Program Chairs. Contact Details:. Shalini Urs. Executive Director and Professor. International School of Information Management. University of Mysore, Manasagangotri.
Mysore — Email: office isim. Don't over complicate this. If you don't have one, set one. This should have been part of the initial design. From walking through this Forum I see this as a common error, but don't understand why this wasn't caught in the design walkthroughs. Go to Edit in DatasetDesigner.
Select your table by right clicking on it. Click on the Advance Options Click on the Refresh the Data Table check box 5. Click Ok. Click Next 7. Click Next again 8. Click Finish Finally, Retest the code. Hi I had read all posts and some of them ar similar to me, in the following cases: 1. My datatable is dinamically create, so I don't have a designer view. My datatable it has a primary key, so I don't nee to create one.
All my commands have the SQL statement setup. SqlConnection My. SqlCommand My. AllocationSelect, New SqlClient. SqlCommand "insert into Sol. Add New SqlClient.
SmallInt, 2, "BizId". SmallInt, 2, "SubRegId". SmallInt, 2, "PmtModeId". SmallInt, 2, "CarId". Decimal, 5, "PctAlloc". SqlCommand "delete from Sol. SqlCommand "update Sol. SmallInt, 2, "AllocId". Fill Me. Update dsData, "LstAllocations" Please please any ideas?? Its really not fair to assume that this will solve everyone's problem. I have this same problem and I read this entire post.
For me:. I don't have the option of selecting the refresh data box as it is grayed out even after I set the primary key. After a long overdue return to DB work I had the same problem today when trying to Update after changing data in a dataGridView. My problem was, as one of Claudeb's items states, a lack of primary key both in the table and the dataset as I had created them merely just to remind myself of a little ADO. I too had same problem and I successfully cleared it by using solutions given in the Forum I need to clarify the solution with easy two steps No column with int or bigint datatype and set primary key option.
If your table doesnot contain such column Insert a column with int or bigint datatype and set it as primary key. This is useful for the Table Adapter to Update columns. What I did was: first, I added a PK to my table.
That solved the problem. Hope this helps. This is the result which works for me a little simplified, had some more Columns besides "Value" which where editable. In this case you have everything you need to fix the problem. GetUpdateCommand ;. Update dataSet, "dataMember" ;. I tried nearly everything suggested: Setting a primary key, unique field names with no special characters or spaces and I was unable to check the refresh table data due to it being disabled.
Dim con As New OleDb. OleDbCommandBuilder da. As soon as I moved it down to here below da was defined my da. Update statement worked!!!! I guess thats one of the new things in vb. Since I am new to. Update Me. Now, i deleted the trick and manage the field not nullable and finally insert the row without problem.
Blah, it kinda worked. Now when i update changes it updates all the rows with the same changes :. Hi guys I'm still a noob in Visual Basic, im also experiencing the same problems, i can't update my table once i start editing it, i get this error "Update requires a valid UpdateCommand when passed DataRow collection with modified rows.
I was wondering how do you create an update command for a single ROW only?? As in, the data in the datagrid can be edited anytime? Hope this info helps Osama's solution helps a lot. However, this seems to be a two way issue and that is but the second way out At least thats what i have found.
Select the column you want to set as Primary Key and select Primary Key from the resulting menu items its about the first item. I definitely have valid int primary keys in dataset table and in database. The code has been working for 11 years, but stopped working when I moved to. Net 3. It simply fails to generate the Insert command under certain circumstances.
This is pretty close to my solution. Here is similar method using sqlcommand builder, and mysql connectionstring which is stored in setting strings. As documented on MSDN someplace. FillSchema sqlemp, SchemaType. Source sqlempDA. Fill sqlemp sqlconn. Then if the table is without a primary key this can also cause problems but again no error message from the MS. MS developers on this must make their families very proud that they can waste so many peoples time I know this is a reply to an old post, however this error is still relevant today.
I found the error is caused by not having at least 1 of your table fields being a primary key. So if you make certain that the table you are trying to update has at least 1 primary key field, this will not then cause an error and update your table. Tip: If you are updating changes in a Datatable, use the code below as this will update ALL changes in one action. Validate Me. EndEdit Me. UpdateAll Me. The content you requested has been removed. Ask a question.
Quick access. Search related threads. Remove From My Forums. Answered by:. Archived Forums. NET Managed Providers. NET managed providers, especially System. SqlClient, System. Odbc and System. Sign in to vote. It is my understanding that when using a TableAdapter and selecting the proper options, Insert, Delete and Update statements are generated. The Update statement should work just using the following: myTableAdapter.
Update changes ; Where changes is the DataSet containing the modified data. This logic works great for one of the tables in the DB but not for another. Learning this new stuff is Confusing at best - Frustrating at worst.
Help appreciated, Michael. Tuesday, February 21, PM. Try this, it worked to me: Go to edit dataset with designer you can go there from the "Data" menu then "show data sources" and "Edit dataset with designer". Tell me if it works. Saturday, September 9, PM. This error message appears to be some sort of catch-all. Primary key - duplicates, nulls, etc. I guess it's too much to ask that error messages be accurate instead of wasting my time looking for an Update statement that is already there.
Thanks for your comments, Michael. Thursday, February 23, PM. Check the Update, Insert, Delete command of the myTableAdapter, and check the query statement of all of them. TableAdapters are created for only one table, if you want to modify more than one table, you have to change the query statements according to your needs, or create a second table adapter for the second table. Wednesday, February 22, PM. I checked the commands before I posted the question - It is a second table adapter.
I even created a new project from scratch with just that table adapter - no luck. Here's what I found that resolved the problem Not a product of a JOIN or a table that includes an expression--just a table. A primary key or unique column on the table.
The column names can't contain special characters. The columns can't "participate" in Foreign Key constraints. Proposed as answer by mkmurray Wednesday, June 24, PM. Thursday, June 15, PM. Monday, September 11, AM. The "Refresh the data Table is not being saved.
Monday, September 11, PM. Tuesday, September 19, AM. GetUpdateCommand da. Saturday, September 30, AM. I had the same Problem too. I solved the Problem very easy: Look up for your table and check if you have a PrimaryKey. If not set it! Proposed as answer by dwanders Thursday, January 15, PM. Friday, October 13, PM. Thanks a lot! It took me 4 hours to find out about that check box. Thursday, November 30, PM. Thanks Claude It resolved my problem. Friday, December 15, PM.
Thanks, I appreciate your help. Monday, January 8, PM. Thanks, I tried this , followed by configuration change suggested by Osama Alborbar just above, and together they work! Wednesday, February 21, PM. Hello all, I've tried all that, added a primary key and tried to set the "Refresh" property in the dataset designer I can check it, but every time I open the dialog box again it has become unchecked again but it still doesn't work!
This is hair-rising!!! Microsoft, what have you been doing with this! Moreover, since it does not have any "updatecommand" property only an "update" method , it prevents me from using things like SQLCommandBuilder. What were people thinking when they implemented this? I'm essentially just trying to reproduce the one-click functionality I had in Access with a totally simple table.
Has anybody any further idea? Friday, March 30, PM. I had a similar problem. It turned out that I had forgotten to set a primary key for the table which wasn't working.
After I corrected that and reconfigured, it worked fine. Tuesday, April 17, PM. Your tip worked fine for me. Thank you. Tuesday, June 12, PM. I don't have this error message, but when I use update, the database is not updated at all. Please check it. To use BindingNavigator control to make a data access project, here are these steps I made :. Presume using an Access database StaffDB. The table has five fields Text type :. StaffNumber set as Primary key.
During wizard, select StaffDB. Set StaffBindingNavigator. Set StaffBindingSource. Add code in Form1. Object, ByVal e As System. Update Me.
End Sub. Right-click the database file StaffDB. Most probably you have not defined a primary key for your table. Add PK and try again. I have re-created my application twice now to be certain of this and I still keep getting the same error message. I hate to be obtuse - though I frequently am - but I'm coming from a VB6 background and I'm trying to come up to speed. Still, I don't seem to understand when you say " You need to define DeleteCommand property for the TableAdapter object ".
It seems to me I have done that. Aren't these just new queries added to the table adapter? My background is still trying to tell me I need to the queries in the appropriate method, ie the DeleteQuery in the RowDeleted event of the DataGridView.
If you click in advanced after entering Configure on the Table Adapter, and you see both boxes ticked, but in the properties panel, deletecommand is empty, how i can i make it auto generate the code, so it does show. I dont really understand when its ticked, why its not producing the code. It has in the rest of the commands, such as , Insert, Update etc This is rather odd I think the code has been put in, but when i right click the TableAdapter and look in the Properties, it still does not show deletecommand.
It has been some time since i played with the designer datasets but i do remember having an issue with the commands when making changes to the datasets. Sometimes it seems that changes will reset the commands. And i am sure that has to do with the fact it builds the commands based on your columns. Instead of generating new commands i found that i would go back and see the checkboxes cleared.
I also want to say that it had cleared on me before when making some other changes that were not directly related to the columns. Otherwise the problem will always exist. SqlCommandBuilder will not help you if you don't have a primary key field. Note If there is enough information in the main query, the InsertCommand, UpdateCommand, and DeleteCommand commands are created by default when the TableAdapter is generated.
If these commands are not generated, you may receive an error when executing the TableAdapter. Update method. As others have said you need to make sure you have a primary key set on the table for the auto-generated update code to be created. I did this but was still seeing the same message of. I then discovered that you then need to refresh the table adapter as well makes sense when you think about it!
While you are doing this it may also be worth double checking that you had the Generate Insert, Update and Delete statements option selected like the below. Then just click through the wizard, the final screen should confirm that it will create the redo the code required now with the primary key :.
All you have to do is edit the database and ensure that at least one column is identified as a Primary Key. In my simple example, this could be the name column — although more realistically I would add an auto-numbering identity column which will ensure that all values in that column are unique.
Question So I had this working last week. On scDB. DataSource; myStagingTableAdapter. Update table ; The StagingTableAdapter has an additional query which takes 'filter' as a parameter.
Fill ; da. GetUpdateCommand ; Update ;.
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