As per RDL standard, you cannot add checkbox in report. Alternatively, you can use a checkbox image in the report and modify its visibility using expression. This section describes simple steps to design a checkbox report using the Report Designer.
Select the tablix cell and insert Image item.
Add the checkbox image to the report using the image manager.
Now, select table cell that contains the image item and set the image value of the checkbox image with the properties in the property panel.
Set the visibility of the image item with the dataset field value using the visibility property.
Now, the report preview can be visualized as follows.