public partial class FrmMainfo : Form
{
public FrmMainfo()
{
InitializeComponent();
}
string connStr = ConfigurationManager.ConnectionStrings["str"].ConnectionString;
private void button2_Click(object sender, EventArgs e)
{
FrmMadetail frmmadetail = new FrmMadetail();
frmmadetail.Show();
}
private void FrmMainfo_Load(object sender, EventArgs e)
{
comboBox2.SelectedIndex = 0;
comboBox3.SelectedIndex = 0;
string sql = "select Id,sbmc,sbbh,sbfl,sblx,ggxh,azwz,sccj,sybm,sycj from Information";
SqlConnection conn = new SqlConnection(connStr);
SqlCommand cmd = new SqlCommand(sql, conn);
conn.Open();
DataTable dt = new DataTable();
SqlDataAdapter sda = new SqlDataAdapter(cmd);
sda.Fill(dt);
dataGridView1.DataSource = dt;
}
public class DvgData
{
public string id = "";
public string ID
{
get
{
return id;
}
set
{
id = value;
}
}
}
private void dataGridView1ListHeadText()
{
dataGridView1.Columns[0].HeaderText = "编号";
dataGridView1.Columns[1].HeaderText = "设备名称";
dataGridView1.Columns[2].HeaderText = "设备编号";
dataGridView1.Columns[3].HeaderText = "设备分类";
dataGridView1.Columns[4].HeaderText = "设备类型";
dataGridView1.Columns[5].HeaderText ="规格型号";
dataGridView1.Columns[6].HeaderText ="安装位置";
dataGridView1.Columns[7].HeaderText ="生产厂家";
dataGridView1.Columns[8].HeaderText = "使用部门";
dataGridView1.Columns[9].HeaderText = "使用车间";
dataGridView1.Columns[10].HeaderText = "外形尺寸";
dataGridView1.Columns[10].Visible = false;
dataGridView1.Columns[11].HeaderText = "总重";
dataGridView1.Columns[11].Visible = false;
dataGridView1.Columns[12].HeaderText = "总功率";
dataGridView1.Columns[12].Visible = false;
dataGridView1.Columns[13].HeaderText = "出厂编号";
dataGridView1.Columns[13].Visible = false;
dataGridView1.Columns[14].HeaderText = "制造日期";
dataGridView1.Columns[14].Visible = false;
dataGridView1.Columns[15].HeaderText = "使用日期";
dataGridView1.Columns[15].Visible = false;
dataGridView1.Columns[16].HeaderText = "购入日期";
dataGridView1.Columns[16].Visible = false;
}
private void button1_Click(object sender, EventArgs e)
{
string azwz = ""; //定义一个string 类型的变量
azwz = comboBox3.SelectedItem.ToString();
string sbfl="";
sbfl = comboBox2.SelectedItem.ToString();
string sqf = "select * from Information where azwz = '" +azwz.Trim() + "'and sbfl = '" +sbfl.Trim() + "'";
SqlConnection conn = new SqlConnection(connStr);
SqlCommand cmd = new SqlCommand(sqf, conn);
conn.Open();
DataTable dt = new DataTable();
SqlDataAdapter sda = new SqlDataAdapter(cmd);
sda.Fill(dt);
dataGridView1.DataSource = dt;
this.dataGridView1ListHeadText();
}
private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (e.RowIndex > 0)
{
int id = (int)dataGridView1.Rows[e.RowIndex].Cells[0].Value;//记录选中的ID号
}
}
}
}
public partial class FrmMadetail : Form
{
public FrmMadetail()
{
InitializeComponent();
}
string connStr = ConfigurationManager.ConnectionStrings["str"].ConnectionString;
FrmMainfo frmmainfo = new FrmMainfo();
private void FrmMadetail_Load(object sender, EventArgs e)
{
string sqf = "select * from Information where ID = 1";
SqlConnection conn = new SqlConnection(connStr);
SqlCommand cmd = new SqlCommand(sqf, conn);
conn.Open();
DataTable dt = new DataTable();
SqlDataAdapter sda = new SqlDataAdapter(cmd);
sda.Fill(dt);
textBox1.Text = dt.Rows[0][1].ToString();
textBox2.Text = dt.Rows[0][2].ToString();
textBox3.Text = dt.Rows[0][3].ToString();
textBox4.Text = dt.Rows[0][4].ToString();
}
本人小白一个 现在需要把第一个窗体数据表格控件 选中的行 INT 记录下来 接着在 另外一个窗体LOAD事件中 利用这个记录值 用SQL语句进行查询 这个代码要如何实现呢 谢谢大家 初来咋到 全部自学啊 很辛苦
如果没猜错的话，你要写数据编辑界面，很简单啊传值，然后根据参数进行查询、赋值
这个操作过程大概是这样的：
选中或单击数据行新建一个编辑界面，编辑界面是固定的绘图格式，传给这个界面一个数据行的主键，根据这个主键搜索对应数据库中的数据，然后赋值给编辑界面中的控件。
我大致看了一下你的代码，我猜你可能是不知道怎么从数据行给编辑界面传值。