Questions on UI for WinForms Forum

9 answers

568 views

I can change split panel collapse direction to left or right like this. But can I have both splitter buttons (left and right direction) on RadSplitContainer with only 2 SplitPanels?

I noticed that if the RadSplitContainer had more than 3 panels, the splitter button showed 2 buttons (left and right direction)

SplitContainer

answered on 31 Jan 2018

4 answers

115 views

GridViewPdfExport RadDropDownListEditor exports ValueMember

Hi

I'm using GridViewPdfExport to export a radGrid to pdf. I have a column that is set up to use a mixture of radTextBoxEditors, RadDropDownListEditors and RadDateTimeEditors depending on the data in the cell. The RadDropDownList editors each have different data sources but each uses an integer ID field as the valueMember and a text field as the displayMember. When I export to pdf, the cells that use a RadDropDownListEditor export the valueMember and not the displayMember. How do I get them to export the DisplayMember?

I can see that I'd need to use the exportToPdfCellFormatting event but I don't know how to:
- work out whether the cell uses a RadDropDownListEditor (I can use logic based on the values of other cells in the row but if I do that, I can see it leading to a bug at some point in the future when new logic is added to the form. It would be much safer if I can write the equivalent of "If the cell uses a RadDropDownListEditor")
- get the DisplayMember value

GridView

answered on 31 Jan 2018

1 answer

536 views

how to get list items in telerik radlistview as 5 Column with checkbox?

I Have managed to display databound items in listview with checkbox, but it is been displayed as single column I would like that to displayed in 4 column. Basically I want to display listview items as multiple columns so if anyone can help me out please do help Thanks in Advance.

CheckedListBox

answered on 31 Jan 2018

1 answer

355 views

TreeView in the DropDownList

I have a need for the contents of a dropdown list to be a treeview. When an item in the treeview is selected I need to know that the user selected that specific item.

DropDownList

answered on 31 Jan 2018

1 answer

434 views

Dropdown column

I need to add a column to the GridView that would be a dropdown. The contents of the drop down may potentially be a grid of its own. Is this achievable?

GridView

answered on 31 Jan 2018

2 answers

213 views

DropDownList and AutoCompleteSource

Hello guys! I have a small deal with DropDownList...

I need to create a path selector, and this is how I see it:
- when I'm writing "C:\" DropDown starts showing AutoComplete options
- Paths that were in usage (it will be decided after some program runs) it will save it to its DataSource.

Standard Combox can do all of theese requirements, It will be like:
AutoCompleteSource = AutoCompleteSource.FileSystemDirectories
and after save the "good" paths to DataSource.

I find somthing same in the Telerik lib - a DropDownList but it hasn't property AutoCompleteSource where I can set AutoCompleteSource.FileSystemDirectories...

I continued to search for solutions and found RadMaskedEditBox that has AutoCompleteSource like I want, but has no DropDownMenu for saving used pathes.
If there other solutions that I didn't see? I don't want to write algorithm for DropDownList which will AutoComplete directories, I think there is a more beautiful solution.

Thanks!

DropDownList

answered on 30 Jan 2018

3 answers

516 views

Set null/blank for SpinEditor

When binding data to SpinEditor, I want to display value number (double?, decimal?) for SpinEditor, so I want seperate between 0 and blank/null. How can I set it be default?

SpinEditor

answered on 30 Jan 2018

1 answer

210 views

Cannot change Taskbar Icon on RadForm

I tried searching for this but apparently I'm the only one with this issue right now.

So here's the very basics: My app has a radform with a button. You click this button and it creates another RadForm, but this one is a FormBorderStyle FixedToolWindow. When I hit Alt-Tab and see it, it's not the icon I assigned to the Form. (via the Designer with the Form Icon property) It's the default app Icon.

Attaching what it looks like. (it's the selected one) This icon is the same in the Taskbar as well. The Application Icon shows up just fine though (That's the AC one in the attached pic)

How do I change the form Icon?

VS 2015

Windows 8.1 64bit

Telerik 17.1.221.0

Form

answered on 30 Jan 2018

5 answers

105 views

ColumnChooser multi selection

Hello,

is it possible to select more than one column at once?

Kind regards

Marc

GridView

answered on 29 Jan 2018

3 answers

368 views

RowSourceNeeded Problem

I have a RowSourceNeeded event, and inside that event I create my child GridView and add rows to it. There are conditions that would keep me from adding the child GridView; however, I still need to add this child when I do have the data required to do so.

In this event I check a property "model.Parameters" which could be null; however, it is not always going to be null (after handling the RowSourceNeeded event) and when not null I need to add the child GridView.

Here's where I add it.

// get the analysis parameter differences for this row (scan)

private async void BatchComparisonGrid_RowSourceNeeded(object sender, GridViewRowSourceNeededEventArgs e)

{

// tell user we're getting the analysis parameters

UpdateWaitingBar(ElementVisibility.Visible, "Getting analysis parameters");

// get item bound to the row

ComparisonScanViewModel model = e.ParentRow.DataBoundItem as ComparisonScanViewModel;

await Task.Factory.StartNew(() =>

{

if (null != model && null != model.Parameters)

{

// I don't do anything here, I just needed to cause 'model.Parameters' to

// be called since it is a timely call.

}

});

// update the UI

if (null != model &&

null != model.Parameters)

{

foreach (ComparisonAnalysisParameterViewModel am in model.Parameters)

{

// build values to go in the row details grid

GridViewRowInfo row = e.Template.Rows.NewRow();

row.Cells["Description"].Value = am.Title;

row.Cells["Value"].Value = am.Value;

e.SourceCollection.Add(row);

}

e.ParentRow.IsExpanded = true;

}

// tell the user we're done

UpdateWaitingBar(ElementVisibility.Collapsed);

}

Later, I'm listening to the CurrentRowChanging event. Here I can get the same data from the model and potentially build the child GridView; however, I don't have the necessary information required that was provided to me in the RowSourceNeeded event. I.e. e.Template and e.SourceCollection.

// row is changing in the grid and time to expand that item to show the details for the row

private void BatchComparisonGrid_CurrentRowChanging(object sender, CurrentRowChangingEventArgs e)

{

if (e.NewRow is GridViewHierarchyRowInfo)

{

foreach (var item in BatchComparisonGrid.Rows)

{

item.IsExpanded = false;

}

// get model

ComparisonScanViewModel model = e.NewRow.DataBoundItem as ComparisonScanViewModel;

if(null != model.Parameters)

{

// code would go here that checks to see if this row already had the child GridView

// added, and if not AND model.Parameters is not null, then we'll add the child GridView now.

// BUT, how to do this from here ????

}

// expand

e.NewRow.IsExpanded = true;

}

Is there some way to access what I need from the CurrentRowChanging event in order to add the child GridView...since the RowSourceNeeded event is never raised again after the first time it is raised?

GridView

answered on 29 Jan 2018