Hello Handy ,

  Thank you for your reply and help . I think I have solved this problem . Thank you very much !

Hello Yudi ,

     Thanks for your reply and help . I think I did not describe clearly before . In the foreground program , I have a TextBox named txtJobName . To execute my program , I input a value in the TextBox and click the search button . I hope it will sift the data from database according to the jobname I input .

    To debug my code , I find sifting the data from database is executed in InitializeDataSource , and the sifted data is correct . But the result is that the data of webgrid is not sifted . I do not know why was that . Besides , I add the two methods you recommended , but it does not work .

    Can you give some samples about using RowFilter to sift the data from webgrid ?Because I do not know whether this problem will occur when I use RowFilter to sift the data .

   Thanks a lot !  

Hello Riendy ,

   Thank you for your help . I want to know whether there is the newest development about the issue I put forward . Because I have to use the function that I have raised in my project , I am looking forward to your respond eagerly .

  Thanks a lot !

Hello Martin ,

   Thank you for your help . I want to know whether there is the newest development about the problem I put forward . Because I have to use the control that integrating WebTreeView with WebCombo in my project , I am looking forward to your respond eagerly .

  Thanks a lot !

Hello Yudi , 

   Firstly , thank you for your reply and help . In my code , I put a batch of update operations in the WebGrid1_BatchUpdate of C# Source file . And in the ISDataSource code , I did not add the update method . That mean I update the data through background program , not the ISDataSource code .

  I want to know whether I can execute update operation in accordance with the above method and there will no the alert that I have said . How can I do ?

 Thanks !