please define what do you mean under the DatabaseID and why it is not the same as RowID? With which data you fill the grid? Is user_id is the qnique id for your data? Do you fill the same id in the “id” field attribute of the xml data? If jqGrid find no id information in your input it uses 1,2,3… as ids. Probably it is your problem?
You can additionally define key:true property in the 'user_id' column. I hope this will also fix you problem. Nevertheless I recommend you to read this part of the documentation amd change either you XML data to be readed by jqGrid inclusive ids or include xmlReader parameter which follows to the same results.
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