更新并刷新datagrid视图

Question

我有一个带Datagridview的数据输入表单，我使用的是本地database.sdf文件。当我搜索某个人的特定名称时，单击“编辑”按钮将显示一个新的更新表单。数据成功传递到更新表单

要求： 要从更新表单成功更新Person的数据，数据将在Datagridview中刷新并显示当我点击Update按钮并且Update表单Closes

错误： 我首先尝试了SqlceDataAdapter ADAP.Fill（databaseDataSet，“Mainform”）; //其余的代码将显示在// // 但是当我单击“更新”按钮时，它会更新数据，但也会在DatagridView中创建整个数据的整个副本。所以我试过SqlCeDataAdapter ADAP.Update（databaseDataSet，“Mainform”）;和此代码更新数据成功并且不创建任何副本，但Datagridview不刷新，仅在我关闭并再次打开应用程序时显示数据

代码尝试： 在表格1中：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Data.SqlServerCe;

namespace HDR2
{
public partial class frmUpdate : Form
{
    public string Name, Age, Gender, Family_Member, Family_Member_Name, Shnong, Dong, Grand, Amount, Phone_Number, Date_Registered, Date_Recieved, Status;
    private Form1 f1;

    public frmUpdate(Form1 f2)
    {
        InitializeComponent();
        f1 = f2;

    }
    public void passDgvValueToForm2()
    {
        NametxtUpdate.Text = Name;
        AgetxtUpdate.Text = Age;
        GendertxtUpdate.Text = Gender;
        FamilymembertxtUpdate.Text = Family_Member;
        FamilymembernametxtUpdate.Text = Family_Member_Name;
        ShnongtxtUpdate.Text = Shnong;
        DongtxtUpdate.Text = Dong;
        GrandtxtUpdate.Text = Grand;
        AmounttxtUpdate.Text = Amount;
        PhonenumbertxtUpdate.Text = Phone_Number;
        DateregisteredUpdate.Text = Date_Registered;
        daterecievedupdate.Text = Date_Recieved;
        StatuscbUpdate.Text = Status;
    }
    private void frmUpdate_Load(object sender, EventArgs e)
    {

    }



    private void update()
    {
        SqlCeConnection con = new SqlCeConnection("Data Source=Database.sdf");
        con.Open();
        using (SqlCeCommand cmd = new SqlCeCommand("UPDATE Mainform SET Name=@Name, Age=@Age, Gender=@Gender, Family_Member=@Family_Member, Family_Member_Name=@Family_Member_Name, Shnong=@Shnong, Dong=@Dong, Grand=@Grand, Amount=@Amount, Phone_Number=@Phone_Number, Date_Registered=@Date_Registered, Date_Recieved=@Date_Recieved, Status=@Status WHERE Name=@Name", con))
        {
            cmd.Parameters.AddWithValue("@Name", NametxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Age", AgetxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Gender", GendertxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Family_Member", FamilymembertxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Family_Member_Name", FamilymembernametxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Shnong", ShnongtxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Dong", DongtxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Grand", GrandtxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Amount", AmounttxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Phone_Number", PhonenumbertxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Date_Registered", DateregisteredUpdate.Text);
            cmd.Parameters.AddWithValue("@Date_Recieved", daterecievedupdate.Text);
            cmd.Parameters.AddWithValue("@Status", StatuscbUpdate.Text);
            cmd.ExecuteNonQuery();
            con.Close();

       }
        con.Close();


    }
    private void frmUpdate_FormClosed(Object sender, FormClosedEventArgs e)
    {
        f1.loadEmployee();
    }

    private void btnUpdate_Click_1(object sender, EventArgs e)
    {
        update();
        f1.loadEmployee();
        this.Close();



    }
  }
}

表格2 // frmUpdate：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Data.SqlServerCe;

namespace HDR2
{
public partial class frmUpdate : Form
{
    public string Name, Age, Gender, Family_Member, Family_Member_Name, Shnong,       Dong,   Grand, Amount, Phone_Number, Date_Registered, Date_Recieved, Status;
    private Form1 f1;

    public frmUpdate(Form1 f2)
    {
        InitializeComponent();
        f1 = f2;

    }
    public void passDgvValueToForm2()
    {
        NametxtUpdate.Text = Name;
        AgetxtUpdate.Text = Age;
        GendertxtUpdate.Text = Gender;
        FamilymembertxtUpdate.Text = Family_Member;
        FamilymembernametxtUpdate.Text = Family_Member_Name;
        ShnongtxtUpdate.Text = Shnong;
        DongtxtUpdate.Text = Dong;
        GrandtxtUpdate.Text = Grand;
        AmounttxtUpdate.Text = Amount;
        PhonenumbertxtUpdate.Text = Phone_Number;
        DateregisteredUpdate.Text = Date_Registered;
        daterecievedupdate.Text = Date_Recieved;
        StatuscbUpdate.Text = Status;
    }
    private void frmUpdate_Load(object sender, EventArgs e)
    {

    }



    private void update()
    {
        SqlCeConnection con = new SqlCeConnection("Data Source=Database.sdf");
        con.Open();
        using (SqlCeCommand cmd = new SqlCeCommand("UPDATE Mainform SET Name=@Name, Age=@Age, Gender=@Gender, Family_Member=@Family_Member, Family_Member_Name=@Family_Member_Name, Shnong=@Shnong, Dong=@Dong, Grand=@Grand, Amount=@Amount, Phone_Number=@Phone_Number, Date_Registered=@Date_Registered, Date_Recieved=@Date_Recieved, Status=@Status WHERE Name=@Name", con))
        {
            cmd.Parameters.AddWithValue("@Name", NametxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Age", AgetxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Gender", GendertxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Family_Member", FamilymembertxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Family_Member_Name", FamilymembernametxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Shnong", ShnongtxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Dong", DongtxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Grand", GrandtxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Amount", AmounttxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Phone_Number", PhonenumbertxtUpdate.Text);
            cmd.Parameters.AddWithValue("@Date_Registered", DateregisteredUpdate.Text);
            cmd.Parameters.AddWithValue("@Date_Recieved", daterecievedupdate.Text);
            cmd.Parameters.AddWithValue("@Status", StatuscbUpdate.Text);
            cmd.ExecuteNonQuery();
            con.Close();

       }
        con.Close();


    }
    private void frmUpdate_FormClosed(Object sender, FormClosedEventArgs e)
    {
        f1.loadEmployee();
    }

    private void btnUpdate_Click_1(object sender, EventArgs e)
    {
        update();
        f1.loadEmployee();
        this.Close();



    }
  }
}

//请注意，我已经尝试过ADAP.Fill但它不起作用。