I have data as below :
No.    Name      qty
1.     A        100
2.     B        300
3.     C        100
4.     A        100

I want to make the summary like this :

total all : 600
No.    Name      qty
1.     A        100
2.     B        300
3.     C        100
4.     A        100

so the summary display at the header of the report, it is possible without any subreport creation ?

thx

there is a groups, and the result is reset following the summary of the groups. Could it summarized totally?

thx

reset mean is the summary always return to the summary of the groups. for example : A --> 200
                             B --> 300
                             C --> 100
it is because I put group by Name. If there were no groups I can't copy as you tell into page header is like cannot copy to the area..

thx

Let's try to clarify.
Please, read carefully my first answer. If you insert a summary with these settings, then you'll end with a Gran Total at the report header showing the value 600 which is the sum you want. Is it correct?
The result is the same whether you are grouping by Name or not.
Note I don't tell you "copy into page header". I do tell "move the summary to the report header"