Send data from a GridView on a Form to ComboBox on another Form

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Send data from a GridView on a Form to ComboBox on another Form

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#1 by (2 votes)

1

I'm trying to send the data from a gridview in a second Form to a combobox in form master but I have not been successful. I would like to know if there is a way to do this without being sent as a parameter, since I will call the form master at other times without needing this value. Here is the try code:

private void dataGridView1_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
{
    Form1 f = new Form1();
    f.cbComputador.SelectedIndex = Convert.ToInt32(dataGridView1.CurrentRow.Cells[1].Value);
    this.Close();
}

I need the value to immediately appear on the% computer "%" when the user clicks twice.

c# winforms datagridview

asked by anonymous 07.06.2017 / 00:40

1 answer

Doubt about changing data in arrays in java Is it possible to perform an Update in this way?

score 2 · Accepted Answer

Make a way in which this parameter is not mandatory for form to work, or create a public property in the second form that will receive this value. >

Example:

Optional parameter

// construtor
public Form1(int? valorOpcional)
{
    if(valorOpcional == null)
        // Nenhum valor foi passado
    else
        cbComputador.SelectedIndex = (int)valorOpcional;
}

With property

public class Form1
{
    public int? ValorDoCombo { get; set; }

    public Form1() 
    { 
        if(ValorDoCombo != null)
            cbComputador.SelectedIndex = (int)ValorDoCombo;

    }
}

And the use would be something like

private void dataGridView1_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
{
    Form1 form = new Form1();
    form.ValorDoCombo = Convert.ToInt32(dataGridView1.CurrentRow.Cells[1].Value);
    this.Close();
}