c# - SqlDataAdapter doesn't delete a record -

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i use dataset store data , sqldataadapter work database.

for change records in database first edit rows (insert,edit,delete) datatable in dataset ..

then 

datarow dr = datasetmain.tables["tbl_error"].select("error_name='" + error.name + "'")[0];             datasetmain.tables["tbl_error"].rows.remove(dr);     sqldataadapter adp = new sqldataadapter("select * tbl_error", svariable._databaseconnectionstring);                 sqlcommandbuilder bui = new sqlcommandbuilder(adp);     adp.update(datasetname,tbl_error);

for insert or edit record every thing work charm ... delete not work ..

i`m sure row in tbl_error deleted adp.update won't delete database ...

how can find problem ?

calling rows.remove() equivalent call rows.delete() + acceptchanges(). due acceptchanges, update() don't modification.

then replace:

datasetmain.tables["tbl_error"].rows.remove(dr);

by 

dr.delete()

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