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If you want to change the column width set automatically when column chart is created, use the columnWidthRatio and maxColumnWdith attributes in the <Column2DChart> element tag. If both of the two attributes are used, then the column width will be determined by the minimum value of columnWidthRatio and maxColumnWidth. For example, let's say that the size of the total area is 400px and the number of columns is 5, and if columnWidthRatio="0.1", maxColumnWidth="100", then the value of columnWidthRatio is used to determine the size of a column, so that 8px sized columns will be created.

...
<Column2DChart showDataTips="true" columnWidthRatio="1" maxColumnWidth="7.5" >
'''
</Column2DChart>
...
columnWidthRatio The columnWidthRatio attribute determines the column width by using the percentage of the width of categories. For example, let's say that the size of the total area is 400px and the number of columns is 5, and if the value is "0.5", then 50% of the area (200px) will be used to draw columns, so that the size of each column will be 40px.
maxColumnWdith The maxColumnWdith attribute determines the column width by using the value of Pixel.

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