如果你理解namespace,应该试出来。 1.create a new .cds file. 2. file2.cs namespace Solectron.SQLServerDAL { /// <summary> /// Group 的摘要说明。 /// </summary> public class Group { public Group() { // // TODO: 在此处添加构造函数逻辑 // } public DataTable DemoTest() { DataTable dt = null; return dt; } } 3. at file1.vb 1) if file1 and file2 is not at one project, need add reference. 2) file1 SQLServerDAL.Group group = new SQLServerDAL.Group(); this.datagrid.DataSource = group.DemoTest();
1.create a new .cds file.
2. file2.cs
namespace Solectron.SQLServerDAL
{
/// <summary>
/// Group 的摘要说明。
/// </summary>
public class Group
{
public Group()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
public DataTable DemoTest()
{
DataTable dt = null;
return dt;
}
}
3. at file1.vb
1) if file1 and file2 is not at one project, need add reference.
2) file1
SQLServerDAL.Group group = new SQLServerDAL.Group();
this.datagrid.DataSource = group.DemoTest();