Hi Telerik,

I noticed that, there is no "VirtualGridCheckBoxEditor" class. Not sure why. So I decided to create a check box editor by following Telerik's documented approach. See the code below which is my checkbox editor. However, the checkbox, when the cell is in edit stage, is not rendered at the center of the cell element (see attachment checkboxeditornotcenter.png).

Please assist.

Thank you,

Saj.

------------------------Code--------------------------------------------------------------

    public class CoreVirtualGridCheckBoxEditor : BaseVirtualGridEditor
    {
        protected override Telerik.WinControls.RadElement CreateEditorElement()
        {
            var elmnt = new RadCheckBoxElement();
            return elmnt;
        }
        public override void Initialize(object owner, object value)
        {
            base.Initialize(owner, value);
        }
        public override void BeginEdit()
        {
            base.BeginEdit();
        }
        public override Type DataType
        {
            get
            {
                return typeof(bool);
            }
        }
        public override object Value
        {
            get
            {
                RadCheckBoxElement editor = this.EditorElement as RadCheckBoxElement;
                if (editor.CheckState== System.Windows.Forms.CheckState.Checked)
                {
                    return true;
                }
                return false;
            }
            set
            {
                RadCheckBoxElement editor = this.EditorElement as RadCheckBoxElement;
                if (value == null || value.GetType() != typeof(bool))
                {
                    editor.CheckState = System.Windows.Forms.CheckState.Unchecked;
                    return;
                }
                bool val = (bool)value;
                editor.CheckState = val ? System.Windows.Forms.CheckState.Checked : System.Windows.Forms.CheckState.Unchecked;
            }
        }
    }

How can i get Page Up and Page Down functionality in MultiColumnComboBox popup Grid? Its not working right now Down Cursor is working

Regards

MSA

Hello,

i am using the grid view in virtual mode. The columns are populated with data in the CellValueNeeded Event. This works very well.

Now i was trying to add an additional column to the grid that shall be polpulated by the user with data generated by the build in Expression Editor.

The Expression Editor is shown for the column, but i am not sure what to write into the CellValueNeeded Event for this column with the Expression Editor(or if this is even possible)

Thank You for Your help.

Regards

Ingo Müller

Hello, We are licensed customer of Telerik. I am using telerik winforms library version 2016.3.1024.20. I am faced with a problem, as described below.

In the Virtualgrid's EditorRequired event, for a particular cell, I changed the default editor to a new editor like below.

        private void Grid_EditorRequired(object sender, VirtualGridEditorRequiredEventArgs e)
        {
            switch (e.ColumnIndex)
            {
                case 0:
                    {

                        VirtualGridTextBoxControlEditor editor = new VirtualGridTextBoxControlEditor();
                        editor.CharacterCasing = CharacterCasing.Upper;
                        e.Editor = editor;
                    }
                    break;
          }

     }

What happens now is, when I click on the cell, the cell becomes editable, and I can type in it, but I cannot backspace on the cell to delete the characters entered. In addition to that I don't even get the CellValidating event. Besides, the KeyUp event on editor's element (RadTextBoxControlElement) is also not fired.

Could you please help me out? This is urgent because I am running into a pre-Christmas release.

Thank you,

Saji Antony

I really like the waiting bar indicator on Virtual Grid as seen here http://docs.telerik.com/devtools/winforms/virtualgrid/busy-indicators

But, I can't seem to find this funtionality on a regular RadGridView. Is that possible?

Hello.

I need to extend RadTextBoxControl element by inheritance. Basically I need to add IsRequired property (this is simple).

Next I need to be able to see the control in Visual Style Builder and define how it will look when this IsRequired property is set to true.

I could not get this information from documentation.

Thank you!

Hello,

i use a DateTimePicker for my application to select a day. The selection is inside a very narrow time Intervall (1 - 3 Days). So i set the MinDate and MaxDate of the DateTimePicker accourdingly. When the Intervall is lager than 1 day the DateTimePicker works correctly. When the MinDate and the MaxDate is equal (only one day available, date cannot be changed) the display of the DateTimePicker is not correct:

Only the days before the actual date are grayed out.

It is possible to switch to different month / years (after teh actual date) with the build in functions.

Nevertheless is it not possible to select another day (which is good), but the user might get confused that his selection does not change the date.

Please confirm this behaviour and please provide a workaround for this behaviour.

Thank You.

Kind Regads

Ingo Müller

Hi,

I'm writing a form where user can rearrange items on ListView and add new from ListControl.

I've used Drag and drop feature, because it's very easy and convenient for client. For ListView I've used ListViewDragDropService (http://docs.telerik.com/devtools/winforms/listview/drag-and-drop/drag-and-drop-in-bound-mode) and to add new items from ListControl OLE (http://docs.telerik.com/devtools/winforms/listview/drag-and-drop/combining-raddragdropservice-and-ole-drag-and-drop).

Problem is when user rearrange items you have this nice indicator (insertion lines) where item will be put. But when I drag item from ListControl there is no information where item will be putted. Even I use ShouldDropAfter to figure-out if I should put item before or after.

This is not consistent so how can I "activate" this line?

I will be grateful to show me solution, direction how to achieve this. 

I use 2016.3.913.40 version.