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1 answer
270 views
I drew an example in the picture.
The format of the data table read from db is shown on the left.
I want to show this on the grid and zoom in
Grouping does not show column information in the row that is being expanded/reduced, but I need information in all rows.
I want to express it like BOM.
I want to expand/reduce to a specific key flexibly according to the column of the table I'm reading, but I don't know what to do.
Dess | Tech Support Engineer, Principal
Telerik team
 answered on 06 Dec 2022
1 answer
184 views

Hi,

I am trying to create a PDF Table but I  am missing one or more libraries that I should reference. The code fragment I am trying is as follows:

Table table = new Table(); TableRow firstRow = table.Rows.AddTableRow(); TableCell firstCell = firstRow.Cells.AddTableCell(); 

Block block = firstCell.Blocks.AddBlock(); 
block.InsertText("Testing"); 

Thanks

Maria
Telerik team
 answered on 05 Dec 2022
1 answer
227 views

I hava a model that contains IsSelected Property, and I want to bind the row IsSelected of gridview to that IsSelected, what should i do?

class MyClass
{
    public bool IsSelected { get; set; }
}

private BindingSource _bindingSource;
private List<MyClass> _myClassList;
private RadGridView _gridView;

private void DataBinding()
{
    _bindingSource = new BindingSource { DataSource = _myClassList };
    // how to bind _gridView.Rows.IsSelected to _myClassList.IsSelected?
    _gridView.DataSource = _bindingSource;
}

Dess | Tech Support Engineer, Principal
Telerik team
 answered on 05 Dec 2022
1 answer
229 views

Hello,  I am adding a 15mb image to the background of a RadDiagramShape.  The problem I am running into is the RadDiagram eats up 1gb of memory every time I open the form.  Eventually if I don't call GC.Collect the Image.FromStream blows up due to a memory limit.  I have traced it back to the RadDiagram utilizing a ton of memory.  The question I have is what performance considerations should I be looking at with the control?  I included the steps I am taking to add in the image.  

Thanks in advance!
Brian

 

                uiMap.DiagramElement.IsBackgroundSurfaceVisible = false;
                uiMap.SelectionMode = Telerik.Windows.Diagrams.Core.SelectionMode.None;

                RadDiagramShape backgroundImage = new RadDiagramShape()
                {
                    Name = "Image"
                };


                backgroundImage.IsConnectorsManipulationEnabled = false;
                backgroundImage.IsRotationEnabled = false;
                backgroundImage.IsResizingEnabled = false;
                backgroundImage.IsDraggingEnabled = false;
                backgroundImage.CaptureOnMouseDown = false;
                backgroundImage.IsEnabled = false;
                backgroundImage.IsFocusable = false;
                backgroundImage.IsHitTestVisible = false;
                backgroundImage.ShouldHandleMouseInput = false;
                backgroundImage.Shape = new Telerik.WinControls.RoundRectShape(0);
                backgroundImage.DiagramShapeElement.Image = floorplan;
                backgroundImage.Width = floorplan.Width;
                backgroundImage.Height = floorplan.Height;
                backgroundImage.ShouldHandleMouseInput = false;
                backgroundImage.NotifyParentOnMouseInput = false;
                backgroundImage.CaptureOnMouseDown = false;

               uiMap.AddShape(backgroundImage);

                Telerik.Windows.Diagrams.Core.ToolService toolService = uiMap.ServiceLocator.GetService<Telerik.Windows.Diagrams.Core.IToolService>() as Telerik.Windows.Diagrams.Core.ToolService;

                if (toolService != null)
                    toolService.ToolList[0] = new CustomPanningTool();

                uiMap.ActiveTool = Telerik.Windows.Diagrams.Core.MouseTool.PanTool;

 

                                
Dinko | Tech Support Engineer
Telerik team
 answered on 01 Dec 2022
2 answers
956 views

How to do this (I hope) simple action?

I tried to set BeginEditMode to different options, AllowEditRow is set to true, but when I press F2 (for example) nothing happens.

Data displayed ok.

What additionally have I do?

Why there is no guide in documentation? Or I didn't find it?

Thank you!

Vitalii
Top achievements
Rank 1
Iron
 answered on 29 Nov 2022
1 answer
196 views

Hello everyone.
Can anyone help me fix this?
Each Telerik Control has multiple entries in the Toolbox - that's just a small portion.
The duplicates all point to the same library.
The Version of each tool is identical to that of its duplicate.
A few times I've uninstalled and reinstalled. Does not fix it.
This problem cannot be fixed with Telerik Toolbox Configurator.
I would appreciate any help or advice you can provide

Thanks all.

Dess | Tech Support Engineer, Principal
Telerik team
 answered on 25 Nov 2022
15 answers
795 views
I have Q3 controls.  There is no tabstop property in my design properties window for raddropdownlist. And setting is programmatically to false does not work. What can I do?
Mark
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Rank 2
Bronze
Bronze
Veteran
 answered on 22 Nov 2022
1 answer
159 views

Hello,

I am working on the development of an application and I have some doubts in the handling of the PivotFieldList control.

I would like to know how to enter the onclick event of the "Update" button of the PivotFieldList, I want to place some validations when clicking on that button.

 

I would also like to know how to access the onclick event of the "OK" button that appears in each filter of the fields that are displayed in the PivotGrid, because I also want to add some validations when the button is clicked.

Thanks for the support.

Dinko | Tech Support Engineer
Telerik team
 answered on 21 Nov 2022
4 answers
293 views
In RadGridview I need Rowspan style. 
I tried the HtmlView Definition method, this method affected with ColumnHeader also. 
I need to merge the rows as the attached image. If there is any other method than the HTML definition, please suggest.
Dess | Tech Support Engineer, Principal
Telerik team
 answered on 18 Nov 2022
3 answers
2.1K+ views

[WinForm]

***Updated with Excel spreadsheet (Template.zip) and a simple Project (ReadExcelMap.zip) attachment.

Reference: https://docs.telerik.com/devtools/winforms/knowledge-base/import-data-from-excel

Question: How to get the Cell background color while importing from Excel spreadsheet?

E.g. The spreadsheet below with value and background color.

 

Import Spreadsheet:

XlsxFormatProvider formatProvider = new XlsxFormatProvider();
            Workbook workbook = formatProvider.Import(File.ReadAllBytes(@"C:\temp\Template.xlsx"));

            var worksheet = workbook.Sheets[0] as Worksheet;
            var table = new DataTable();


            CellSelection selection = worksheet.Cells[3, 25];
            ICellValue value = selection.GetValue().Value;
            CellValueFormat format = selection.GetFormat().Value;
            CellValueFormatResult formatResult = format.GetFormatResult(value);
            string result = formatResult.InfosText;

 

I could not find the relevant functions. Attempted the following but not working:
            IFill f = selection.GetFill().Value;
            ThemableColor c = selection.GetForeColor().Value;

 

Maria
Telerik team
 answered on 17 Nov 2022
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