Ppt.SaveToFile('Result.pptx', FileFormat. Private Shared Sub Main(args As String())ĭim chart As IChart = Tr圜ast(ppt.Slides(0).Shapes(0), IChart)ĭim sers As ChartSeriesFormatCollection = chart.SeriesĬ = ChartLegendPositionType.TopRightĭim cd1 As ChartDataLabel = sers(0).DataLabels.Add()Ĭd1.Position = ChartDataLabelPosition.Centerĭim cd2 As ChartDataLabel = sers(0).DataLabels.Add()Ĭd2.Position = ChartDataLabelPosition.Centerĭim cd3 As ChartDataLabel = sers(0).DataLabels.Add()Ĭd3.Position = ChartDataLabelPosition.Centerĭim cd4 As ChartDataLabel = sers(0).DataLabels.Add()Ĭd4.Position = ChartDataLabelPosition.Center

Step 1: Create a new instance of Presentation class and load test the file that contains the pie chart. Now, let's format pie chart to display percentages in data labels with following code snippet: Marks formatting with wavy, blue underlines when it is similar, but not exactly the same, as other formatting in your document. Mark formatting inconsistencies - (Added in 2002). Look at the pie chart below, it is not that informative if it doesn’t display data labels. Select this check box to allow Word to keep track of, or store, formatting information as you type, so that you can easily apply it elsewhere. formatting is the process of changing the way letters, numbers, punctuation marks, and symbols appear on the screen and in print. In the class of, it contains properties like LabelValueVisible, PercentageVisible, SeriesNameVisible, CategoryNameVisible, Position and etc, which will enable us to easily manage the data labels formatting as you desired. In this article, I would like to show you how to format data labels in PowerPoint presentation via Spire.Presentation.

In order to make your readers have an intuitive understanding of your chart, you can choose to set formatting of label to display series name, category name, value, percentage and adjust its displayed position. We may show/hide the non-printing character. By default, Microsoft PowerPoint automatically hides the data labels when we create a series chart on presentation slide. In tables you will see one additional character, the universal monetary symbol (), which displays variously at various point sizes and magnifications but upon close inspection is seen to be a circle with four lines radiating from the corners.

Chart of word formatting marks