Question

I have a datatable fetching values from a stored procedure written as below:

SqlConnection sqlcon = new SqlConnection(ConfigurationManager.ConnectionStrings["db"].ConnectionString);
sqlcon.Open();

DataTable dt = new DataTable("tmp");
DataSet ds = new DataSet();
SqlDataAdapter da = new SqlDataAdapter();

SqlCommand cmd = new SqlCommand("usp_abc", sqlcon);

cmd.CommandType = CommandType.StoredProcedure;
da.SelectCommand = cmd;

da.Fill(dt);

Now, I need to loop through the datatable and get the values of this datatable and pass it is as a parameter to my stored proc.

Answer 1

I believe such operation is better done in the DB if possible instead of going to the DB for each row in the datatable row collection.

You can use foreach to loop through the datatable, each DataRow representing a row in the returned result.

foreach(DataRow row in dt.Rows)
{
     var col1 = row[0];  //access using column index/position

     var firstNameCol = row["FirstName"].ToString();  //access through column name
}

You can throw more light on what you want to do if it’s possible to move it to DB (using stored procedure)

• DataTable.Rows

Update: Passing value to stored proc using command.Parameters

cmd.Parameters.AddWithValue("@FirstName", firstNameCol);