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Home Java javaTutorial How to add complex borders to Excel cells using GrapeCity Documents for Java library in Java?

How to add complex borders to Excel cells using GrapeCity Documents for Java library in Java?

Apr 19, 2025 pm 08:39 PM
apache excel form red

How to add complex borders to Excel cells using GrapeCity Documents for Java library in Java?

Create Excel tables and set cell borders using Java and GrapeCity Documents for Java components

Many Java developers need to add various styles of borders to cells when creating Excel files. This article will demonstrate how to use GrapeCity Documents for Java components (rather than Apache POI) to implement this functionality efficiently, especially creating complex border styles as shown in the image above.

The following code snippet shows how to create a workbook and set different types of borders (solid, dotted, dashed, double lines, etc.) for the "B2:E6" area, as well as different colors:

 /*
https://demo.grapecity.com.cn/documents-api-excel-java/demos/
addborderstorange?devLang=java
*/
// Create a workbook Workbook = new Workbook();
IWorksheet worksheet = workbook.getWorksheets().get(0);
IRange rangeB2_E6 = worksheet.getRange("B2:E6");

// Set the outer border style and color rangeB2_E6.getBorders().setLineStyle(BorderLineStyle.DashDot);
rangeB2_E6.getBorders().setColor(Color.GetGreen());

// Set the internal horizontal border rangeB2_E6.getBorders().get(BordersIndex.InsideHorizontal).setLineStyle(BorderLineStyle.Dashed);
rangeB2_E6.getBorders().get(BordersIndex.InsideHorizontal).setColor(Color.GetTomato());

// Set the internal vertical border rangeB2_E6.getBorders().get(BordersIndex.InsideVertical).setLineStyle(BorderLineStyle.Double);
rangeB2_E6.getBorders().get(BordersIndex.InsideVertical).setColor(Color.GetBlue());

// Set the top border separately rangeB2_E6.getBorders().get(BordersIndex.EdgeTop).setLineStyle(BorderLineStyle.Medium);
rangeB2_E6.getBorders().get(BordersIndex.EdgeTop).setColor(Color.GetRed());

// Save Excel file workbook.save("AddingBordersToRange.xlsx");

This code first creates a workbook and worksheet, and then selects the "B2:E6" area. After that, the line shape and color of the outer border of the area and the inner horizontal and vertical borders are set respectively. Finally, save the result as the "AddingBordersToRange.xlsx" file. This method flexibly controls cell border styles to meet various complex typesetting needs. Note that this code uses GrapeCity Documents for Java, not Apache POI. To use Apache POI to implement similar functions, please refer to its API documentation.

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