1. The design-time preview of the HtmlTextBox throws the "Name cannot begin with the '>' character..." error when the not equal (<>) operator is used in the value expression as it incorrectly tries to parse the operator as HTML markup. The standalone designer does not have a design-time preview for the HtmlTextBox and the issue is not present there.

This does not affect the actual preview of the report and can be worked around by negating the equal (=) operator using the Not operator instead.

2. The design-time preview of the PictureBox throws a null reference exception when it has a binding that changes its value based on one of the fields from the data source. The preview incorrectly tries to respect this binding which will not work in design time as the data is not fetched at this point. Instead, the design-time preview should use the default value from the Value property of the PictureBox, which is what the standalone designer does.

This does not affect the actual report preview.

3. The design-time preview of an HtmlTextBox located in a data item throws a null reference exception when it has a conditional formatting rule that changes the appearance of the HtmlTextBox based on the RowNumber data function. Again, this function cannot be executed successfully during design time as the data is not available yet.

Since this issue is also related to the preview during design time, it does not affect the actual report preview either.