设想: 我只想更新我的数据库,介绍用户对其信息所作的改动。 我的守则是:
SqlCommandBuilder cb = new SqlCommandBuilder(da);
dt.Rows[0][2] = txtname.Text;
dt.Rows[0][3] = txtinterests.Text;
dt.Rows[0][4] = txtlocation.Text;
da.SelectCommand = new SqlCommand(sqlcommand, conn);
da.Update(dt);
我知道它会是显而易见的,但我错了什么? 没有任何错误,所有文件都正确汇编,但没有发生。 本记录可以更正。
你们需要界定数据检索的“最新信息”概念(可能的话,还包括“通信”)。
For each Modified row in the datatable, it will fire the command you specify as the UpdateCommand.
For each New row in the datatable, it will fire the command you specify as the InsertCommand.
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