Question

I have two seperate databases from which I want to retrieve data and display in one grid view. The difficult I have is that I have a product key only in the table from the one database and the same set of product keys agains the actual products products in the other database and now I want to display the product data in one grid view….if this makes sense.

How can I do this, merge the data and display the product data agains the keys in the one grid.

string connString = "Data Source=.\\SQLEXPRESS;Initial Catalog=LRVWebsite;user ID=sa;password=lrmg;";
SqlConnection sqlCon;
OleDbConnection conn;

DataSet setOleDb;
DataSet dsSql;
private void bindData()
{
    try
    {
        conn = new OleDbConnection(@"Provider=Microsoft.Jet.OleDb.4.0;
                                Data Source =" + Server.MapPath("App_Data\\LR Product Database 2000.mdb"));
        conn.Open();

        setOleDb = new DataSet();
        OleDbDataAdapter dbaOle = new OleDbDataAdapter("SELECT * FROM tblProducts", conn);

        dbaOle.Fill(setOleDb);
        sqlCon = new SqlConnection(ConfigurationManager.ConnectionStrings["LRVWebsite"].ToString());
        sqlCon.Open();
        dsSql = new DataSet();

        SqlDataAdapter dba = new SqlDataAdapter(@"SELECT C.CustomerFirstName,C.CustomerLastName, C.CustomerCompany,C.CustomerPosition,C.CustomerCountry,C.CustomerProvince,C.CustomerContact,CP.ActionDate,CP.ProductCode,CP.CustomerEmail FROM tblCustomers C INNER JOIN tblCustomerProducts CP ON C.CustomerEmail = CP.CustomerEmail ORDER BY ActionDate DESC", connString);
        //@"SELECT C.CustomerFirstName,C.CustomerLastName,C.CustomerCompany,C.CustomerPosition,C.CustomerCountry,C.CustomerProvince,C.CustomerContact,CP.ActionDate,CP.ProductCode,CP.CustomerEmail FROM tblCustomers C INNER JOIN tblCustomerProducts CP ON C.CustomerEmail = CP.CustomerEmail ORDER BY ActionDate DESC", connString);
        dba.Fill(dsSql);

        dsSql.Merge(setOleDb);

        GridView1.DataSource = dsSql;
        GridView1.DataBind();


        sqlCon.Close();

This is what I have tried.Now, how can I get the product key to correlate with the actual product in the other table which contains the same product key?

Answer 1

I think this is a commonly faced scenario. Here is a detailed link from msdn.

Merge Data Set Contents