Questions on UI for WinForms Forum

1 answer

224 views

Hi, I'm evaluating the RadScheduler for a project at the moment and it looks pretty good, but I need to display multiple day views (same day, different people) side by side and hide the headers.

Although the documentation is a bit sparse, I would have thought that the ShowDayHeaders, or ShowHeader on the active view would have controlled this, but it doesn't appear to work. Any hints as to how to achieve this?

                            Dim sched As New RadScheduler         
                    sched.BackColor = System.Drawing.Color.White         
                    sched.DataSource = Nothing         
                    sched.Dock = System.Windows.Forms.DockStyle.Left         
                    sched.HighlightToday = True         
                    sched.Location = New System.Drawing.Point(0, 0)         
                    sched.Name = "RadScheduler1"         
                    sched.Size = New System.Drawing.Size(200, 560)         
                    sched.TabIndex = 0         
                    sched.Text = "RadScheduler1"         
                    sched.AllowDrop = True         
                     
                     
                    Me.pnlSchedule.Controls.Add(sched)         
                     
                    Dim view As Telerik.WinControls.UI.SchedulerDayView         
                     
                    view = TryCast(sched.ActiveView, Telerik.WinControls.UI.SchedulerDayView)         
                    If view IsNot Nothing Then         
                        view.StartDate = DateTime.Today         
                        view.DayCount = 1         
                        view.ShowAllDayArea = False         
                        view.ShowDayHeaders = False         
                        view.ShowHeader = False         
                    End If         

I'm also trying to find a way to limit the displayed time range for the day, so it limits the view to WorkTime or a VisibleTime property?

One last question. I'll by trying to implement drag/drop between two+ schedule controls, I haven't started developing this yet, but I suspect that there is no underlying support for this, but it would be nice to know if it is achievable before I start playing in this area?

Scheduler and Reminder

answered on 23 Feb 2009

2 answers

91 views

"Save As" Vista-like panel bar

    
            Hi, I am evaluating Telerik controls for Windows Forms, and what I want to achieve is something like the left-hand side panel on the "Save-As" dialog window when in Windows Vista (try notepad and do 'save as'). Is basically something like:  
        
            |----------------------------------|  
        
            |Favorites Links                   |  
        
            | {Content}                        |  
        
            |                                  |  
        
            |                                  |  
        
            |                                  |  
        
            |                                  |  
        
            -----------------------------------  
        
            | Folders                        ^ |  
        
            -----------------------------------  
        
            so, "Favorites" remains visible all the time (locked), and "Folders" (docked on the bottom) expand upwards without covering the whole "Favorites" area like:  
        
            |----------------------------------|  
        
            |Favorites Links                   |  
        
            | {Some Content}                   |  
        
            |                                  |  
        
            -----------------------------------  
        
            | Folders                        V |  
        
            -----------------------------------  
        
            | {Content}                        |  
        
            |                                  |  
        
            |                                  |  
        
            |                                  |  
        
            -----------------------------------  
        
            Then you click on the "V" againg and the "Folders" group docks back at the bottom again.

I will appreciate any input on this.

Panelbar (obsolete as of Q2 2010)

answered on 22 Feb 2009

1 answer

115 views

retrieve image from image cell

I can retrieve an image from an image cell with the following

    
            myImage = radGrid.Rows(r).Cells(c).CellElement.Image

Unfortunately this produces an error when attempting to retrieve an image from a cell that isn't currently visible on screen.

How do you retrieve an image from a cell that isn't visible?

I can retrieve the cell.value from a cell that isn't visible, but have trouble converting cell.value to an image.

Thank you for your help.

GridView

answered on 20 Feb 2009

4 answers

476 views

Multi-select Grid Rows Copy & Paste

Hi,

How can I implement a copy & paste of rows (multiple selection) in the Grid?

Thanks,

Patrick.

GridView

answered on 20 Feb 2009

1 answer

169 views

Hierarchy Child Combo Box

Has a bug been reported yet for using a combo box for children in a hierarchial grid? I wanted to allow the user the ability to change information for a child from a drop down box. When I selected the combo box, the list popped up the correct select was selected, but, as soon as I moved away from the box to another cell in the same row, the cell with the combo box was empty. If i went back to it, the new selected was still there, but as soon as I moved away from that cell, nothing appeared to the user. I went so far as to cut and paste the code from a working parent combo box and still couldn't get it to work. I have had to create a separate form now to allow the user to change this information and just display the "result' as a string in the grid on the main form. Which brings me to another problem where I have to refresh the data sources to get the updated information which then collapses the hierarchy. How do I store the which parents are not collapsed so that I can return the grid to the state the user had it? I have to update the datasources for both the child and parent or else the information is not shown propoerly.

Susan

GridView

answered on 20 Feb 2009

4 answers

210 views

Cannot perform 'Like' operation on System.Boolean

Hi,
How do i programmatically set the filter for a column that is defined as type System.Boolean? So, far i have this but it does not work. Please advise.
thank you,
Bahram

FilterExpression filter = new FilterExpression();

filter.Predicates.Add(

FilterExpression.BinaryOperation.AND, GridKnownFunction.Contains, GridFilterCellElement.ParameterName);

filter.Parameters.Add(

GridFilterCellElement.ParameterName, "0");

this.radGView1.Columns["Active"].Filter = filter;

GridView

answered on 19 Feb 2009

1 answer

116 views

Mutiline in RadCombobox

Hi,

I want display two items in the radcombobox one below the other. Id in the first line and address in the next line. And also I am making loading of the combobox OnDemand. How to display the radcombo box items in different lines?

Thanks in advance,
Medac

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 19 Feb 2009

3 answers

185 views

exception: onmousedownright on basegridbehaviour

Hi,

VS2005

WinControls 2008Q3 1204

I get a null pointer exception when right clicking on a grid outside the rows.

I think I found the bug, if I set the selectionmode to cellselect it works fine.

if (this.GridControl.MultiSelect && this.GridControl.SelectionMode == GridViewSelectionMode.FullRowSelect)

{

if (!row.IsSelected)

{

this.GridControl.SelectedRows.Clear();

}

01:05:54:735 10 Exception .... Object reference not set to an instance of an object.

at Telerik.WinControls.UI.BaseGridBehavior.OnMouseDownRight(MouseEventArgs e)

at Telerik.WinControls.UI.BaseGridBehavior.OnMouseDown(MouseEventArgs e)

at Telerik.WinControls.UI.RadGridView.OnMouseDown(MouseEventArgs e)

at System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)

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

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

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

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

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

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

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

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

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

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

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

My grid:

//

// radGridView

//

this.radGridView.BackColor = System.Drawing.Color.Transparent;

this.radGridView.Cursor = System.Windows.Forms.Cursors.Default;

this.radGridView.Dock = System.Windows.Forms.DockStyle.Fill;

this.radGridView.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F);

this.radGridView.ForeColor = System.Drawing.SystemColors.ControlText;

this.radGridView.ImeMode = System.Windows.Forms.ImeMode.NoControl;

this.radGridView.Location = new System.Drawing.Point(0, 0);

this.radGridView.Margin = new System.Windows.Forms.Padding(0);

//

this.radGridView.MasterGridViewTemplate.AllowAddNewRow = false;

this.radGridView.MasterGridViewTemplate.AllowColumnChooser = false;

this.radGridView.MasterGridViewTemplate.AllowColumnReorder = false;

this.radGridView.MasterGridViewTemplate.AllowDragToGroup = false;

this.radGridView.MasterGridViewTemplate.AllowRowResize = false;

this.radGridView.MasterGridViewTemplate.Caption = null;

gridViewTextBoxColumn1.FieldAlias = "FileName";

gridViewTextBoxColumn1.FieldName = "FileName";

gridViewTextBoxColumn1.HeaderText = "Name";

gridViewTextBoxColumn1.HeaderTextAlignment = System.Drawing.ContentAlignment.MiddleLeft;

gridViewTextBoxColumn1.UniqueName = "FileName";

gridViewTextBoxColumn1.Width = 160;

gridViewDateTimeColumn1.DataType = typeof(System.DateTime);

gridViewDateTimeColumn1.FieldAlias = "DateCreated";

gridViewDateTimeColumn1.FieldName = "DateCreated";

gridViewDateTimeColumn1.HeaderText = "Date uploaded";

gridViewDateTimeColumn1.HeaderTextAlignment = System.Drawing.ContentAlignment.MiddleLeft;

gridViewDateTimeColumn1.SortOrder = Telerik.WinControls.UI.RadSortOrder.Ascending;

gridViewDateTimeColumn1.UniqueName = "DateCreated";

gridViewDateTimeColumn1.Width = 120;

gridViewTextBoxColumn2.FieldAlias = "FileType";

gridViewTextBoxColumn2.FieldName = "FileType";

gridViewTextBoxColumn2.HeaderText = "Type";

gridViewTextBoxColumn2.HeaderTextAlignment = System.Drawing.ContentAlignment.MiddleLeft;

gridViewTextBoxColumn2.UniqueName = "FileType";

gridViewTextBoxColumn2.Width = 110;

gridViewTextBoxColumn3.FieldAlias = "FileSize";

gridViewTextBoxColumn3.FieldName = "FileSize";

gridViewTextBoxColumn3.HeaderText = "Size";

gridViewTextBoxColumn3.HeaderTextAlignment = System.Drawing.ContentAlignment.MiddleLeft;

gridViewTextBoxColumn3.UniqueName = "FileSize";

gridViewTextBoxColumn3.Width = 100;

this.radGridView.MasterGridViewTemplate.Columns.Add(gridViewTextBoxColumn1);

this.radGridView.MasterGridViewTemplate.Columns.Add(gridViewDateTimeColumn1);

this.radGridView.MasterGridViewTemplate.Columns.Add(gridViewTextBoxColumn2);

this.radGridView.MasterGridViewTemplate.Columns.Add(gridViewTextBoxColumn3);

this.radGridView.MasterGridViewTemplate.EnableGrouping = false;

this.radGridView.MasterGridViewTemplate.ShowRowHeaderColumn = false;

this.radGridView.MultiSelect = true;

this.radGridView.Name = "radGridView";

this.radGridView.ReadOnly = true;

this.radGridView.RightToLeft = System.Windows.Forms.RightToLeft.No;

this.radGridView.ShowGroupPanel = false;

this.radGridView.Size = new System.Drawing.Size(443, 401);

this.radGridView.TabIndex = 0;

this.radGridView.Text = "radGridView";

this.radGridView.ThemeName = "Vista";

((Telerik.WinControls.UI.GridTableElement)(this.radGridView.GetChildAt(0))).CellSpacing = -1;

((Telerik.WinControls.UI.GridTableElement)(this.radGridView.GetChildAt(0))).DrawBorder = false;

((Telerik.WinControls.UI.GridTableElement)(this.radGridView.GetChildAt(0))).BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(255)))), ((int)(((byte)(255)))), ((int)(((byte)(255)))));

((Telerik.WinControls.UI.GridTableElement)(this.radGridView.GetChildAt(0))).DrawFill = true;

((Telerik.WinControls.UI.GridTableBodyElement)(this.radGridView.GetChildAt(0).GetChildAt(1))).DrawBorder = true;

((Telerik.WinControls.UI.GridTableBodyElement)(this.radGridView.GetChildAt(0).GetChildAt(1))).BackColor = System.Drawing.Color.White;

((Telerik.WinControls.UI.GridTableBodyElement)(this.radGridView.GetChildAt(0).GetChildAt(1))).DrawFill = false;

Question. Can I have the drop down show even if there are no rows in the grid? (add row?)

thanks

-j

GridView

answered on 19 Feb 2009

3 answers

262 views

RadListBox Slow to load

Hello,

I have been using a radlistbox in my form and trying to display image against each record. the problem is that it takes around 7 seconds to display around 2000 records, which is very slow. in one of the article i have read that RadListBox take less than one second to load 2000 records
I am using following lineof code to add the text and image to list.

foreach (string strConnectedItem in arrTemp)

{

RadListBoxItem item = new RadListBoxItem();

if (arrConnectedDLD.Count != 0 && arrConnectedDLD.Contains(strConnectedItem))

{

//arrConnectedDLDinMasterFile.Add(strConnectedItem);

////RadListBoxItem item = new RadListBoxItem();

item.Text = strConnectedItem;

item.Image = imageListLB.Images[1]; ;

item.Value = strConnectedItem;

arrDLDList.Add(strConnectedItem +

"." + "1");

radLbDLD.Items.Add(item);

radCbDLD.Items.Add(

new RadComboBoxItem(strConnectedItem, strConnectedItem));

}

else

{

// arrNotConnectedDLD.Add(strConnectedItem);

//RadListBoxItem item = new RadListBoxItem();

item.Text = strConnectedItem;

item.Image = imageListLB.Images[0];

item.Value = strConnectedItem;

arrDLDList.Add(strConnectedItem +

"." + "0");

radLbDLD.Items.Add(item);

radCbDLD.Items.Add(

new RadComboBoxItem(strConnectedItem, strConnectedItem));

}

item.BorderThickness =

new System.Windows.Forms.Padding(1);

item.CanFocus =

true;

//item.Margin = new System.Windows.Forms.Padding(15, 0, 0, 0);

item.TextImageRelation = System.Windows.Forms.

TextImageRelation.ImageBeforeText;

item.TextSeparatorVisibility = Telerik.WinControls.

ElementVisibility.Visible;

}

if is remove the above code and instead use

radLbDLD.DataSource = arrDLDList;

then the loading time is reduced but inage is not displayed.
as per my understanding the most of the time is taken in adding item to list on by one.
is there any way by which I can avoid this looping.

Also I could not find any property in RadListBox equivalent to ListBox.Items[n].ImageIndex in .net controls
please suggest what can be done to improve the performance.

Thanks & Regards,
Vijay Chowdhary

Calendar, DateTimePicker, TimePicker and Clock

answered on 19 Feb 2009

1 answer

78 views

VSB & Themes in Windows Mobile?

Hi,

I am really looking forward to trying out the Telerik Winforms controls they look amazing..

I was wondering if the skinning or theming that I have seen on the demos can be deployed on Windows Mobile devices? Are there any other ways of skinning Win Forms applications so they don't look like they were made in 1995?

Thanks in advance..

Mark

Themes and Visual Style Builder

answered on 19 Feb 2009