C#

datatb = new DataTable();
da.Fill(datatb);
chart1.DataSource = datatb;

// Create an empty table.
DataTable table = new System.Data.DataTable("Table1");

// Add three columns to the table.
table.Columns.Add("Category", typeof(String));
table.Columns.Add("Value", typeof(Double));
table.Columns.Add("SecondValue", typeof(Double));

// Add data rows to the table.
table.Rows.Add(new object[] { "Lost", 0, 17 });
table.Rows.Add(new object[] { "Very Good", 1, 5 });
table.Rows.Add(new object[] { "Good", 2, 0 });
table.Rows.Add(new object[] { "Unlikely", 3, 9 });
table.Rows.Add(new object[] { "Firm Order", 4, 1 });
DataSet set = new DataSet();

set.Tables.Add(table);
chart1.DataSource = set.Tables[0].DefaultView;
//chart1.DataSource = dv3;

chart1.Series["Series1"].XValueMember = "Category";
chart1.Series["Series1"].YValueMembers = "Value";
chart1.Series.Add("Series2");
chart1.Series["Series2"].XValueMember = "Category";
chart1.Series["Series2"].YValueMembers = "SecondValue";
chart1.DataBind();

select NAME_Product from Product where  Product.ID_Product IN ( '"+str1+"' ",  '"+str2+"' ",  '"+str3+"' )

public partial class Employee
{
    public void DoWork()
    {
    }
}

public partial class Employee
{
    public void GoToLunch()
    {
    }
}

faraz34 wrote:

How can we write the long source of a program in

2 or 3 files and relate them together at build time.

jschell wrote:

3. In C# you put all of the classes in a project which is then managed via a
solution.

csc /out:My.exe *.cs

Bastard Programmer from Hell

csc MyFirstClass.cs MySecondClass.cs etc.cs