IExcelChart Interface

Information for a chart inside a sheet or an object.

Syntax

IExcelChart = interface(IEmbeddedObjects);

Methods

Name	Description
SeriesInSubchart	Returns the number of series on each subchart. Note that this property only works in xlsx files: In xls files it will always return 0.
AddSubchart	Adds a new subchart to the existing chart. Note that if the current active subchart is empty, this method will not add a new subchart, but replace the empty one. In that case, SubchartCount won't change. This method only works in xlsx files, not xls.
SetChartOptions	Sets the chart options of a specific subchart inside the chart. Note that while a chart can have multiple subcharts inside (for example one pie subchart and one line subchart), normally there is only one subchart and so the SubchartPos parameter is normally 1.
GetSeries	Returns a series definition.
GetSeriesInSubchart	Returns a series definition for a given subchart. Note: This method only works in xlsx files.
SetSeries	Sets a Series value. Note that for xlsx charts, this will change the data range and the options of the series. If you only want to change the data range, pass null options to the method.
SetSeriesInSubchart	Sets a Series value. Note that for xlsx charts, this will change the data range and the options of the series. If you only want to change the data range, pass null options to the method.
AddSeries	Adds a series to the chart.
DeleteSeries	Deletes the series at position index.
GetBubbleSeries	Returns the bubble definition for a series when in a bubble chart.
SetBubbleSeries	Sets a Series value. Note that for xlsx charts, this will change the data range and the options of the series. If you only want to change the data range, pass null options to the method.
GetChartAxis	Returns the axis information for this chart. Note that this might be more than one, if the chart has a secondary axis.
SetChartAxis	Sets the options for either the primary or secondary pair of axis.
GetChartLegend	Information about the Legend of the chart.
SetChartLegend	Sets the legend properties.
RemoveChartLegend	Removes the Legend from the chart.
GetTitle	Returns the title of the chart.
SetTitle	Sets the title of the chart. This method is only implemented for xlsx charts.
GetDataLabels	Returns all the labels for the chart. Note that Axis have their labels defined inside their own definition.
SetDataLabels	Changes the labels for the chart. You should always get the values with GetDataLabels, modify them, and change them back with this method.
GetDataLabelsRange	Returns the range of cells for a "Label Contains: " "Value from Cells" option in the labels. Note that for this to work, you also need to use the string [CELLRANGE] in the label definition.
SetDataLabelsRange	Sets the range of cells for a "Label Contains: " "Value from Cells" option in the labels. Note that for this to work, you also need to use the string [CELLRANGE] in the label definition.
GetTrendline	Gets a trendline for a chart. This method is only implemented for xlsx charts.
SetTrendline	Gets a trendline for a chart. This method is only implemented for xlsx charts.
GetImageProperties	Returns image position and size.
AddImage	Overloaded AddImage(TUIImage, IImageProperties) AddImage(TBytes, IImageProperties) AddImage(TStream, IImageProperties) AddImage(string, IImageProperties) AddImage(TBytes, TXlsImgType, IImageProperties) AddImage(TStream, TXlsImgType, IImageProperties)
DeleteImage	Deletes the image at position imageIndex. Note that if the image is grouped, this will remove the full group. To remove a particular image inside a group, use IEmbeddedObjects.DeleteObject(Integer, string).
ClearImage	Overloaded ClearImage(Integer) ClearImage(Integer, Boolean, string)
AddAutoShape	Adds an autoshape to an existing embedded chart. Note that the coordinates for the shape are in chart coords, meaning that only row1, row2, col1 and col2 are used, and they represent the percentage in 1/4000 of the coordinate. So 0 means the top and left of the parent chart, and 4000 means the bottom and right of the parent chart.

Properties

Name	Description
IsXlsxChart	Returns true if the chart is defined inside an xlsx file instead of xls. While both charts in xls and xlsx files are mostly compatible, some behaviors can change depending on what type of chart this is. For example, if the first series in an xls chart is pie, it won't draw gridlines even if the second isn't. In xlsx charts, if another series is not pie, Excel will draw the gridlines.
Background	Returns the chart background if there is one defined, or null if there is none.
DefaultFont	Returns the default font for all text in the chart that do not have a font defined.
DefaultLabelFont	Returns the default font for all labels in the chart that do not have a font defined.
DefaultAxisFont	Returns the default font for Axis in the chart that do not have a font defined.
DefaultAxisTitleFont	Returns the default font for Axis title in the chart that do not have a font defined.
DefaultTitleFont	Returns the default font for Title in the chart that do not have a font defined.
Style	This is a number between 1 and 48 which defines many standard properties for the chart, like the default line width for the series or the legend. The default style is 2.
SubchartCount	A chart can have multiple subcharts inside: For example one bar chart and one pie chart. This method returns how many subcharts you have inside the main chart. Note that this property only works in xlsx files: In xls files it will always return 1.
ChartOptions	Returns the type of chart and the options specific for that kind of chart. There might be more than one ChartOptions returned, since you can mix more than one type of chart on a simple chart. (One for each series). You need to look at the series ChartOptionsIndex to know to which one it refers.
PlotArea	Returns or sets the plot area definition for the chart. Note: Setting the plot area only works in xlsx files.
PlotEmptyCells	Defines how null cells will be plotted on the chart.
ShowDataInHiddenRowsAndCols	Defines if hidden rows and columns will be used when plotting values.
SeriesCount	Returns the count of series on this chart.
ObjectCount	The number of objects that are embedded inside this chart.
ImageCount	The number of images in the chart.
Chart3DOptions	Returns the 3D options for the chart, or null if the chart isn't 3D.
SideWall	The wall next to the y-axis in a 3D-chart.
BackWall	The wall at the back of a 3D-chart
Floor	The floor in a 3D-chart.