get 2 or column value from sql using c#

Question

1.00/5 (2 votes)

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i using a class file and i need help how to assine each value to them
like

C#

id =some value
name=some values
  var customer1 = new List<customer>();
            //   customer output=null;
            con.Open();
            SqlCommand cmd = new SqlCommand("Select * from SalesMan where salesmanname=@salesmanname and code=@usercode", con);
            cmd.Parameters.AddWithValue("@salesmanname", salesmanname);
            cmd.Parameters.AddWithValue("@usercode", usercode);
            SqlDataReader customer11 = cmd.ExecuteReader();
            while (customer11.Read())
            {
                customer c1 = new customer();
                c1.id = Convert.ToInt32(customer11.GetSqlValue(0).ToString());
                c1.companyrefid = Guid.Parse(customer11.GetSqlValue(0).ToString());
               
                customer1.Add(c1);
            }
       //     return customer1;</customer>

Posted 31-May-14 0:14am

Nandhini Devi

Updated 31-May-14 0:31am

Nirav Prabtani

v3

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Comments

Maciej Los 31-May-14 6:16am

?

[no name] 31-May-14 6:18am

Just like that: id = some_value; That is how you assign values in C#. What does some class file or SQL or columns have to do with your "question"?

Nandhini Devi 31-May-14 6:23am

var customer1 = new List<customer>();
// customer output=null;
con.Open();
SqlCommand cmd = new SqlCommand("Select * from SalesMan where salesmanname=@salesmanname and code=@usercode", con);
cmd.Parameters.AddWithValue("@salesmanname", salesmanname);
cmd.Parameters.AddWithValue("@usercode", usercode);
SqlDataReader customer11 = cmd.ExecuteReader();
while (customer11.Read())
{
customer c1 = new customer();
c1.id = Convert.ToInt32(customer11.GetSqlValue(0).ToString());
c1.companyrefid = Guid.Parse(customer11.GetSqlValue(0).ToString());

customer1.Add(c1);
}
// return customer1;

[no name] 31-May-14 6:34am

And? You do realize that we can't read your mind right? We don't have access to your database so there is no possible way we can know what it is that you think is not working with your code unless you tell us. First thing that strikes me as odd about your code is that you are getting the same value from the same column in your database and trying to do 2 different things with it. If you are only wanting 2 columns from your database, why are you selecting *? Doesn't that seem sort of wasteful to you? Your code won't even compile anyway, so you would need to fix those errors first.

Nandhini Devi 31-May-14 6:40am

i am getting values but dnt know how to store in list .i want those values for further process.how to do that ?

[no name] 31-May-14 6:43am

Just like you are doing? Look, it's really easy. If you are having some sort of a problem, you have to tell us what the problem is. We still can't read your mind.

[no name] 31-May-14 6:23am

are you using storeprocedure or query?

Nandhini Devi 31-May-14 6:25am

query only i am using customer as class which contains id and referenceid
i want the value to get assign to id and companyrefid from my query

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 31-May-14 6:24am

Not clear.

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OriginalGriff · Accepted Answer · 2014-05-31T00:40:00

Try this, it's a little clearer:

C#

List<customer> customers = new List<customer>();
con.Open();
using (SqlCommand cmd = new SqlCommand("Select Id, CompanyRefId from SalesMan where salesmanname=@salesmanname and code=@usercode", con))
    {
    cmd.Parameters.AddWithValue("@salesmanname", salesmanname);
    cmd.Parameters.AddWithValue("@usercode", usercode);
    using (SqlDataReader reader = cmd.ExecuteReader())
        {
        while (reader.Read())
            {
                customer c1 = new customer();
                c1.id = (int) reader["Id"];
                c1.companyrefid = (Guid) reader["CompanyRefId"];
                customers.Add(c1);
            }
        }

Provided your SQL table contains the two columns "Id" and "CompanyRefId", and they are INT and UNIQUEID respectively, you need no other conversion.