Questions on UI for WinForms Forum

8 answers

483 views

Disable image highlight on mouse over and display text of current item

Hi, how do I show the text of the front item on the carousel and how do I disable the glow that occurs on mouseover on the item?

Carousel

answered on 06 Jan 2010

2 answers

229 views

[Solved] RadDock Form Designer

I am new to RadControls but so far they work fine. I am not finding a reference that explains the prefered method for creating DocumentWindows for the RadDock Control using the Visual Studio form designer. My program could have any number of forms and are based on different "types" that I define. Before using RadDock, I would use the Visual Studio designer to create the basics for each type of form, then at run time dynamically add to and-or modify the base form for each instance required. Because I don't know in advance what types of forms will be displayed, I don't think adding form types to the RadDock control itself at design time is a useful approach. I found that if I use AutoDetectMdiChildren, if a DocumentWindow form is "hidden" when the user closes it and I re-show the form later, it is blank. To correct this I found the following works just fine.
First don't user AuoDetectMdiChildren.
Second in the "formname.Designer.vb" file make the following change....

'Inherits System.Windows.Forms.Form

Inherits Telerik.WinControls.UI.Docking.DocumentWindow

If I later want to modify the form with the Visual Studio form designer, I un-comment the first line and comment the second.

This is working without a hitch, but since I don't find any reference that describes the "proper method", I just wanted to ask if this sounds OK or if there is a better "recommended" pratice that I should be following. To summarize, I want to be able to visual modify DocumentWindow forms for the purpose of creating defined "types" of forms that my program can select from at runtime and the user needs the ability to hide and re-display these forms.

Thanks

Troy

Dock

answered on 06 Jan 2010

4 answers

788 views

Selecting value in multiColumnCombobox

I hava a problem with selecting value in RadColumnComboBox.I can't even change property selectedValue.

    
            this.radMultiColumnComboBoxMachineEventWorkerApproved.DataSource = this.bindingSourceWorkers; 
        
            this.radMultiColumnComboBoxMachineEventWorkerApproved.ValueMember = "idWorker"; 
        
            this.radMultiColumnComboBoxMachineEventWorkerApproved.DisplayMember = "surname"; 
        
                        foreach (var column in this.radMultiColumnComboBoxMachineEventWorkerApproved.MultiColumnComboBoxElement.Columns) 
        
                        { 
        
                            column.IsVisible = false; 
        
                        } 
        
                        this.radMultiColumnComboBoxMachineEventWorkerApproved.MultiColumnComboBoxElement.Columns["idWorker"].IsVisible = true; 
        
                        this.radMultiColumnComboBoxMachineEventWorkerApproved.MultiColumnComboBoxElement.Columns["name"].IsVisible = true; 
        
                        this.radMultiColumnComboBoxMachineEventWorkerApproved.MultiColumnComboBoxElement.Columns["surname"].IsVisible = true; 
        
                        this.radMultiColumnComboBoxMachineEventWorkerApproved.MultiColumnComboBoxElement.Columns["PESEL"].IsVisible = true; 
        
                        this.radMultiColumnComboBoxMachineEventWorkerApproved.MultiColumnComboBoxElement.Columns["name"].HeaderText = "Imię"; 
        
                        this.radMultiColumnComboBoxMachineEventWorkerApproved.MultiColumnComboBoxElement.Columns["surname"].HeaderText = "Nazwisko"; 
        
                        this.radMultiColumnComboBoxMachineEventWorkerApproved.MultiColumnComboBoxElement.Columns["PESEL"].HeaderText = "Pesel"; 
        
            // ------------ now I try to change value 
        
            this.radMultiColumnComboBoxMachineEventWorkerApproved.MultiColumnComboBoxElement.SelectedValue = 5; 
        
            var selectedValue = this.radMultiColumnComboBoxMachineEventWorkerApproved.MultiColumnComboBoxElement.SelectedValue;

After running this code selectedValue is 1 not 5. A can't find a way to choose element in multicolumnbox programicaly so the user could see selected item before changing value to other.

Jarek.

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 06 Jan 2010

1 answer

120 views

Multiple Weekly Selections

Hello,

I have a RadCalendar where I can multiselect individual dates or by row. The problem is when I click a rowheader it deselects any previously selected date(s). I need the ability to select multiple weeks not necessarily next to each other. Can anyone help me on keeping the previous selected dates when clicking on a rowheader?

Any help appreciated!
Thanks in advance.

Calendar, DateTimePicker, TimePicker and Clock

answered on 05 Jan 2010

3 answers

290 views

Formating Column:FormatString

Hi I am using Telerik.WinControls.UI.RadGridView Control

Now I have one field which displays telephone number
my input will be >10 digit no.

I want to display it in this format: (###) ###-####Ext.####

Can you help me in this topic how can I format this....?

GridView

answered on 05 Jan 2010

3 answers

170 views

Selected Index (an Image) make Larger

Hi,

I've been using the RadCarousel for a few months and I love it!

I've just been trying to figure out a way to resize the currently selected index in the carousel.

I understand that the zindex value can help tweak this, but i still would like it to zoom or make the selected index larger (im using movie covers as the elements in the carousel).

I thought about trying to make it zoom when selected, with some C# code, but then i ran into some problems un-resizing it when it is not selected anymore.

Any thoughts on how I can go about doing this?

Thanks!

Carousel

answered on 05 Jan 2010

2 answers

193 views

Adding RadButtonElement to RadListBoxItem

Hi,

I'm adding a RadButtonElement to a RadListBoxItem and would like it to be right aligned, but can't seem to do it.

Here is my code. The button is there, but stays on the left side.

    
            privatevoid lbConnections_ItemDataBound(object sender, Telerik.WinControls.UI.ItemDataBoundEventArgs e)   
        
            {  
        
                RadListBoxItem listBoxItem = (RadListBoxItem)e.DataBoundItem;  
        
                // Add button   
        
                RadButtonElement btn = new RadButtonElement();   
        
                btn.Alignment = ContentAlignment.MiddleRight;   
        
                btn.StretchHorizontally = false;   
        
                btn.StretchVertically = false;   
        
                btn.AutoSize = false;   
        
                btn.Size = new Size(15, 15);;   
        
                btn.Click += new EventHandler(btn_Click);   
        
                listBoxItem.Children.Add(btn);   
        
            }

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 04 Jan 2010

1 answer

259 views

combobox width

I have a combobox in a menu and I'd like to increase its width ; but setting the size in the designer doesn't work.
I've tried to set the minSize, maxSize and Size in my code, the combobox is then larger, but the text of selected items doesn't fit the whole width...

Menu

answered on 04 Jan 2010

3 answers

255 views

RadGridView - LargeChange Error for GridViewComboBoxColumn and Grouping?

I recently upgraded my project to RadControls for WinForms Q3 2009 SP1 and now due to the following errors my application will not even open.

I get the following error whenever I try to set the ValueMember of a GridViewComboBoxColumn. The model I am using has a string for the text Display Member and an integer for the ValueMember. Other GridViewComboBoxColumns where I use a string and a string are not having this issue?

Value of '-2' is not valid for 'LargeChange'. 'LargeChange' must be greater than or equal to 0.

Parameter name: LargeChange

at Telerik.WinControls.UI.RadScrollBarElement.set_LargeChange(Int32 value)

at Telerik.WinControls.UI.GridTableElement.UpdateVScrollBarVisibility(SizeF bodySize)

at Telerik.WinControls.UI.GridTableElement.UpdateChildViewHeight(Int32 delta)

at Telerik.WinControls.UI.GridTableElement.Update_OperationChanged(GridUINotifyAction action, GridViewRowInfo[] rowInfos)

at Telerik.WinControls.UI.GridTableElement.UpdateCore(GridUINotifyAction action, GridViewRowInfo[] rowInfos)

at Telerik.WinControls.UI.GridViewTemplate.UpdateUI(GridUINotifyAction action, GridViewRowInfo[] rowInfos)

at Telerik.WinControls.Data.DataAccessComponent.FilterExpressionChanged2()

at Telerik.WinControls.UI.GridViewDataColumn.set_DataType(Type value)

at Telerik.WinControls.UI.GridViewLookUpColumn.SetFieldDescriptors()

at LeaseTracker.Views.TrackerGrid.InitializeIsSBAN() in F:\Projects\LeaseTracker\LeaseTrackerProj\LeaseTracker\Views\TrackerGrid.cs:line 1004

at LeaseTracker.Views.TrackerGrid.InitializeGridDropDowns() in F:\Projects\LeaseTracker\LeaseTrackerProj\LeaseTracker\Views\TrackerGrid.cs:line 956

at LeaseTracker.MainForm.PopulateGrid(String name) in F:\Projects\LeaseTracker\LeaseTrackerProj\LeaseTracker\MainForm.cs:line 448

at LeaseTracker.MainForm.OnTabSelected(Object sender, TabEventArgs args) in F:\Projects\LeaseTracker\LeaseTrackerProj\LeaseTracker\MainForm.cs:line 436

at Telerik.WinControls.UI.TabEventHandler.Invoke(Object sender, TabEventArgs args)

at Telerik.WinControls.UI.RadTabStripElement.RaiseTabSelected(RadElement tab)

at Telerik.WinControls.UI.RadTabStripElement.SetIsSelected(RadElement childElement, Boolean value)

at Telerik.WinControls.UI.RadTabStripElement.SetSelectedTab(RadElement tabElement)

at Telerik.WinControls.UI.TabItem.set_IsSelected(Boolean value)

at LeaseTracker.MainForm.InitializeComponent() in F:\Projects\LeaseTracker\LeaseTrackerProj\LeaseTracker\MainForm.Designer.cs:line 514

at LeaseTracker.MainForm..ctor() in F:\Projects\LeaseTracker\LeaseTrackerProj\LeaseTracker\MainForm.cs:line 39

Pseudo Code below shows the lines where this is occur and sample model I refer to above :

                             
            private void InitializeTechnology () {         
                IList<DropDownIntItem> ddList = ListTechnology();         
                this.TechnologyColumn.DataSource = ddList;         
                this.TechnologyColumn.DisplayMember = "Name";         
                this.TechnologyColumn.ValueMember = "ID"; // ERRORS HERE         
            }         
                     
            // ~~~ //         
                     
            public class DropDownIntItem {         
                private string _name;         
                private int _id;         
                     
                public DropDownIntItem(int id, string nam) {         
                    this._name = nam;         
                    this._id = id;         
                }         
                     
                public string Name {         
                    get { return _name; }         
                }         
                     
                public int ID {         
                    get { return _id; }         
                }         
            }         

======================================================================

Even if I comment out all the ValueMember items being set for the various combobox columns I still receive the same error on the following line of code later in the process:

                    this.gridView.MasterGridViewTemplate.GroupByExpressions.Clear();         

Value of '-2' is not valid for 'LargeChange'. 'LargeChange' must be greater than or equal to 0.

Parameter name: LargeChange

at Telerik.WinControls.UI.RadScrollBarElement.set_LargeChange(Int32 value)

at Telerik.WinControls.UI.GridTableElement.UpdateVScrollBarVisibility(SizeF bodySize)

at Telerik.WinControls.UI.GridTableElement.UpdateChildViewHeight(Int32 delta)

at Telerik.WinControls.UI.GridTableElement.Update_GroupingChanged(GridUINotifyAction action, GridViewRowInfo[] rowInfos)

at Telerik.WinControls.UI.GridTableElement.UpdateCore(GridUINotifyAction action, GridViewRowInfo[] rowInfos)

at Telerik.WinControls.UI.GridViewTemplate.UpdateUI(GridUINotifyAction action, GridViewRowInfo[] rowInfos)

at Telerik.WinControls.Data.ExpressionHelper.GroupByExpressionsChanged(Object sender, NotifyCollectionChangedEventArgs e)

at Telerik.WinControls.Data.ExpressionFieldCollection`1.NotifyListenersCollectionChanged(NotifyCollectionChangedEventArgs e)

at Telerik.WinControls.Data.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)

at Telerik.WinControls.Data.ObservableCollection`1.OnCollectionReset(IList oldItems)

at Telerik.WinControls.Data.ObservableCollection`1.ClearItems()

at Telerik.WinControls.Data.ItemObservableCollection`1.ClearItems()

at System.Collections.ObjectModel.Collection`1.Clear()

at LeaseTracker.Views.TrackerGrid.LoadGridData() in F:\Projects\LeaseTracker\LeaseTrackerProj\LeaseTracker\Views\TrackerGrid.cs:line 1057

NOTE : I was having similar errors with LargeChange here -> http://www.telerik.com/community/forums/winforms/forms-and-dialogs/minimizing-radform-largechange-error.aspx

I have not had time to reproduce this in a smaller application as yet, but they may be linked so I am referencing it here just in case.

General Discussions

answered on 04 Jan 2010

3 answers

461 views

Value for GridViewCommandColumn

I've bound my RadGrid to a data reader, and added a GridViewCommandColumn. How do I set the value of this button, so that when I catch the _OnClick_ event, I'll know a unique id for that row (and not the row # or column #)?

I've tried setting:
.FieldName = "db_field_with_value"

Thanks!

GridView

answered on 04 Jan 2010