Problem with deleting row in access database

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Hello guys,

I`m trying to delete a row in an access database, but when I try to update the dataset it give me this error:

"Update requires a valid DeleteCommand when passed DataRow collection with deleted rows."

I tried to solve it on my own, but I can't seem to fix it.

If anyone can give me any advice I will be very thankful.

Here is my code.
Thanks for all the help in advance.

currentRow = e.RowIndex;
ds1 = new DataSet();
con = new System.Data.OleDb.OleDbConnection();
con.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source=DataSource/PhoneBookData.mdb";
con.Open();
string sql = "SELECT * From CONTACT";
da = new System.Data.OleDb.OleDbDataAdapter(sql, con);
da.Fill(ds1, "CONTACT");

DataRow dRow = ds1.Tables["CONTACT"].Rows[0];
ds1.Tables["CONTACT"].Rows[currentRow].Delete();
da.Update(ds1, "CONTACT");

Posted 20-Oct-11 21:34pm

Techno13

Updated 20-Oct-11 21:36pm

Dalek Dave

v2

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Dalek Dave 21-Oct-11 3:37am

Edited for Grammar and Syntax.

2 solutions

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Uday P.Singh · Answer 1 · 2011-10-20T21:45:00

Solution 1

You need to use SQLCommandBuilder for creating the delete command.(Remember you always need primary key for using SQLCommandBuilder)

Or you can try This[^] for SQLDataAdapter without using SQLCommandBuilder.

for further queries comment here!

hope it helps :)

Posted 20-Oct-11 21:45pm

Uday P.Singh

Wayne Gaylard · Answer 2 · 2011-10-20T21:47:00

You need to create an OledbCommand and then assign it to the DataAdapter, something like this:-

C#

command = new OleDbCommand(
        "DELETE * FROM Contacts WHERE ContactID = ?",
        con);
    parameter = command.Parameters.Add(
        "ContactID", OleDbType.Char, 5, "ContactID");
    parameter.SourceVersion = DataRowVersion.Original;
    dataAdapter.DeleteCommand = command;

Hope this helps