CODEWITHSUNDEEP
c#winforms.net-4.0
sam
sam

Reputation: 2606

Double click row in datagridview and get value of specific cell and pass it to another form

I just want to know if this below scenario is correct

I am trying to the following 1- from MyDataGridView1 in Form1 on duoble click on MyDataGridView1 row I am getting value of specific column and pass it to FORM2

2- assign that value to Textbox on Form2

below event to get ti ID from datagridview

private void MyDataGridView1_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
    {
       vID = MyDataGridView1.Rows[e.RowIndex].Cells[1].Value.ToString();

       this.Close();
       Form2 NewForm = new Form2();
       NewForm.Show();
    }

then save the value to 

public static string vID ;

no Form2

Textboxid.Text = F0103.vID ;

at line below I am trying to lunch the leave event of textbox but it is not working is there any idea to lunch leave event 

BTN_Refresh.Focus();

Upvotes: 1

Views: 13371

Answers (2)

David Bentley
David Bentley

Reputation: 864

A complete answer:

Form1:

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();

        List<Stuff> stuff = new List<Stuff>();
        stuff.Add(new Stuff() { Foo = "Foo1", Bar = "Bar1", Data = "Data1" });
        stuff.Add(new Stuff() { Foo = "Foo2", Bar = "Bar2", Data = "Data2" });

        var bindingList = new BindingList<Stuff>(stuff);
        var source = new BindingSource(bindingList, null);
        dataGridView1.DataSource = source;
    }

    private void dataGridView1_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
    {
        string arg = dataGridView1.Rows[e.RowIndex].Cells[1].Value.ToString();

        Form2 form2 = new Form2(arg);
        form2.Show();

        this.Hide();
    }
}

public class Stuff
{
    public string Foo { get; set; }
    public string Bar { get; set; }
    public string Data { get; set; }
}

Form2:

public partial class Form2 : Form
{
    public Form2(string arg)
    {
        InitializeComponent();

        label1.Text = arg;
    }
}

One thing about winforms(and why I use WPF instead) is it overly complicates this stuff. From my testing, this.Close() closed down the entire app and I had to use this.Hide() instead.

Also, it is good to get in the habit of passing arguments instead of setting global variables. Almost anything in C# can be passed as an argument in someway and it makes for better and cleaner code.

Upvotes: 4

gunnerone
gunnerone

Reputation: 3572

If I'm understanding your question correctly. You can pass the string to your Form2 constructor.

private void MyDataGridView1_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
{
  vID = MyDataGridView1.Rows[e.RowIndex].Cells[1].Value.ToString();

  Form2 NewForm = new Form2(vID);

  this.Close();

  NewForm.Show();
}

Then in the constructor, set the TextBox text to this string.

public class Form2
{
  public Form2(string vid)
  {
    InitializeComponent();

    Textboxid.Text = vid;
  }
}

Upvotes: 0

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