Merge pull request #545 from telerik/new-kb-avoid-table-splits-across-pages-radpdfprocessing-ed4d52ea5b3d4a51a18316dc0eb6ae6a

Added new kb article avoid-table-splits-across-pages-radpdfprocessing

Author: YoanKar

knowledge-base/avoid-table-splits-across-pages-radpdfprocessing.md

@@ -0,0 +1,94 @@
+---
+title: Avoiding Table Splits Across Pages Using FixedContentEditor in RadPdfProcessing
+description: Learn how to measure tables in RadPdfProcessing to prevent them from splitting across pages in a PDF document.
+type: how-to
+page_title: Prevent Table Splits Across Pages in RadPdfProcessing
+slug: avoid-table-splits-across-pages-radpdfprocessing
+tags: pdf, processing, table, document, position, page, break, split
+res_type: kb
+ticketid: 1686584
+---
+
+## Environment
+
+| Version | Product | Author | 
+| ---- | ---- | ---- | 
+| 2025.1.205| RadPdfProcessing |[Desislava Yordanova](https://www.telerik.com/blogs/author/desislava-yordanova)| 
+
+## Description
+
+When adding tables in [RadPdfProcessing]({%slug radpdfprocessing-overview%}) using the [RadFixedDocumentEditor](https://docs.telerik.com/devtools/document-processing/libraries/radpdfprocessing/editing/radfixeddocumenteditor), tables may sometimes split across pages if they cannot fit within the remaining space on the current page. To ensure a table fits entirely on one page and starts on a new page if necessary, you can adopt a strategy to measure the table size and calculate the remaining page height.
+
+This article demonstrates how to prevent tables from splitting across pages and apply page breaks before adding tables using FixedContentEditor.
+
+## Solution
+
+Measuring the table and calculating the remaining page height is the suitable approach. For precise positioning, you can use the [FixedContentEditor](https://docs.telerik.com/devtools/document-processing/libraries/radpdfprocessing/editing/fixedcontenteditor). This editor allows you to measure and draw tables with exact positioning. Below is an example implementation:
+
+```csharp
+        static void Main(string[] args)
+        {
+            GeneratedTableWithFixedContentEditor();
+        }
+
+        private static void GeneratedTableWithFixedContentEditor()
+        {
+            RadFixedDocument document = new RadFixedDocument();
+            RadFixedPage page = document.Pages.AddPage();
+
+            FixedContentEditor editor = new FixedContentEditor(page);
+            Point currentPosition = new Point(0, 0);
+
+            List<Table> tables = new List<Table>(); 
+            tables.Add(GenerateTable(50));
+
+            tables.Add(GenerateTable(15)); //can fit
+            //tables.Add(GenerateTable(30)); //can't fit
+
+            foreach (Table item in tables)
+            {
+                Size size = item.Measure();
+
+                if (size.Height < (page.Size.Height - currentPosition.Y))
+                {
+                    editor.Position.Translate(currentPosition.X, currentPosition.Y);
+                    currentPosition = new Point(0, currentPosition.Y + size.Height + 10);
+                    editor.DrawTable(item);
+                }
+                else
+                {
+                    page = document.Pages.AddPage();
+                    editor = new FixedContentEditor(page);
+                    editor.DrawTable(item);
+                    currentPosition = new Point(0, size.Height + 10);
+                }
+
+            }
+
+            PdfFormatProvider provider = new PdfFormatProvider();
+            string outputFilePath = "exported.pdf";
+            File.Delete(outputFilePath);
+            File.WriteAllBytes(outputFilePath, provider.Export(document, TimeSpan.FromSeconds(10)));
+            Process.Start(new ProcessStartInfo() { FileName = outputFilePath, UseShellExecute = true });
+        }
+
+        private static Telerik.Windows.Documents.Fixed.Model.Editing.Tables.Table GenerateTable(int numberOfRows)
+        { 
+            Table table = new Table();
+            table.LayoutType = Telerik.Windows.Documents.Fixed.Model.Editing.Flow.TableLayoutType.FixedWidth;
+
+            for (int i = 0; i < numberOfRows; i++)
+            {
+                TableRow row = table.Rows.AddTableRow();
+                TableCell cell = row.Cells.AddTableCell();
+                cell.Blocks.AddBlock().InsertText("Row: "+i);
+            }
+            
+            return table;
+        }
+```
+
+## See Also
+
+- [FixedContentEditor]({%slug radpdfprocessing-editing-fixedcontenteditor%})
+- [Tables]({%slug radpdfprocessing-editing-table%}) 

libraries/radpdfprocessing/editing/table.md

@@ -299,4 +299,5 @@ As of **Q3 2024**, along with the BorderStyle.*Single*, RadPdfProcessing offers
  * [Creating Custom Layout Tables with RadPdfProcessing]({%slug customize-table-layout-radpdfprocessing%})
  * [Implementing Column Span in RadPdfProcessing Tables]({%slug table-column-span-radpdfprocessing%})
  * [Generating a Table with RadFixedDocumentEditor]({%slug generate-table-with-radfixeddocumenteditor%})
+ * [Avoiding Table Splits Across Pages Using FixedContentEditor in RadPdfProcessing]({%slug  avoid-table-splits-across-pages-radpdfprocessing%})