Tell me an other way to send data to database when header checkbox is checked in gridview

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ASP.NET

SQL-Server

--scenario

column1 column2 column3
122 delhi 34
123 bombay 44
124 chennai 54

--A header checkbox is there. Now when i click the header checkbox and all the row are selected and when i save all these data should go in backend and saved in one table.

--I m using this approach.

--when haeder checkbox is checked...i am looping through the grid and then

adding in a arraylist as below

ArrayList IDs = null;

122:delhi:34,123:bombay:44,124:chennai:54,


--now in backend i m creating a function which splits the array like
122 delhi 34
123 bombay 44
124 chennai 54

--and then i am saving in the table.


--Tell me an other approach