insert array without loop

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ASP.NET

can i insert array into database without using loop
i have a checkbox list containing project_id so i have insert that record in a table
for each project a new row

i am inserting subadmin for multiple project so i am keeping those records in a table
like

adminid  projectid
1         1
1         2
1         3
2         4
2         5
3         6
3         7
3         8
3         9
3         10

through checkbox list i m fetching projectid and store it in an array for particular admin
so without using loop(for insert query) can i insert these records in DB