Questions on UI for WinForms Forum

9 answers

366 views

Hi, I have one problem with Telerik Grid View (version 2014.2.617.40).
I set list with several items as DataSource for GridView and user can add new items by clicking on "Click here to add a new row". But if all items were removed from list this row disappear. Only text "No data to display" is showed.

My collection defined as

ItemsCollection<T> : IBindingList, IList<T> where T : Item

{}

After initialization of list user have empty list and cannot add first row. How I can change this behavior?

Thanks.

GridView

answered on 08 Oct 2014

3 answers

392 views

[Solved] Stop grid auto-scroll asynchronous threading

Hey Admin,

I have once scenario I am binding records via asynchronous threading

delegate void RuleResultParameterDelegate(string value); // this delegate is used to allow the code to call back to itself, as needed in the UI thread

private void RuleExecuted(string ruleResult)

{

// if this is not the main UI thread, then call this function via a delegate

if (InvokeRequired)

{

BeginInvoke(new RuleResultParameterDelegate(RuleExecuted), new object[] { ruleResult });

return;

}

GridViewRowInfo row = new GridViewRowInfo(radGridView_EnvResults.MasterView);

row.Cells["colTargetHost"].Value = “abc”;

row.Cells["colRuleName"].Value = “efg”;

var selectedRow = radGridView_EnvResults.CurrentRow;

radGridView_EnvResults.Rows.Add(row);

if (selectedRow != null)

{

radGridView_EnvResults.GridBehavior = new MyBehavior();

}

} public class MyBehavior : BaseGridBehavior

{

public override bool ProcessKey(KeyEventArgs keys)

{

if (this.GridControl.CurrentRow is GridViewNewRowInfo)

{

if (keys.KeyData == Keys.Enter || keys.KeyData == Keys.Down || keys.KeyData == Keys.Up)

{

this.GridControl.EndEdit();

this.GridControl.GridNavigator.SelectPreviousRow(1);

this.GridControl.GridNavigator.SelectFirstColumn();

this.GridControl.BeginEdit();

}

else if (this.GridControl.GridNavigator.IsLastColumn(this.GridControl.CurrentColumn) && keys.KeyData == Keys.Tab)

{

this.GridControl.EndEdit();

this.GridControl.GridNavigator.SelectPreviousRow(1);

this.GridControl.GridNavigator.SelectFirstColumn();

this.GridControl.BeginEdit();

}

else if (keys.KeyData == Keys.Tab)

{

this.GridControl.GridNavigator.SelectNextColumn();

}

return true;

}

else

{

return base.ProcessKey(keys);

}

Is there a way to not have the grid auto-scroll as data is going into it?

Thanks,
Shakti

GridView

answered on 08 Oct 2014

2 answers

171 views

Images not showing in DetailView mode

Hi,

I've just upgraded a project to the 2014.2 715 release and have noticed that item images are now not being displaying in RadListView when the list is in DetailView mode. I've confirmed that the difference exists in the FileExplorer demo app between versions 2013.3 1016 and 2014.2 715 (run both demos and switch both into Detail view mode - the right-hand listview showing files shows file type icons in the 2013 version but not in the 2014 version - see attached screenshot). Is there any way of restoring the image behaviour in the latest release without having to workaround with a separate image column?

Best regards,

Frazz

ListView

answered on 07 Oct 2014

1 answer

316 views

Problem with Padding Property

Greetings.

I changed the Padding property to All 0 in design mode, the code:

this.radDock1.Padding = new System.Windows.Forms.Padding(0);

was in the designer file, but at runtime the dock still has Padding 4.

I put the code after the InitializeComponent function and did not work.

finally i put the code in the Load event of the form and take effect in runtime.

I am using the last release of rad Controls with framework 3.5.

Regards.

Dock

answered on 07 Oct 2014

3 answers

132 views

ChangeListStyle changes spacing

I have a RTB setup to contain free form text users enter. I'm using the RichTextProvider. They have some of the basic font controls from the sample available such as Bold, Italic, Underline, colors, etc. They are also able to do Bullet and Number lists.

When changing the list style to the appropriate type, it changes the spacing as well. In the attached image, you can see where I:
1) Type "This is a test."
2) Hit enter
3) Type "This is a new line."
4) Hit enter
5) Click the 'Bullet list' button which initiates a ChangeListStyle with DefaultListStyles.Bulleted
6) Type "Bullet clicked"
7) Hit enter
8) Type "New line in bullet list"
9) Hit enter
10) Click the 'bullet list' button which initiates a ChangeListStyle with DefaultListStyles.None
11) Type "Out of bullet"

As you can see, the bullet spacing is not the same as the lines before or after.

How can I keep the spacing the same?

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 07 Oct 2014

1 answer

99 views

original design a radDock

It can restore to the original design a radDock when some of the toolwindows are hidden. and all of them appear.

Dock

answered on 07 Oct 2014

1 answer

84 views

Add to radgridview grouping

Let's say I was had a radgridview that was grouped by foodtype, whose sections included fruit.
Currently, when I try to add a type of fruit from the top, I cannot add specifically to the fruit section because the foodtype section is not there, and a new section entitled "foodtype:" is created.
How would I be able to add to the fruit section from the grouped interface?

GridView

answered on 06 Oct 2014

3 answers

336 views

Show current point after mouce hover

I have RadChartView that receive real time data and i want to add the option after the mouse is over specific point to see it's value so i added this property:

radChartView1.ShowTrackBall = true;

And now i can see an empty rectangle with no text (see my attach file).
Another thing that i have notice is now after right click on my chart i have an new option called Palette that change my series color and in this case i can see the point value inside the rectangle.

Now i have 3 questions:

1. What is this new option ?
2. how can i see my point value without change this color ?
3. is it possible to add some text inside this rectangle ?

Thanks !

ChartView

answered on 06 Oct 2014

1 answer

128 views

[Solved] Valid entry issue

Hi:

We are working with some existing code. The RadDropDownList controls throughout the application allows any data entry in the control (for example: a list of USA states, I could enter Fred and tab out of the field). Currently, all RadDropDownList controls DropDownStyle are set to DropDown. What are the best practices constraining the users data entry to the supplied list.

Phil

DropDownList

answered on 06 Oct 2014

2 answers

89 views

Iterate through timepickers

I have a whole bunch of timepcikers on a form. I need to have a button on the form to set all times to 12:00 AM. It is a rest for the user. I wanted to do something like this:

foreach(Control c in this.Controls)
{
if(c is radTimePicker)
{
// set time here ;]
}
}

I'm not sure what I should use for "Control" and "this.Controls" I'm guessing radTimePicker is correct.

Calendar, DateTimePicker, TimePicker and Clock

answered on 04 Oct 2014