Questions on UI for WinForms Forum

4 answers

768 views

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

110 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

279 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

160 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

186 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

251 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

240 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

447 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

2 answers

144 views

[Solved] RadRibbonBar Performance Issue

I have created a new windows application c# project, and all I have done is to drag a RadRibbonBar control onto the default form. The only other thing I have done is to add the following debug statements into the form method:

Debug.WriteLine(DateTime.Now);

InitializeComponent();

Debug.WriteLine(DateTime.Now);

When I run the project it takes 8 seconds to show the form - a form with a standard MS toolbar is instantaneous.

System is as follows:

Windows 7 Ultimate x 64

Visual Studio 8 SP1

AMD Phenom II 965

Anyone offer any advice?

Thanks.

RibbonBar

answered on 04 Jan 2010

13 answers

511 views

[Solved] Gridview combobox question

Hello,

I'm trying to do the following.

I've got a gridview that is triggered depending on which button you click (active and inactive button). So when active is clicked the gridview is loaded with all the active items and vice versa.

Now in my gridview I've got one combobox column filled with 3 states (values: import, active, inactive). What I want to do is if the active items are loaded then in the combobox you can't select the active value and visa versa for inactive. the import values is always enabled.

Next what I thought of doing is to have a combobox in my header of the grid. So if I select for example "import" in the header all items in the gridview will be set to be imported. A little like the checkbox in the header I guess.

I looked for both things on the telerik forum and knowledge base but can't seem to find anything useful.

Thanks in advanced.
Gerbrand

GridView

answered on 04 Jan 2010