Question

i currently have a form which i dynamically created a 2D array of textboxes, buttons etc. i just found out my other parts of the program cannot access to the textboxes i created? is there a way i can do it?

my codes goes something like:

    public Form1()
    {
        int column = 4;

        System.Windows.Forms.TextBox[,] textbox = new System.Windows.Forms.TextBox[column, row];

        for (int i = 0; i < column; i++)
        {
            for (int j = 0; j < row; j++)
            {
                textbox[i, j] = new System.Windows.Forms.TextBox();
                textbox[i, j].Size = new Size(80, 20);
                textbox[i, j].Name = "textbox_" + i + "_" + j;
                textbox[i, j].Location = new System.Drawing.Point((i * 80) + 20, (j * 20) + 30);
                textbox[i, j].Visible = true;
                Controls.Add(textbox[i, j]);

            }
        }

        /////fill the textboxes with data//////
    }

i cannot access the textbox outside the method, how can i do it? can you provide some working coded? i am still relatively new to c#, thank you very much

Answer 1

You could add a class level property just like

public class Form1
{
    public System.Windows.Forms.TextBox[,] textbox { get; set; }

    public Form1()
    {
        int column = 4;

        textbox = new System.Windows.Forms.TextBox[column, row];

        for (int i = 0; i < column; i++)
        {
            for (int j = 0; j < row; j++)
            {
                textbox[i, j] = new System.Windows.Forms.TextBox();
                textbox[i, j].Size = new Size(80, 20);
                textbox[i, j].Name = "textbox_" + i + "_" + j;
                textbox[i, j].Location = new System.Drawing.Point((i * 80) + 20, (j * 20) + 30);
                textbox[i, j].Visible = true;
                Controls.Add(textbox[i, j]);

            }
        }
    }
}

Then you can simply do like

Form1 myForm = GetMyForm();
System.Windows.Forms.TextBox[,] theTextboxArray = myForm.textbox;