Questions on UI for WinForms Forum

1 answer

114 views

Selection rectangle issues

Related screenshots:

Scr1: http://prnt.sc/c4t86p

Scr2: http://prnt.sc/c4tazq

Description:

1) if AddNewRow.True and AddNewRowPosition.Top the top line of cell selection rectangle is eated by half;

2) if SelectionMode.CellSelect the bottom line of cell selection rectangle is eated by half.

GridView

answered on 15 Aug 2016

2 answers

169 views

Export to CSV with programmatically generated grid

I'm trying to use the ExportToCSV function and I can see it works ok with one of my grids, one that was created with the Designer. but when trying to generate a GridView on the fly it'll export a blank CSV, even when the grid's DataSource is filled with records.

01.private void radButton1_Click(object sender, EventArgs e)

02.{

03. RadGridView tempGrid = new RadGridView();

04.

05. GridViewTextBoxColumn firstName = new GridViewTextBoxColumn();

06. firstName.FieldName = "fname";

07. tempGrid.Columns.Add(firstName);

08.

09. GridViewTextBoxColumn lastName = new GridViewTextBoxColumn();

10. lastName.FieldName = "lname";

11. tempGrid.Columns.Add(lastName);

12.

13. GridViewTextBoxColumn emailAddress = new GridViewTextBoxColumn();

14. emailAddress.FieldName = "email";

15. tempGrid.Columns.Add(emailAddress);

16.

17. ContactsEntities csvList = new ContactsEntities();

18. tempGrid.DataSource = (from c in csvList.CSVList select c).ToList();

19.

20. ExportToCSV exporter = new ExportToCSV(tempGrid);

21. string fileName = "D:\\ExportedData2.csv";

22. exporter.RunExport(fileName);

23.}

GridView

answered on 15 Aug 2016

4 answers

588 views

DataBinding issue with ComboBox

And probably with RadListBox also.

The problem is as follows: I have a RadComboBox, with DataSource, DisplayMember and ValueMember defined. It get's populated just fine:

    
            cmbNewTipoUtente.ValueMember = "ID_TipoUtente";  
        
            cmbNewTipoUtente.DisplayMember = "Designacao";  
        
            cmbNewTipoUtente.DataSource = dt; //<- DataTable

The same RadComboBox has a DataBinding on SelectedValue to a property on a POCO object. Something like this:

    
            cmbNewTipoUtente.DataBindings.Add("SelectedValue", mNewTipoUtente, "ID_TipoUtente", true, DataSourceUpdateMode.OnPropertyChanged, null);

Also have the SelectedIndexChanged event subscribed where I check for some conditions. In the event, I'm checking the value on the ID_TipoUtente property so I can pass it to a method on my business layer. This is where the problem lays (and I think it is a bug), whenever I selecte an item on the RadComboBox, the value of my property do not get updated.

I tryed to open a Bug Report, but it seems there's also a bug on My Account section of the site, since there is only one product available to me, where should be almost all of them. lol

This is a big issue since many of my features are broken because of this and can cause me some pain with my clients.

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 15 Aug 2016

1 answer

204 views

Always show selected row

VisualStudio10/c++cli/Telerik_UI_For_WinForms_2016_1_216_Dev.msi

Created a gridview with visible filters row.

When clicking on some filter the selection goes out from row. How could I make the selection stay on 'current row' ?

GridView

answered on 15 Aug 2016

9 answers

1.2K+ views

Update Cell Value

The following code doesn't work:

1.string newDate = "...";

2.grid.CurrentRow.Cells["StartDate"].Value = newDate;

GridView

answered on 15 Aug 2016

6 answers

573 views

Custom Nodes in Tree View

Hi Team,

In the Telerik article for Custom Nodes in Treeview, the root node and the child nodes contain the same controls i.e image,label,line,button.

Please provide code for displaying different controls in the root node and child nodes. Eg: image,label,line,button in Root Node, TextBox in child node in level1 and checkbox in child node in level 2

Thanks,

Swarupa

Treeview

answered on 15 Aug 2016

17 answers

876 views

Bind DataRow to PropertyGrid

Hi.

I'd like to bind the DataTable (contains a single DataRow) to radPropertyGrid: each row in radPropertyGrid should represent sequental value from DataRow. As I've understood it is quite possible. But I also want to add IsReadOnly and Category attributes to each property created this way. I have arrays of appropriate length where there each value should be applied to same index's attributes of (DataRow value as Property) in radPropertyGrid.

Moreover I have plans to get changes from this radPropertyGrid to create an update statement for my database.

I'm afraid I'm not quite skilled to complete these tasks without some help as I have some problems with understanding TypeDescriptors, TypeProviders etc.

Could you please give me any tips?

PropertyGrid