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这里我有一个窗体,其中包含一个datagrid视图和三个按钮,即编辑,删除和返回。 Internally当我加载窗体它显示DataGrid中正确的数据,但假设如果我编辑或删除记录通过单击编辑或删除按钮,当这种形式来到执行这些操作后,前景DataGrid视图isn没有显示更新的数据。 任何帮助将受到欢迎..... 注 - 此表单不会关闭,当我点击编辑或删除按钮,它只是进入后台。 我的代码如下: -如何更新从后台到前台的表单时的DataGrid视图?
namespace RDASMS
{
public partial class LoginDb : Form
{
DataTable dt = new DataTable();
public LoginDb()
{
InitializeComponent();
}
//OleDbConnection vcon = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=F:\workspace\RDASMS\RDASMS\rdadb.mdb");
public Form ReferToAdmin
{
get;
set;
}
private void LoginDb_Load(object sender, EventArgs e)
{
// TODO: This line of code loads data into the 'rdadbDataSet1.login' table. You can move, or remove it, as needed.
// this.loginTableAdapter.Fill(this.rdadbDataSet1.login);
// TODO: This line of code loads data into the 'rdadbDataSet.login' table. You can move, or remove it, as needed.
//this.loginTableAdapter.Fill(this.rdadbDataSet.login);
MyOleDbConnection.Open();
DataSet ds = new DataSet();
//DataTable dt = new DataTable();
ds.Tables.Add(dt);
OleDbDataAdapter da = new OleDbDataAdapter();
da = new OleDbDataAdapter("select * from login", MyOleDbConnection.vcon);
/*da.Fill(dt);
logindb_dataGridView.DataSource = dt.DefaultView;*/
da.Fill(dt);
logindb_dataGridView.DataSource = dt;
logindb_dataGridView.AutoResizeColumns();
MyOleDbConnection.Close();
}
private void logindb_panel_Paint(object sender, PaintEventArgs e)
{
}
private void logindbback_Click(object sender, EventArgs e)
{
this.Close();
this.ReferToAdmin.Show();
}
private void logindbdelete_Click(object sender, EventArgs e)
{
DeleteRecord dr = new DeleteRecord();
dr.ReferToLogindb = this;
dr.Show();
this.Hide();
}
private void logindbedit_Click(object sender, EventArgs e)
{
EditRecord er = new EditRecord();
er.ReferToLogindb = this;
er.Show();
this.Hide();
}
}
}