DataGirdView绑定时出现的奇怪问题！
我在窗体的load事件里面帮定的数据，每次加载的时候正常，但是我在单击某一按钮执行更新数据库的操作后，调用load事件重新绑定数据，显示的是更新的数据。
但是我新建了一个窗体，代码是一样的东西，但是这次调用load事件却不显示更新的数据，显示仍然是旧数据，如果关闭窗体，重新打开显示的又是新数据，非常的奇怪，同样的两个窗体为什么那个就可以，到了一个新窗体里面就不行了，请大家帮忙！
代码：
//窗体加载时绑定数据
private void FrmUserManager_Load ( object sender , EventArgs e )
{
string SqlStr = "";
TV_Shopping_DataBaseConnection MyShopping = new TV_Shopping_DataBaseConnection ( );
SqlConnection MyDataBaseConnection = MyShopping.DataBaseConnectOjbect ( );
MyDataBaseConnection.Open ( );
SqlStr = "select userid as 'ID',userName as '姓名',userpurview as '权限',userTrue as '有效',userRemind as '备注'from TV_UserInfo ";
SqlDataAdapter SelectDataAdapter = new SqlDataAdapter ( SqlStr , MyDataBaseConnection );
DataSet SelectDataSet = new DataSet ( );
SelectDataAdapter.Fill ( SelectDataSet , "UserInfo" );
dataGridView1.DataSource = SelectDataSet.Tables [ "UserInfo" ];
MyDataBaseConnection.Close ( );
}
//更新数据库操作
TV_Shopping_DataBaseConnection MyShopping = new TV_Shopping_DataBaseConnection ( );
SqlConnection MyDataBaseConnection = MyShopping.DataBaseConnectOjbect ( );
MyDataBaseConnection.Open ( );
SqlStr = "update TV_UserInfo set UserId='" + txtUserId.Text + "',UserName='" + txtUserName.Text + "',UserPurview='"
+ UserPurview.Text + "',UserTrue='" + UserTrue.Text + "',UserRemind='" + UserRemind.Text + "'where Userid='"
+ txtUserId.Text + "'";
SqlDataAdapter UpdateDataAdapter = new SqlDataAdapter ( SqlStr , MyDataBaseConnection );
DataSet UpdateDataSet = new DataSet ( );
UpdateDataAdapter.Fill ( UpdateDataSet , "UserInfo" );
dataGridView1.DataSource = UpdateDataSet.Tables [ "UserInfo" ];
MyDataBaseConnection.Close ( );
this.FrmUserManager_Load ( this , e );//调用load事件重新绑定
以上是可以正常使用窗体中的代码
//新窗体的load事件
TV_Shopping_DataBaseConnection MyDataBaseConnection = new TV_Shopping_DataBaseConnection ( );
SqlConnection MyProductConnection = MyDataBaseConnection.DataBaseConnectOjbect ( );
MyProductConnection.Open ( );
SqlStr = "select ProNumber as '编号',ProName as '名称',ProColor as '颜色',ProSpecs as '规格',ProPrice as '价格',ProHelpNum as '助记码',"+ "ProRemind as '备注' from TV_Product";
SqlDataAdapter MyProductAdapter = new SqlDataAdapter ( SqlStr , MyProductConnection );
DataSet MyDataSet = new DataSet ( );
MyProductAdapter.Fill ( MyDataSet , "Product" );
dataGridView1.DataSource = MyDataSet.Tables [ "Product" ] ;
MyProductConnection.Close ( );
//更新数据库代码
TV_Shopping_DataBaseConnection MyDataBaseConnection = new TV_Shopping_DataBaseConnection ( );
SqlConnection MyProductConnection = MyDataBaseConnection.DataBaseConnectOjbect ( );
MyProductConnection.Open ( );
SqlStr = "update TV_Product set ProName='" + ProName.Text + "',ProPrice=" + ProPrice.Text + ",ProHelpNum='"
+ ProHelpNum.Text + "',ProColor='" + ProColor.Text + "',ProSpecs='" + ProSpecs.Text + "',ProRemind='"
+ ProRemind.Text + "' where ProNumber='" + ProNumber.Text + "'";
SqlDataAdapter UpdateProductAdapter = new SqlDataAdapter ( SqlStr , MyProductConnection );
DataSet UpdateDataSet = new DataSet ( );
UpdateProductAdapter.Fill ( UpdateDataSet , "Product" );
MyFrmProduct.FrmProduct_Load ( this , e );//调用窗体load事件重新绑定数据
以上是不好用窗体代码
更奇怪的是我把 SqlStr = "select ProNumber as '编号',ProName as '名称',ProColor as '颜色',ProSpecs as '规格',ProPrice as '价格',ProHelpNum as '助记码',"+ "ProRemind as '备注' from TV_Product";这句代码改成其他的查询语句，但是绑定的数据仍然是这个语句的数据，真是奇怪了。
[解决办法]
代码太乱了，加载数据和更新数据，使用一个SqlDataAdapter就好了，为什么要用两个？
[解决办法]
UpdateProductAdapter.updata(UpdateDataSet , "Product");
多么简单的方法。。
UpdateCommand 更新完数据后刷新下试试。。
[解决办法]
下面的那段代碼的連綫要関掉
MyDataBaseConnection.Close ( );
[解决办法]
MyProductConnection.Close();
應該是這個
