C# 以第二种形式获取数据datagridview
我有两张C# 以第二种形式获取数据datagridview,c#,winforms,C#,Winforms,我有两张表格。在表格1中,我有两个组合框,它从存储过程和按钮中获取两个参数以触发结果。单击按钮时,结果应显示在表单2中,该表单具有datagridview 表格1中的我的代码(btn事件)。我真的不知道这是否正确 private void button1_Click(object sender, EventArgs e) { try { string C = ConfigurationManager.ConnectionStrings["D"].Connectio
表格
。在表格1中,我有两个组合框
,它从存储过程
和按钮
中获取两个参数以触发结果。单击按钮时,结果应显示在表单2中,该表单具有datagridview
表格1中的我的代码(btn事件)。我真的不知道这是否正确
private void button1_Click(object sender, EventArgs e)
{
try
{
string C = ConfigurationManager.ConnectionStrings["D"].ConnectionString;
using (var con = new SqlConnection(C))
using (var cmd = new SqlCommand())
{
SqlDataReader myReader;
cmd.CommandText = ("[dbo].[spInfo]");
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@Periode2", cbPeriode2.SelectedValue.ToString());
cmd.Parameters.AddWithValue("@Periode1", cbPeriode1.SelectedValue.ToString());
con.Open();
myReader = cmd.ExecuteReader();
if(myReader.HasRows)
{
DataTable datatable = new DataTable();
datatable.Load(myReader);
//datagridview1.DataSource = datatable;
}
con.Close();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
new Form2().ShowDialog();
}
Form2(formload事件)
我不知道怎么在这里取唱片
private void Form2_Load(object sender, EventArgs e)
{
}
将数据从form1传递到form2
来自表格1
private void button1_Click(object sender, EventArgs e)
{
try
{
string C = ConfigurationManager.ConnectionStrings["D"].ConnectionString;
using (var con = new SqlConnection(C))
using (var cmd = new SqlCommand())
{
SqlDataReader myReader;
cmd.CommandText = ("[dbo].[spInfo]");
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@Periode2", cbPeriode2.SelectedValue.ToString());
cmd.Parameters.AddWithValue("@Periode1", cbPeriode1.SelectedValue.ToString());
con.Open();
myReader = cmd.ExecuteReader();
DataTable datatable = new DataTable();
if(myReader.HasRows)
{
datatable.Load(myReader);
//datagridview1.DataSource = datatable;
}
con.Close();
ShowForm2(datatable);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public void ShowForm2(DataTable yourData)
{
DataTable Data = yourData;
Form2 frm = new Form2(Data);
frm.Show();
}
public class Form2
{
public Form2()
{
InitializeComponent();
//Default Consturctor
}
private DataTable LocalData;
public Form2(DataTable Data)
{
InitializeComponent();
LocalData = Data;
}
public void Form2_Load(object sender, EventArgs e)
{
//Consume LocalData Here
}
}
在表格2上
private void button1_Click(object sender, EventArgs e)
{
try
{
string C = ConfigurationManager.ConnectionStrings["D"].ConnectionString;
using (var con = new SqlConnection(C))
using (var cmd = new SqlCommand())
{
SqlDataReader myReader;
cmd.CommandText = ("[dbo].[spInfo]");
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@Periode2", cbPeriode2.SelectedValue.ToString());
cmd.Parameters.AddWithValue("@Periode1", cbPeriode1.SelectedValue.ToString());
con.Open();
myReader = cmd.ExecuteReader();
DataTable datatable = new DataTable();
if(myReader.HasRows)
{
datatable.Load(myReader);
//datagridview1.DataSource = datatable;
}
con.Close();
ShowForm2(datatable);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public void ShowForm2(DataTable yourData)
{
DataTable Data = yourData;
Form2 frm = new Form2(Data);
frm.Show();
}
public class Form2
{
public Form2()
{
InitializeComponent();
//Default Consturctor
}
private DataTable LocalData;
public Form2(DataTable Data)
{
InitializeComponent();
LocalData = Data;
}
public void Form2_Load(object sender, EventArgs e)
{
//Consume LocalData Here
}
}
问题/问题是什么?如果在Form1中单击按钮,则如何在form2 datagridview中获取记录Hi的可能副本。myData是否为form1=我的数据库连接?LocalData的含义是什么?thnx检查编辑后的代码,用上述form1代码替换您的代码,LocalData是form2tnx中用于和逻辑的变量