通过按钮点击C#Winform获取动态创建表单中每条记录的ID

Question

I have a form that returns all appointments of a certain doctor. What I want to know is how to get the ID of each returned data.

Here's what I'm trying to achieve. 1. Create controls dynamically based on the number of appointments on this particular doctor. 2. To edit each appointments - but in order to do that. I need to get the ID of a specific panel through a click event. What I have right now is.. I only get the ID of the last record –

MySqlConnection con = new MySqlConnection("Server = localhost ;Database = mica_userclient_laravel; username = root;");
// MySqlConnection con = new MySqlConnection("Server = sql12.freemysqlhosting.net; Database = sql12221392; Uid=sql12221392; Password=5gZN1uN6NX;");
MySqlDataAdapter da = new MySqlDataAdapter(@"SELECT users.id, 
        users.fname, users.mname, users.lname, 
        appointments.created_at, appointments.id, 
        appointments.status 
        FROM users, appointments 
        WHERE users.id = user_id 
          AND appointments.status = 0 
          AND appointments.client_id = '" + textBox2.Text + "'", con);

DataTable dt = new DataTable();
da.Fill(dt);
//textBox1.Text = dt.Rows[1].ItemArray[5].ToString();

//login.quantity = textBox2.Text;

//label4.Text = Convert.ToDateTime(dt.Rows[1].ItemArray[4]).ToString("MMM dd, yyyy");
//label7.Text = Convert.ToDateTime(dt.Rows[1].ItemArray[4]).ToString("h:mm tt");
//label3.Text = dt.Rows[1].ItemArray[3].ToString() + ", " + dt.Rows[1].ItemArray[1].ToString();

for (int i = 0; i < dt.Rows.Count; i++)
{

    textBox[i] = new TextBox();
    textBox[i].Name = "n" + i;
    textBox[i].Text = dt.Rows[i].ItemArray[5].ToString();
    textBox[i].Visible = true;
    textBox[i].Location = new Point(txtboxX, txtboxY);
    txtboxY += 25;
    panel[i] = new Panel();
    panel[i].Name = "n" + i;
    panel[i].Width = 793;
    panel[i].Height = 56;
    panel[i].BackColor = Color.WhiteSmoke;
    panel[i].Location = new Point(panelX, panelY);
    panelY += 80;




    label[i] = new Label();
    label[i].Name = "n" + i;
    //label[i].Parent = panel[i];
    label[i].Font = new Font("Century Gothic", 14);
    label[i].Height = 22;
    label[i].Width = 250;
    label[i].ForeColor = Color.Gray;
    label[i].Text = dt.Rows[i].ItemArray[2].ToString() + ", " + dt.Rows[i].ItemArray[1].ToString();
    label[i].Location = new Point(labelX, labelY);

    label1[i] = new Label();
    label1[i].Name = "n" + i;
    //label[i].Parent = panel[i];
    label1[i].Font = new Font("Century Gothic", 14, FontStyle.Bold);
    label1[i].Height = 22;
    label1[i].Width = 250;
    label1[i].ForeColor = Color.Gray;
    label1[i].Text = Convert.ToDateTime(dt.Rows[i].ItemArray[4]).ToString("MMM dd, yyyy - h:mm tt");
    label1[i].Location = new Point(label1X, label1Y);

    imgbtn[i] = new BunifuImageButton();
    imgbtn[i].BackColor = Color.Transparent;
    imgbtn[i].SizeMode = PictureBoxSizeMode.Zoom;
    imgbtn[i].ImageLocation = @"Image\edit.png";
    imgbtn[i].Width = 46;
    imgbtn[i].Height = 38;
    //imgbtn[i].ImageActive = @"Image\edit2.png";
    imgbtn[i].Location = new Point(imgbtnX, imgbtnY);
    imgbtn[i].Click += new EventHandler(bunifuImageButton1_Click);


    this.Controls.Add(panel[i]);
    this.Controls.Add(label[i]);
    this.Controls.Add(imgbtn[i]);
    this.Controls.Add(textBox[i]);
    panel[i].Controls.Add(label[i]);
    panel[i].Controls.Add(label1[i]);
    panel[i].Controls.Add(imgbtn[i]);

    gumanaka = textBox[i].Text;
}

Answer 1

You can use DataRowView to get the column of the table when clicked on it..

For an example on a selection changed event of your table you can use this:

DataRowView dr = table_name.SelectedItem as DataRowView;
int id = Convert.ToInt32(dr["appointments_id"]);

Or in your case if its the 5th element:

int id = Convert.ToInt32(dr[4]);

just check the value with

MessageBox.Show(dr.ToString());