將行添加到數據集

Question

如何創建手動填充的DataSet？即。填寫代碼或用戶輸入。我想知道所需的步驟，如果我需要先創建DataTable或DataRow，我真的不知道要填寫DataSet的步驟。

Answer 1

DataSet ds = new DataSet(); 

DataTable dt = new DataTable("MyTable"); 
dt.Columns.Add(new DataColumn("id",typeof(int))); 
dt.Columns.Add(new DataColumn("name", typeof(string))); 

DataRow dr = dt.NewRow(); 
dr["id"] = 123; 
dr["name"] = "John"; 
dt.Rows.Add(dr); 
ds.Tables.Add(dt); 

Answer 2

DataSet myDataset = new DataSet(); 

DataTable customers = myDataset.Tables.Add("Customers"); 

customers.Columns.Add("Name"); 
customers.Columns.Add("Age"); 

customers.Rows.Add("Chris", "25"); 

//Get data 
DataTable myCustomers = myDataset.Tables["Customers"]; 
DataRow currentRow = null; 
for (int i = 0; i < myCustomers.Rows.Count; i++) 
{ 
    currentRow = myCustomers.Rows[i]; 
    listBox1.Items.Add(string.Format("{0} is {1} YEARS OLD", currentRow["Name"], currentRow["Age"]));  
}