行的选择

选取一个表中的一个数据字段

DataSet custDS1 = new DataSet();
da1.Fill(custDS1, "cheshi_2007");
DataTable biao=new DataTable();
biao=custDS1.Tables["cheshi_2007"];
DataRow workRow = biao.Rows[0];

string mimay=workRow[0].ToString();
string mima=Decode(mimay);
textBox2.Text=mima;
根据行来更新或增加新行的数据
DataSet custDS1 = new DataSet();
da1.Fill(custDS1, "cheshi_2007");
DataTable biao=new DataTable();
biao=custDS1.Tables["cheshi_2007"];
int biaoc;
biaoc=biao.Rows.Count;
DataColumn myColumn = new DataColumn();
// Set various properties.
myColumn.ColumnName = "解密后的密码";

myColumn.DataType = System.Type.GetType("System.String");

myColumn.ReadOnly = false;
biao.Columns.Add(myColumn);
for(int i = 0; i < biaoc; i++)
{
DataRow workRow = biao.Rows[i];
workRow[2]=Decode(workRow[1].ToString());
}
dataGrid1.SetDataBinding(custDS1,"cheshi_2007")