No value given for one or more require parameter

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Hello Guys, i am facing a issue and i dont know why i am getting this error and how to solve it please guide me how can i do this
i am getting error when i am get data in datagridview

What I have tried:

string query = "Select Product_Name As [ProductName],COUNT(ProductName) As [Qty],SUM(Price) As [Price] FROM [Sales Record] GROUP BY [Product Name]";
 using (OleDbConnection conn = new OleDbConnection(connStr))
 {
     using (OleDbDataAdapter adapter = new OleDbDataAdapter(query, conn))
     {
         conn.Open();
         DataSet ds = new DataSet();
         if (ds != null)
         {

             adapter.Fill(ds);

             dataGridView1.DataSource = ds.Tables[0];
             conn.Close();
             dataGridView1.Rows[1].Visible = false;
             dataGridView1.Columns[0].Width = (150);
             dataGridView1.Columns[1].Width = (275);
             dataGridView1.Columns[2].Width = (250);
         }
     }
 }

Posted 2-Jan-17 13:24pm

Member 9983063

Updated 2-Jan-17 19:13pm

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JayantaChatterjee · Answer 1 · 2017-01-02T19:13:00

This error means: You are trying to fetch a field which doesn't exist in your database table.

please check your SQL.

string query = "Select Product_Name As [ProductName],COUNT(ProductName) As [Qty],SUM(Price) As [Price] FROM [Sales Record] GROUP BY [Product Name]";

you create alias of Product_Name as [ProductName] and after that you are trying to count that ProductName as quantity, I think this statement are suspicious to Me..:-)
Please check with your Table Fields name.