Question

In my database, I have a table with a primary key identity column, and 3 other columns as follows.

I want to manually create a DataTable and save it to my SQL Server CE database. Can anyone help me tweak my code please?

DataTable table1 = new DataTable("MyTable1");
table1.Columns.Add("LastName");
table1.Columns.Add("FirstName");
table1.Columns.Add("SortColumn");
table1.Rows.Add("Doe", "John", 1);
table1.Rows.Add("Doe", "Mary", 2);

DataSet ds = new DataSet("notCritical1");
ds.Tables.Add(table1);

using (SqlCeConnection con = new SqlCeConnection(TestClickOnceApp.classes.ClassDatabase.m_connectionString))
{
    con.Open();
    SqlCeDataAdapter da = new SqlCeDataAdapter("Select * from MyTable1", con);
    da.Fill(ds, "MyTable1");
    da.Update(ds, "MyTable1");
}

Answer 1

I haven’t SqlCompact to test, but I presume you could write code like this

using (SqlCeConnection con = new SqlCeConnection(connectionString))   
{   
    con.Open();   
    SqlCeCommand cmd = new SqlCeCommand("Select * from MyTable1 Where 1=0", con);
    SqlCeDataAdapter da = new SqlCeDataAdapter();
    da.SelectCommand = cmd;
    SqlCeCommandBuilder cb = new SqlCeCommandBuilder(da);
    da.Update(table1);
}

no need to use a dataset

More details on the base class method DbDataAdapter.Update(DataTable t) can be found here