Hi, A have a matrix inside a list. I want to freeze a group's header but it return this error: The matrix 'matrix1' includes a table header or column with FixedHeader set to true. This is not allowed on data regions inside other data regions. PS: I'm using SQL Server 2005. Thanks in advance. Ruben Fazendas

Hi Ruben, According to your description, you would like to freeze the column header of a matrix which was placed in a list. Frankly speaking, we couldn’t achieve this just set some properties. List and matrix are based on the same dataset, and the FixedHeader property was designed to freeze a whole dataset’s Header but not the snipping which was split by group. Workaround is needed. You destination to set FixedHeader is just to avoid Column header disappearing in your sight, So you could take some other measures to avoid the column header leaving from your sight, please refer to the methods below: 1. Limit the rows count showing on each page. 2. Set visibility to toggle displaying between summary and detail based on group. Moreover, you could refer to the thread below, please note that this workaround is only worked on VS 2008 or higher version: http://social.msdn.microsoft.com/Forums/en-US/sqlreportingservices/thread/8042730c-a258-49a5-9aae-da5de9f97eca/ Additionally, I would suggest you submit a feedback at http://connect.microsoft.com/ .Connect site is a connection point between you and Microsoft, and ultimately the larger community. You feedback enables Microsoft to make software and services the best that they can be, and you can learn about and contribute to exciting projects. Appreciate your understanding. I hope this can help you, if you have anything unclear, please feel free to let me know. Thanks, Bill Lu