Questions on UI for WinForms Forum

4 answers

336 views

Hi all,

I might be a little newbie to Telerik Winform controls, so please pardon me in advance.

I want to keep track of the edited rows, which means I want to insert new rows or update existing ones on a user button click. My data grid is not bound to a data set or something. the table in database in completely dynamic and will be created based on some meta data.
I did not find any flag in GridViewRowInfo class which can be used. (there is a IsModified flag which is always false)

So I created a List of edited rows and worked with that.
first I tried to save row indices. but I found out that the newly inserted row will have RowIndex = -1, but in save time will not be reachable.
so I decided to save the row reference in that List.
it did not work out, too. because the newly added row will change after it is really inserted into the grid. (a copy of the row will be added to grid not the row itself.) and I will insert a copy of an invalid row with no useful data.

I'd be thankful if someone helps me in this issue.

thanks.
Maziar

GridView

answered on 17 May 2011

1 answer

145 views

GridView Filter Has No Checkboxes After Lazy Loading

I am using a GridView which has filtering enabled. The GridView control itself is bounded to data via the following command:

radGridView1.DataSource = db.AppUsage(1, new DateTime(2011, 2, 10), new DateTime(2011, 5, 11));

This correctly populates the GridView with rows. If I click on the funnel icon in the column headers, I get presented with a checkbox treeview structure, listing all the distinct values. From here, I am able to check/uncheck values to set the filter accordingly. This is good.

However, if I drill down on these rows such that a child template is loaded via "load on demand" / "lazy loading", when clicking on the funnel icon in the child GridView, the checkbox treeview structure only contains the "All" item, and no other values. I would like to see a list of checkboxes with all the distinct values, in the same way as the parent template.

Please see screenshots.

Note that the child template is populated via the RowSourceNeeded eventhandler, and creates rows by iterating over a result set (i.e. the DataSource property is not set for the child template):

void radGridView1_RowSourceNeeded(object sender, GridViewRowSourceNeededEventArgs e)

{

GridViewRowInfo rowInfo = e.ParentRow;

String packageId = rowInfo.Cells["PackageId"].Value.ToString();

String parentPackageId = rowInfo.Cells["ParentPackageId"].Value.ToString();

WorkspaceMiQEntities db = new WorkspaceMiQEntities();

foreach (var u in db.Usage(1, new DateTime(2011, 2, 10), new DateTime(2011, 5, 11), null, Int32.Parse(packageId), null, Int32.Parse(parentPackageId)))

{

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

row.Cells["StartDateTime"].Value = u.StartDateTime;

row.Cells["EndDateTime"].Value = u.EndDateTime;

row.Cells["UserName"].Value = u.UserName;

row.Cells["DomainName"].Value = u.DomainName;

row.Cells["DeviceName"].Value = u.DeviceName;

e.SourceCollection.Add(row);

}

db.Dispose();

}

I'd appreciate your help on this.

Thanks in advance.

GridView

answered on 17 May 2011

2 answers

167 views

RadTrackBar Theming Problem

I was trying to theme the RadTrackBar control using Visual Style Builder (VSB). The Theme previews well in the VSB preview window but when i load the theme in my app the TrackBar appears themeless???
I tried to change the properties of the elements (like BackColor, SliderAreaGradientColor...etc) directly in VSB ...but still the trackbar shows up with no theme although other controls (RadScrollbar, Radbutton...etc) take on the theme normally.
I also tried the Desert.tssp theme...same problem...the trackbar theme is not complete. The SldierAreaGradientColors and TickColor appears like the windows defaults, which is light blue.
Any help is very appreciated, because otherwise i'll have to complete the missing theme properties within the properties windows of the control in visual studio....

TrackBar

answered on 17 May 2011

5 answers

606 views

Issues with setting background color in CellFormating of radGridView

I have a radgridview that I want to change the background color of three columns depending on the value of the cells. The following code works great for changing the colors of the cells based on its value, however if i click into the cell all the formatting for that cell is lost. Is there something we are missing here?

Private Sub rgvTimeCards_CellFormatting(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.CellFormattingEventArgs) Handles rgvTimeCards.CellFormatting

Dim amtIndex As Integer = rgvTimeCards.Columns("BillableAmount").Index

Dim hrsIndex As Integer = rgvTimeCards.Columns("MarkUpHrs").Index

Dim dollarsIndex As Integer = rgvTimeCards.Columns("MarkUpDollars").Index

If e.CellElement.ColumnIndex.Equals(hrsIndex) Or e.CellElement.ColumnIndex.Equals(dollarsIndex) Then

If rgvTimeCards.Rows(e.CellElement.RowIndex).Cells(e.CellElement.ColumnIndex).Value < 0 Then

e.CellElement.NumberOfColors = 2

e.CellElement.BackColor = Color.White

e.CellElement.BackColor2 = Color.Pink

e.CellElement.ForeColor = Color.Black

e.CellElement.DrawFill = True

ElseIf rgvTimeCards.Rows(e.CellElement.RowIndex).Cells(e.CellElement.ColumnIndex).Value > 0 Then

e.CellElement.NumberOfColors = 2

e.CellElement.BackColor = Color.White

e.CellElement.BackColor2 = Color.FromArgb(219, 230, 145)

e.CellElement.ForeColor = Color.Black

e.CellElement.DrawFill = True

Else

e.CellElement.DrawFill = False

End If

ElseIf e.CellElement.ColumnIndex.Equals(amtIndex) Then

If rgvTimeCards.Rows(e.CellElement.RowIndex).Cells(e.CellElement.ColumnIndex).Value < 0 Then

e.CellElement.NumberOfColors = 2

e.CellElement.BackColor = Color.White

e.CellElement.BackColor2 = Color.Pink

e.CellElement.ForeColor = Color.Black

e.CellElement.DrawFill = True

Else

e.CellElement.DrawFill = False

End If

End Sub

GridView

answered on 17 May 2011

1 answer

148 views

Wrap subject text if it will not fit into the item on the scheduler

Hello there.

I have successfully used the RadScheduler component to display tasks on a daily, weekly and monthly basis.

If the subject text displayed for the task does not fit onto the item shown in the scheduler, is there a way to make it autosize so all text is visible

Scheduler and Reminder

answered on 16 May 2011

1 answer

520 views

Convert current selected item to datarow

There is a nice useful snippet when using standard MS combobox to track current selected item in a table based on the current selected item of the combobox. This snippet can be accessed using VS 2008 and upward i dont know about 2005. (InsertSnippet> Data - LinQ/XML/Desinger/ADO.NET blah blah> Designer Features and ADO.net> ConvertBindingsource.Current to a specific row in a DataTable)

Using the standard VS shipped combobox it works giving me the option to define it like this:

Dim row As MyProjectDataSet.tblStaffRow<br> row = CType(CType(Me.ComboBoxStaff.SelectedItem, DataRowView).Row, MyProjectDataSet.tblStaffRow)

and then Dim for example put it into a variable like:

myArrayVariable.Add(row.StaffName)

This however doesn't work for telerik q1 2011 winform RadDropDownList. can anyone help me with this?

DropDownList

answered on 16 May 2011

3 answers

226 views

RadComboBoxElement

Hi,

We would like to use telerik winform controls. So we start to test demo version.
We have a strange issue about the RadComboBoxElement placed on radribbonbar.

When I use the autocompletemod with SuggestAppend option at the first bind something happen with the popup list. (image attached wrong.png). When I click the arrow of the texbox part of the combobox, the popup hide, after a click again the popup part shows correctly. (image attached good.png)

We use this event:

  private void comboboxSearchAddress_TextChanged(object sender, EventArgs e)
        {
            if (comboboxSearchAddress.Text.Length > 2)
            {
  
                List<AddressPointType>
                    liAddrs = AddressPoint.SearchAddress(comboboxSearchAddress.Text);
  
                string s = comboboxSearchAddress.Text;
                 comboboxSearchAddress.Text = "";
                 comboboxSearchAddress.Items.Clear();
                for (int i = 0; i < liAddrs.Count; i++)
                {
                     
                    comboboxSearchAddress.Items.Add(new RadComboBoxItem(liAddrs[i].Caption,liAddrs[i]));
  
                }
                comboboxSearchAddress.Text = s;
                comboboxSearchAddress.Select(comboboxSearchAddress.Text.Length, 0);
                
            }
        }

Any Idea appreciate.
Thanks.
Csaba

DropDownList

answered on 16 May 2011

1 answer

259 views

Need Rich Text Editor similar to RadEditor

I am looking for any WinForms or WPF Telerik control which is similar to RadEditor for ASP.Net AJAX. That is user can design their page and retrieve the designed page as HTML as in RadEditor.

General Discussions

answered on 16 May 2011

7 answers

409 views

Export GridView with template to Excel

Hello.. how are you..

i have the next scene.. i have a grid nest into the other grid i am using the tools to export of telerik.. its a example:

public void Export(String sFilepath, RadGridView grvExportExcel)

{

ExportToExcelML exporter = new ExportToExcelML(grvExportExcel);

exporter.SummariesExportOption = SummariesOption.ExportAll;

exporter.RunExport(sFilepath);

}

but its doesn't work .. when i run this function its make the file succesfully but only export the primary grid and the template not...
i need export all information of the grid... if somebody can help me.. i will pleasure.. for your help.

public void Export(String sFilepath, GridViewTemplate grvtExportExcel)

{

RadGridView rgvGrid = new RadGridView();

foreach (GridViewDataColumn c in grvtExportExcel.Columns)

{

rgvGrid.Columns.Add(c);

}

foreach (GridViewDataRowInfo d in grvtExportExcel.Rows)

{

rgvGrid.Rows.AddNew(d);

}

ExportToExcelML exporter = new ExportToExcelML(rgvGrid);

exporter.SummariesExportOption = SummariesOption.ExportAll;

exporter.RunExport(sFilepath);

}

but its doesn't work neither....

regards...
thanks for your help.

GridView

answered on 12 May 2011

3 answers

201 views

Different Issues (RadDridView)

Hello,

I've evaluated your GridView and I'm on the point to buy the WinForms controlls.
But some issues are still unresolved on my site. I'd really appreciate if you can give some advices to the following points:

Why is the first line with a TextBox column not painted correctly? After collapse and expand is the content correct
For a custom editor I derrive from BaseCustomEditor and the for the element from RadTextBoxItem
As usual some keys such as backspace or delete are not effecting to the KeyPress event on the RadTextBoxItem. Therefore I tried to override ProcessCmdKey. But the overridden method will be never called
When the textbox columns change their values I want also that the bound data is changed. How can I achieve that?
In the CellBeginEdit method I set the height of the row to a specific value. But if I set the value above 156px a NullReferenceException is thrown. But why? I want to be able to set every height.

All listed points above have a corresponding todo comment in the attached sample project.
http://www.danflash.com/files/code/GridViewEvaluation.zip

Thank you very much.
Kind regards,
Danny

GridView

answered on 12 May 2011