar1.RibbonBarElement.MDIbutton.Visibility = Telerik.WinControls.ElementVisibility.Collapsed;) but it always shows whenever I resize or maximize the form or show another child form. I attached a screen shot.

Many thanks,

Ian

Edit: I'm using version 2011.1.11.315

RibbonBar

answered on 08 Feb 2012

2 answers

174 views

Question about navigating root element tree

Hi,

I would like to programmatically get to some of the hidden properties that I can see in the Element Hierarchy Editor, but don't see an obvious way to do so.

For instance, a RadButton has a root element and then a Fill Primitive, Layout, Focus, Border, etc. Drop down lists have other goodies in there. How does one get there in c#?

Is it something like this, but then casting it to something else? For instance..
(FillPrimitive) btnFoo.RootElement.children[0]

It would be really nice to know how to navigate the tree because there are a lot of properties that we could take advantage of.
Thanks.
Jason

General Discussions

answered on 08 Feb 2012

6 answers

170 views

visible area in gridview

Hello..
I want to know how many rows there are in the visible area in gridview..
how can I do that?

this is for controlling load of rows.. to get better performance..
I want to load 30 rows each scrolling..

GridView

answered on 07 Feb 2012

2 answers

221 views

Problems with visualizing subitems

Hello together,

I'm having some difficulties with a RadListView. My RadListView has 3 Columns: 1 for displaying an icon, 1 for a filename and the third for the author.
My problem is, that only the first column is displayed and all the text columns are empty. I don't know why. Perhaps someone of you can help. Here is the code:

ImageList MyImageList = new System.Windows.Forms.ImageList();

MyImageList.Images.Add(global::Test_SharePoint_DocumentList.Properties.Resources.icgen);

MyImageList.ImageSize = new Size(16, 16);

lst_Files.ViewType = Telerik.WinControls.UI.ListViewType.DetailsView;

lst_Files.ShowGridLines = true;

lst_Files.FullRowSelect = true;

lst_Files.Columns.Add("File","File");

lst_Files.Columns.Add("Filename", "Filename");

lst_Files.Columns.Add("Author", "Author");

lst_Files.Columns[0].Width = 30;

lst_Files.SmallImageList = MyImageList;

foreach(Microsoft.SharePoint.SPFile file in files)

{

for (int j = 0; j < MyImageList.Images.Count; j++)

{

Telerik.WinControls.UI.ListViewDataItem item2 = new Telerik.WinControls.UI.ListViewDataItem();

item2.Image = global::Test_SharePoint_DocumentList.Properties.Resources.icgen;

item2.ImageIndex = j;

item2.Tag = mysite.Url + "/" + file.Name;

Telerik.WinControls.UI.ListViewDataItem item3 = new Telerik.WinControls.UI.ListViewDataItem();

item3.Text = file.Name;

item3.Value = file.Name;

Telerik.WinControls.UI.ListViewDataItem item4 = new Telerik.WinControls.UI.ListViewDataItem();

item4.Text = file.Author.ToString();

item4.Value = file.Author.ToString();

Telerik.WinControls.UI.ListViewSubDataItemCollection subcol = new Telerik.WinControls.UI.ListViewSubDataItemCollection(item2);

subcol.Add(item3);

subcol.Add(item4);

lst_Files.Items.Add(item2);

}

Count++;

}

And that's how it looks like in debug (see attachment):

ListView

answered on 07 Feb 2012

2 answers

194 views

How to clean Excel like filters

Hi,

I have enabled the Excel like filtering, but every time I change the DataSource on the radGridView, the filter for a column is not updated. I have tried to clean the filters using:

MasterTemplate.FilterDescriptors.Clear();

MasterTemplate.FilterExpressions.Clear();

But those collections are empty, since I'm not creating my own filters. Any help will be appreciated.
Thanks

GridView

answered on 07 Feb 2012

5 answers

261 views

Grouping by nested object

Hi,
I am trying to group my gridview data by a nested object like this:

DataSource = List<Person>

GroupExpression: Address.Suburb as Sub Group By Sub

This results in the data being correctly sorted but the grid will not display any group headers. Is there a way to do this?

thanks

GridView