How can I access DataGridView from alll classes in program

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I have a DateGridView1 instantiated in Form1 (by Visual C#).
I want it to be global . . . I want to access its cells from every class (I made a new one) in app.

I thought it would be accessible from all classes if I changed the generated code from private to public . . .

public System.Windows.Forms.DataGridView DataGridView1;

& also added public to the generated Form1 class as follows . . .

public partial class Form1 : Form

To just show my problem . . I created a class using same namespace . . .

public class V
{
string Client = DataGridView1[0, 0].Value.ToString();
}

2 errors . .

Error 2 The name 'DataGridView1' does not exist in the current context

Error 1 The name 'Client' does not exist in the current context

How can I access DataGridView1 from ALL classes? How do I make it Global?

Posted 1-Feb-14 6:55am

JOHNNYDEMICHAEL

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Karthik_Mahalingam · Answer 1 · 2014-02-01T07:31:00

In order to make is as Global access, you need to change the access modifier of the DataGridView1 as Public or Internal

To access the DataGridView1 in other classes you need to create an instance for the DataGridView1 Form (Form1)

C#

public class V
{
  public void Somemethod()
{
Form1 obj = new Form1();
string Client = obj.DataGridView1.Rows[0].Cells[0].Value.ToString();
}
}

Note: before accessing the cells of the DGV, make sure the data is binded to the DGV.
Lot of validation to be done..

Baxter P · Answer 2 · 2014-02-01T07:24:00

Solution 1

Select the DataGridView and open the properties window. Then set the 'modifiers' property to 'Public'.

That should do it.

If you try to access the DataGridView from anywhere in the application you may have some problems though.

Posted 1-Feb-14 7:24am

Baxter P

JOHNNYDEMICHAEL · Answer 3 · 2014-02-19T15:08:00

Solution 3

Thanks, but I could not get any of the suggestions to work. I substantiated it in the class outside of any method.

Posted 19-Feb-14 15:08pm

JOHNNYDEMICHAEL

Krunal Rohit · Answer 4 · 2014-02-19T15:21:00

Let's say you're having GridView in Deafault.aspx and you want to access it on Page1.aspx, Page2.aspx and Page3.aspx.

So what you can do is, make a public property for it and with the help of page instance you can call that Grid.
For example,

Default.aspx

C#

public GridView MyGrid
{ 
    get { return GridView1; } 
    set { GridView1 = value; }
}

Page_Load(...)
{
    /*
    ...
    */
}

Page1.aspx / Page2.aspx / page3.aspx

C#

Page_Load()
{
    Default df = new Default();
    GridView2 = df.MyGrid;
}

It's just my blind assumption that it's gonna work. If it is not, let us know :)

-KR

How can I access DataGridView from alll classes in program

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