Questions on UI for WinForms Forum

1 answer

106 views

[Solved] How can I populate a series of textboxes when I click on a row in the GridView?

I have a WindowsForm App that shows a list of users using RadGridView .
When you double click on a row on the GridView I pop up a second form containing textboxes.
I am trying to populate these boxes with the data from the selected row of the GridView.
I tried to use FindControl but that doesn't seem to work.

Does anyone have a piece of code in VB that will make this work?

Thanks

GridView

answered on 02 Feb 2009

1 answer

172 views

RadComboBox always defaults to first row

Hi,
I have a RadComboBox which always stays focused on the first row. The list is a list of contacts and I bring back contacts for a specific customer. However there is a problem with SelectedItem, as the value is saved but when I reopen the form the combobox still defaults to the first row. Any ideas?

Thanks.

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 02 Feb 2009

1 answer

174 views

Mouse wheel support

Hello, Is there a way to get the grid to scroll using the mouse wheel? I noticed that the radList does support this.

Thank you, Tyler

GridView

answered on 02 Feb 2009

1 answer

262 views

BoxLayout and positioning

Hi,

I have a control which inherits from RadTextBox

The layout should be the following, (a textbox with a button on its side and a couple of labels)

___________________________________________________

| TextElement TextElement |

|__________________________________________________|

|_TextBox ________________________________|_Button_|

Problem is I cannot get the textbox and button to lay out in the correct order. The button is always rendered to the left and the textbox to the right, any way to change this?

Thanks,

/ jorge

                             
                    protected override void CreateChildItems(RadElement parent)         
                    {         
                        base.InitializeTextElement();         
                     
                        title.Text = "Title";         
                        title.Class = "Title";         
                     
                        validation.Text = "* Validation failed";         
                        validation.Visibility = ElementVisibility.Collapsed;         
                        validation.Class = "Validation";         
                     
                        validation.ForeColor = Color.Red;         
                     
                        AcceptsTab = false;         
                        TabStop = true;         
                        textBoxElement.Size = new Size(402, 20);         
                     
                        button.Image = global::revival.Properties.Resources.file_16;         
                        button.ImageAlignment = System.Drawing.ContentAlignment.MiddleCenter;         
                        button.TabIndex = 0;         
                        button.Dock = DockStyle.Right;         
                        button.ButtonElement.StretchHorizontally = false;         
                        button.ButtonElement.StretchVertically = false;         
                        button.ButtonElement.Margin = new Padding(4, 0, 0, 0);         
                        button.ButtonElement.Padding = new Padding(1);         
                     
                        BoxLayout layoutTexts = new BoxLayout();         
                        layoutTexts.Orientation = Orientation.Horizontal;         
                        layoutTexts.StretchVertically = false;         
                     
                        layoutTexts.Children.Add(title);         
                        layoutTexts.Children.Add(validation);         
                     
                        BoxLayout layoutEditor = new BoxLayout();         
                        layoutEditor.Orientation = Orientation.Horizontal;         
                        layoutEditor.StretchVertically = false;         
                     
            // how do i get the textbox to render to the left and the button to the right?         
                        layoutEditor.Children.Add(textBoxElement);         
                        layoutEditor.Children.Add(button.ButtonElement);         
                     
                        BoxLayout layout = new BoxLayout();         
                        layout.Orientation = Orientation.Vertical;         
                     
                        layout.Children.Add(layoutTexts);         
                        layout.Children.Add(layoutEditor);         
                     
                        RootElement.Children.Add(layout);         
                     
                        Size = new Size(425, 34);         
                    }         
                     
                     

TextBox

answered on 02 Feb 2009

1 answer

308 views

To Disable Column Drag and Drop

Hi,
We are using WinForms Q1 2008 SP1 RadGridView.
The problem we are facing is that even though we have disabled drag drop of the columns in the grid, if the user tries to drag any column header outside the form or within the grid other column and wait for few seconds (>= 5 Sec) , following runtime error is coming
object reference not set to instance of an object.

What we are trying to do is disable column drag and drop of grid columns, I have already tried MasterGridViewTemplate.AllowDragToGroup = False , column chooser , column reorder everything false.

Note : we are having timer tick event set for 5 seconds which refreshes the grid every after 5 sec.
if we remove timer event , above problem gets resolved.

Even we dont want effect of drag and drop.

We need solution for this with timer enabled ASAP.

Please help.

Regards
Vishal

GridView

answered on 02 Feb 2009

1 answer

178 views

Inheriting RadTextbox with Multiline problems

Hi,

I am upgrading from an old solution, see http://www.telerik.com/community/forums/winforms/ui-controls/labelmultilinetextbox-with-validation.aspx, since this version is missing some functionality which I now need.

My class inherits from RadTextBox where I override CreateChildItems and create my own.

I follow the logic from your source and it all works perfectly. Except the multiline property, how can I implement it?

I use the following controls.

private readonly RadTextBoxItem textBox = new RadTextBoxItem();

private readonly TextPrimitive title = new TextPrimitive();

private readonly TextPrimitive validation = new TextPrimitive();

A cut down version of CreateChildItems

BoxLayout layoutTexts = new BoxLayout();

layoutTexts.Orientation = Orientation.Horizontal;

layoutTexts.StretchVertically = false; // when true the control is drawn differently

layoutTexts.Children.Add(title);

layoutTexts.Children.Add(validation);

BoxLayout layout = new BoxLayout();

layout.Orientation = Orientation.Vertical;

layout.Children.Add(layoutTexts);

base.InitializeTextElement();

layout.Children.Add(textBoxElement);

RootElement.Children.Add(layout);

Size = new Size(425, 34); // default size

Thanks

- jorge

TextBox

answered on 02 Feb 2009

1 answer

192 views

Restricted date selection in RadTimePicker

Hello,
I'm working with the RadCalendar control in both the Winform environment. We need to restrict the dates that can be selected in the RadTimePicker control to a specific list of dates. We also need to highlight the dates that can be selected. A different background color on these dates would help the users pick a allowed date. We also need to restrict the user from selecting dates that are not on the allowed list of dates.

Is there a way to do this?

Thank you in advance for the feedback and guidance!

Your help is much appreciated,
Jeff-

Calendar, DateTimePicker, TimePicker and Clock

answered on 02 Feb 2009

1 answer

103 views

Synchronisation problem on existing objects of a changed class

Sorry, this thread should be created inside the OpenAccess-Forum. I thought I created it there but there must had been any error.
Please delete this thread.

GridView

answered on 31 Jan 2009

2 answers

129 views

Resize column no longer possible (2008Q2 -> 2008.3.1204/2008.3.1321)

Hello Telerik team,

I used to have set of columns that have a MinWidth and MaxWidth set by designs. Resizing is allowed.

The MinSize is being used to set a default minimal width when shown initially

Once the control has been painted it should set the minimum width of the rows to Zero, so that the user can adjust the width to their own desire.

This is shown in the following code...

private bool _isFirstPaint = true;

private void MyGridViewContainer_Paint(object sender, PaintEventArgs e)

{

if (_isFirstPaint == true)

{

//after 1st draw, we reset the minimum column width so that the collumns can be resized by the user below the initial minimum width set by design.

foreach (GridViewColumn column in this.radGridView1.Columns)

{

column.MinWidth = 0 ;

}

this.Paint -= new PaintEventHandler(MyGridViewContainer_Paint

_isFirstPaint = false;

}

else

{

_isFirstPaint =

false;

}

}

The problem is that this used to work with the 2008Q2 version, but not with the above versions.
Since we now switched to 2008.3.1204 and just a little later to 2008.3.1321, this problem has arrisen.

Please let us know what to do to overcome this change in behaviour.

Kind regards,

Jack

GridView

answered on 30 Jan 2009

5 answers

1.0K+ views

Count checked node in treeview

Hi, how can I do to count every checked nodes in a radtrreview in C# ? Thanks.

Treeview

answered on 30 Jan 2009