Private Sub GetData() ' Empty the dataset so that there is only ' one batch worth of data displayed. dataToWatch.Clear() ' Make sure the command object does not already have ' a notification object associated with it. command.Notification = Nothing ' Create and bind the SqlDependency object...
PrivateSubGetData()' Empty the dataset so that there is only' one batch worth of data displayed.dataToWatch.Clear()' Make sure the command object does not already have' a notification object associated with it.command.Notification =Nothing' Create and bind the SqlDependency object' to the comm...
Private Sub GetData() ' Empty the dataset so that there is only ' one batch worth of data displayed. dataToWatch.Clear() ' Make sure the command object does not already have ' a notification object associated with it. command.Notification = Nothing ' Create and bind the SqlDependency object...
For example, you can store 10 pages worth of data in a local DataSet, and only query the data source for new data when the user navigates beyond the first or last page in the cache.For more information, see the .NET Data Access Architecture Guide....
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摘要:View Code 1 using (SqlConnection conn = new SqlConnection(connStr)) 2 { 3 string sql = "[PRinserTcheck]";//存储过程名 4 using (SqlCommand cmd = new SqlCommand(sql, conn)) 5 { 6 //执行存储过程 7 ...阅读全文 posted @xjt360阅读(128)编辑...
PrivateSubGetData()' Empty the dataset so that there is only' one batch worth of data displayed.dataToWatch.Clear()' Make sure the command object does not already have' a notification object associated with it.command.Notification =Nothing' Create and bind the SqlDependency object' to the comm...
Other changes Overview of all the changes can be found intracker, but I’d like bring special attention to items marked with#breakingin the title, because as you can guess, these might be breaking changes in some cases. Other worth mentioning are support for IPv6 in connection strings and ...
Private Sub GetData(ByVal Register As Boolean) ' Empty the DataSet so that there is only ' one batch worth of data displayed. dataToWatch.Clear() ' Make sure the command object does not already have ' a notification object associated with it. command.Notification = Nothing If Register Then...
forInt32s andInt64s. To measure the impact I did fairly synthetic test of fetching 200k rows with just one number column and theGen0allocations went down from 41000 to 22500 and allocated memory from ~124MB to ~68MB. I think that’s worth having 8 bytes “dangling” in the memory. ...