Thanks for contacting Syncfusion support. We have analyzed your query. For placing the label inside the stacking column you can set “TextPosition” property of the datalabel as “middle” or “bottom”. Default value for “TextPosition” is “top”. This will place the datalabel at the “top” of the series . If “TextPosition” is set as “middle” then datalabel will be placed at the middle of the series and if “TextPosition” is set as “bottom”, then datalabel will be placed at the bottom of the series. Please find the below code example.
In the above code we have set the “TextPosition” of the datalabel as “middle”. Please find the screenshot of the chart.
In the above screenshot datalabels are placed inside the stacking column. We have prepared the sample as per you requirement. Please find the sample from below mentioned location.
Sample Link: https://www.syncfusion.com/downloads/support/forum/120793/ze/WebApplication22055509727
Please let us know if you have any concern.