我正在使用带有 RAISERROR 的存储过程。SP 引发的错误不会被 c#.Net 中的 try catch 语句捕获。我使用 SqlDataSource 进行 SQL 连接和 SqlDataSource_Updating 事件来更新数据。
SQL 代码:
DECLARE @count int
@count=0
if(@count = 0)
begin
RAISERROR('Updation failed. record already exists', 16, 1)
end
c#代码:
protected void sqlDataSource_Updating(object sender, SqlDataSourceCommandEventArgs e)
{
try
{
// Assigns the update command parameter
e.Command.Parameters.Add(new SqlParameter("@fag", Flg));
e.Command.Parameters.Add(new SqlParameter("@Date", DateTime.Now));
}
//catch (SqlException ex)
//{
//}
catch (Exception ex)
{
// If so, checks the Exception message
if (ex.Message == "Updation failed. record Not exists")
{
// Display the details of the exception to the user
lblMessage.Text = " record already exists";
}
// Writes the error in log file
WriteErrorLog(ex.Message , "sqlDataSource_Updating");
}
}
SQL 数据源:
SelectCommand="SELECT [ID], [Name], [Flg] FROM [Master] ORDER BY Name "
InsertCommand="exec [Master_Insert] @ID, @Name, @Flg, @createdDate, @createdBy, @updatedDate, @updatedBy"
UpdateCommand="exec [Master_Update] @ID, @Name, @Flg, @updatedDate, @updatedBy"
DeleteCommand="DELETE FROM Master WHERE ID = @ID"
oninserted="sqlDataSource_Inserted"
oninserting="sqlDataSource_Inserting"
onupdated="sqlDataSource_Updated"
onupdating="sqlDataSource_Updating">
</asp:sqldatasource>
问候 Geetha