RDL报表分页显示表头

<TablixRowHierarchy>
          <TablixMembers>
            <TablixMember>
              <KeepWithGroup>After</KeepWithGroup>
              <RepeatOnNewPage>true</RepeatOnNewPage> 加上这句就可以了
              </TablixMember>
            <TablixMember>
              <Group Name="详细信息" />
            </TablixMember>
            <TablixMember>
              <KeepWithGroup>Before</KeepWithGroup>
            </TablixMember>
          </TablixMembers>
        </TablixRowHierarchy>