Manage Rows and Columns

To allow you to manage a table’s rows and columns in a PowerPoint presentation, Aspose.Slides provides the Table class, Table class, and many other types.

Set First Row as Header

  1. Create an instance of the Presentation class and load the presentation.
  2. Get a slide’s reference through its index.
  3. Create an Table object and set it to null.
  4. Iterate through all Shape objects to find the relevant table.
  5. Set the table’s first row as its header.

This JavaScript code shows you how to set a table’s first row as its header:

// Instantiates the Presentation class
var pres = new aspose.slides.Presentation("table.pptx");
try {
    // Accesses the first slide
    var sld = pres.getSlides().get_Item(0);
    // Initializes the null TableEx
    var tbl = null;
    // Iterates through the shapes and sets a reference to the table
    for (let i = 0; i < sld.getShapes().size(); i++) {
        let shp = sld.getShapes().get_Item(i);
        if (java.instanceOf(shp, "com.aspose.slides.ITable")) {
            tbl = shp;
            // Sets the first row of a table as its header
            tbl.setFirstRow(true);
        }
    }
    // Saves the presentation to disk
    pres.save("pres.pptx", aspose.slides.SaveFormat.Pptx);
} finally {
    if (pres != null) {
        pres.dispose();
    }
}

Clone Table’s Row or Column

  1. Create an instance of the Presentation class and load the presentation,
  2. Get a slide’s reference through its index.
  3. Define an array of columnWidth.
  4. Define an array of rowHeight.
  5. Add an Table object to the slide through the addTable method.
  6. Clone the table row.
  7. Clone the table column.
  8. Save the modified presentation.

This JavaScript code shows you how to clone a PowerPoint table’s row or column:

// Instantiates the Presentation class
var pres = new aspose.slides.Presentation("Test.pptx");
try {
    // Accesses the first slide
    var sld = pres.getSlides().get_Item(0);
    // Defines columns with widths and rows with heights
    var dblCols = java.newArray("double", [50, 50, 50]);
    var dblRows = java.newArray("double", [50, 30, 30, 30, 30]);
    // Adds a table shape to slide
    var table = sld.getShapes().addTable(100, 50, dblCols, dblRows);
    // Adds some text to the row 1 cell 1
    table.get_Item(0, 0).getTextFrame().setText("Row 1 Cell 1");
    // Adds some text to the row 1 cell 2
    table.get_Item(1, 0).getTextFrame().setText("Row 1 Cell 2");
    // Clones Row 1 at end of table
    table.getRows().addClone(table.getRows().get_Item(0), false);
    // Adds some text to the row 2 cell 1
    table.get_Item(0, 1).getTextFrame().setText("Row 2 Cell 1");
    // Adds some text to the row 2 cell 2
    table.get_Item(1, 1).getTextFrame().setText("Row 2 Cell 2");
    // Clones Row 2 as 4th row of table
    table.getRows().insertClone(3, table.getRows().get_Item(1), false);
    // Clones first column at the end
    table.getColumns().addClone(table.getColumns().get_Item(0), false);
    // Clones 2nd column at 4th column index
    table.getColumns().insertClone(3, table.getColumns().get_Item(1), false);
    // Saves the presentation to disk
    pres.save("table_out.pptx", aspose.slides.SaveFormat.Pptx);
} finally {
    if (pres != null) {
        pres.dispose();
    }
}

Remove Row or Column from Table

  1. Create an instance of the Presentation class and load the presentation,
  2. Get a slide’s reference through its index.
  3. Define an array of columnWidth.
  4. Define an array of rowHeight.
  5. Add an Table object to the slide through the addTable method.
  6. Remove the table row.
  7. Remove the table column.
  8. Save the modified presentation.

This JavaScript code shows you how to remove a row or column from a table:

var pres = new aspose.slides.Presentation();
try {
    var slide = pres.getSlides().get_Item(0);
    var colWidth = java.newArray("double", [100, 50, 30]);
    var rowHeight = java.newArray("double", [30, 50, 30]);
    var table = slide.getShapes().addTable(100, 100, colWidth, rowHeight);
    table.getRows().removeAt(1, false);
    table.getColumns().removeAt(1, false);
    pres.save("TestTable_out.pptx", aspose.slides.SaveFormat.Pptx);
} finally {
    if (pres != null) {
        pres.dispose();
    }
}

Set Text Formatting on Table Row Level

  1. Create an instance of the Presentation class and load the presentation,
  2. Get a slide’s reference through its index.
  3. Access the relevant Table object from the slide.
  4. Set the first-row cells' setFontHeight(float value).
  5. Set the first-row cells' setAlignment(int value) and setMarginRight(float value).
  6. Set the second-row cells' setTextVerticalType(byte value).
  7. Save the modified presentation.

This JavaScript code demonstrates the operation.

// Creates an instance of the Presentation class
var pres = new aspose.slides.Presentation();
try {
    // Let's assume that the first shape on the first slide is a table
    var someTable = pres.getSlides().get_Item(0).getShapes().get_Item(0);
    // Sets first row cells' font height
    var portionFormat = new aspose.slides.PortionFormat();
    portionFormat.setFontHeight(25);
    someTable.getRows().get_Item(0).setTextFormat(portionFormat);
    // Sets the first row cells' text alignment and right margin
    var paragraphFormat = new aspose.slides.ParagraphFormat();
    paragraphFormat.setAlignment(aspose.slides.TextAlignment.Right);
    paragraphFormat.setMarginRight(20);
    someTable.getRows().get_Item(0).setTextFormat(paragraphFormat);
    // Sets the second row cells' text vertical type
    var textFrameFormat = new aspose.slides.TextFrameFormat();
    textFrameFormat.setTextVerticalType(aspose.slides.TextVerticalType.Vertical);
    someTable.getRows().get_Item(1).setTextFormat(textFrameFormat);
    // Saves the presentation to disk
    pres.save("result.pptx", aspose.slides.SaveFormat.Pptx);
} finally {
    if (pres != null) {
        pres.dispose();
    }
}

Set Text Formatting on Table Column Level

  1. Create an instance of the Presentation class and load the presentation,
  2. Get a slide’s reference through its index.
  3. Access the relevant Table object from the slide.
  4. Set the first-column cells' setFontHeight(float value).
  5. Set the first-column cells' setAlignment(int value) and setMarginRight(float value).
  6. Set the second-column cells' setTextVerticalType(byte value).
  7. Save the modified presentation.

This JavaScript code demonstrates the operation:

// Creates an instance of the Presentation class
var pres = new aspose.slides.Presentation();
try {
    // Let's assume that the first shape on the first slide is a table
    var someTable = pres.getSlides().get_Item(0).getShapes().get_Item(0);
    // Sets the first column cells' font height
    var portionFormat = new aspose.slides.PortionFormat();
    portionFormat.setFontHeight(25);
    someTable.getColumns().get_Item(0).setTextFormat(portionFormat);
    // Sets the first column cells' text alignment and right margin in one call
    var paragraphFormat = new aspose.slides.ParagraphFormat();
    paragraphFormat.setAlignment(aspose.slides.TextAlignment.Right);
    paragraphFormat.setMarginRight(20);
    someTable.getColumns().get_Item(0).setTextFormat(paragraphFormat);
    // Sets the second column cells' text vertical type
    var textFrameFormat = new aspose.slides.TextFrameFormat();
    textFrameFormat.setTextVerticalType(aspose.slides.TextVerticalType.Vertical);
    someTable.getColumns().get_Item(1).setTextFormat(textFrameFormat);
    pres.save("result.pptx", aspose.slides.SaveFormat.Pptx);
} finally {
    if (pres != null) {
        pres.dispose();
    }
}

Get Table Style Properties

Aspose.Slides allows you to retrieve the style properties for a table so that you can use those details for another table or somewhere else. This JavaScript code shows you how to get the style properties from a table preset style:

var pres = new aspose.slides.Presentation();
try {
    var table = pres.getSlides().get_Item(0).getShapes().addTable(10, 10, java.newArray("double", [100, 150]), java.newArray("double", [5, 5, 5]));
    table.setStylePreset(aspose.slides.TableStylePreset.DarkStyle1);// change the default style preset theme
    pres.save("table.pptx", aspose.slides.SaveFormat.Pptx);
} finally {
    if (pres != null) {
        pres.dispose();
    }
}
Manage Table Manage Cells