Updating a datarow

In the third type of cases, on which are going to focus this article, you may need to update the data base right after the end-user finishes modifying a single value of Rad Grid View. In order to be able to implement this functionality, you can handle the events of Rad Grid View or its Binding Source. Update(Data Set data Set, String src Table) at Windows Application1. Main() in C:\Documents and Settings\TPhalen\My Documents\Visual Studio Projects\Windows Application1\Module1.vb:line 44The program '[1816] Windows Application1.exe' has exited with code 0 (0x0). A typical scenario is, say you have to loop through a Data Table rows and do some calculations on the rows and delete some rows depending on the condition. Here is another page not write what you say, but what I think you mix up. Cor Cor, See: section close to the middle that starts "When using Update, the order of execution is as follows". NVar Char, 1073741823, "Description")) ' Dim nwind DS As Data Set = New Data Set() nwind DA. That you can do using the designer that makes it and then copy and paste it. I was changing little things, but after all I have changed all your code, not because it was fault, but that was easier to show, look to it as an alternative. NVar Char, 1073741823, "Description")) ' Dim nwind DS As Data Set = New Data Set() nwind DA. Fill(nwind DS, "Categories") Dim dt Table As Data Table Dim dr Row As Data Row dt Table = nwind DS. New Row() dr Row("Category Name") = "New Category Name" dr Row("Description") = "New Description" dt Table. (I even have searched for "using" on that page) Did you send maybe the wrong link? Close() End Sub Hi Tom, Read it to the end before you become afraid If you do it nice you have to make an Insert, an Update, and a Delete command. Close() End Sub Cor, Thanks so much for taking the time to show me how to make this work. I copied/pasted your code into my ide, made a few minor syntax fixes and got the following error : Unhandled Exception: System. Calling Data Set, Data Table, Data Row Accept Changes marks the respective rows as processed (Data Row State.

Fill(nwind DS, "Categories") Dim dt Table As Data Table Dim dr Row As Data Row dt Table = nwind DS. New Row() dr Row("Category Name") = "New Category Name" dr Row("Description") = "New Description" dt Table.

Modified, as that is how it knows to use the Insert Command, Delete Command, or Update Command respectively. Add followed by Accept Changes causes nothing to occur on your database. Open() Dim Sql Insert Command1 As Sql Command = New Sql Command() Sql Insert Command1. Open() Dim Sql Insert Command1 As Sql Command = New Sql Command() Sql Insert Command1.

Accept Changes on each row that it processes, so you don't need to call Accept Changes after calling Data Adapter. Command Text = "INSERT INTO Categories (Category Name, Description) VALUES (@Category Name, @Description)" Sql Insert Command1. I basically copy and pasted generated code for this fragment. Tom ==== Sub Main() Dim nwind Conn As Sql Connection = New Sql Connection ("Data Source=COL-TP5170-LT1\VSdot NET; Integrated Security=SSPI; Initial Catalog=Northwind;") Dim nwind DA As Sql Data Adapter = New Sql Data Adapter ("SELECT Category ID, Category Name, Description FROM Categories", nwind Conn) nwind Conn. I basically copy and pasted generated code for this fragment. Tom ==== Sub Main() Dim nwind Conn As Sql Connection = New Sql Connection ("Data Source=COL-TP5170-LT1\VSdot NET; Integrated Security=SSPI; Initial Catalog=Northwind;") Dim nwind DA As Sql Data Adapter = New Sql Data Adapter ("SELECT Category ID, Category Name, Description FROM Categories", nwind Conn) nwind Conn.

Close() End Sub Cor, See: section close to the middle that starts "When using Update, the order of execution is as follows".

Update(Data Row[] data Rows, Data Table Mapping table Mapping) at System.

Search for updating a datarow:

updating a datarow-19updating a datarow-26

Some applications may require updating the data base when the end-user is up to exit the applications. Current If current Is Not Nothing Then Edit Row = (CType(current, Data Row View)).

Leave a Reply

Your email address will not be published. Required fields are marked *

One thought on “updating a datarow”

  1. And mancino…Italian slang for “lefty.” While the historical biases and slurs against left-handers—sinister, gauche, and so on—run through my mind, I confess that what I first think of when it comes to left-handedness is Ned Flanders’s Leftorium on The Simpsons.