[英]Returning PK of gridview when updating or inserting (ASP.NET, C#)
我需要对表的插入,更新和删除等所有更改进行审核,并且我使用的是带有自动生成的INSERT / UPDATE / DELETE语句的简单SQLDataSource和GridView。 问题是,当更新一行时,我想获取ID(主键)并将其放入审核表中-但是因为UPDATE查询的唯一参数是实际数据而不是主键,所以我不知道如何访问此信息。 这是我的UPDATE查询:
InsertCommand="INSERT INTO [NominalCode] ([VAXCode], [Reference], [CostCentre], [Department], [ReportingCategory]) VALUES (@VAXCode, @Reference, @CostCentre, @Department, @ReportingCategory)"
以下是审核的代码:
protected void SqlDataSource1_Updating(object sender, SqlDataSourceCommandEventArgs e)
{
string fields = e.Command.Parameters[0].Value.ToString() + "," + e.Command.Parameters[1].Value.ToString() + "," + e.Command.Parameters[2].Value.ToString() + "," + e.Command.Parameters[3].Value.ToString() + "," + e.Command.Parameters[4].Value.ToString();
System.Security.Principal. WindowsPrincipal p = System.Threading.Thread.CurrentPrincipal as System.Security.Principal.WindowsPrincipal;
string[] namearray = p.Identity.Name.Split('\\');
string name = namearray[1];
string queryString = "INSERT INTO Audit (source, action, item, userid, timestamp) VALUES (@source, @action, @item, @userid, @timestamp)";
using (SqlConnection connection = new SqlConnection("con string removed for privacy"))
{
SqlCommand command = new SqlCommand(queryString, connection);
command.Parameters.AddWithValue("@source", "Nominal");
command.Parameters.AddWithValue("@action", "Update");
command.Parameters.AddWithValue("@item", fields);
command.Parameters.AddWithValue("@userid", name);
command.Parameters.AddWithValue("@timestamp", DateTime.Now);
connection.Open();
try
{
command.ExecuteNonQuery();
}
catch (Exception x)
{
Response.Write(x);
}
finally
{
connection.Close();
}
}
}
好吧,我觉得很蠢。 该ID当然位于SQL查询的WHERE子句中! 由于某种原因,我粘贴了INSERT命令。
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