How To Set Integer Value In Buffer

I am trying to set a decimal value to the pipelinecolumn buffer, but it doesnt get set, and the value is NULL.

Here is the portion of the code of what I am trying to do:

if (columnInfos[x].colName.EndsWith("_CRC"))

{

int a;

a_cmp tst = new a_cmp();

a= tst.a_crc32(inputbufferstream); this function returns a integer value



buffer.SetDecimal(colInfo.bufferColumnIndex, Convert.ToDecimal(a));

}

Please let me know how to set a decimal value in the buffer.