How to Re-Bind Data in Datagridview from Second Form

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I have a datagridview on my Main Form.

I want to re-bind the data in the datagridview from the second form. When I am clicking on the back button on the second form, it must re-bind the data on the Main Form.

//Main Form

Name of the Main Form is:frmMain
Datagridview name is: dtgAllIngdetTerminals (Modifiers: Public)

I have written the following code:

//Second Form

//Methid to bind the data
 public void ShowAllTerminalDetails()
        {
            frmMain formMain = new frmMain();
            DataTable dt = new DataTable();
            dt = clsIngadmin.listallingdetails();  //reading a short procedure from a class
            formMain.dtgAllIngdetTerminals.DataSource = dt;
        }

//Back button on my second form that is going back to the main Form

C#

private void btnBack_Click(object sender, EventArgs e)
       {
           ShowAllTerminalDetails(); 
           this.Close(); 

       }

If I re-bind the data from the Main form, it works. All the data are displayed in the datagridview. If I am trying to re-bind the data from the second form, nothing is displayed in the datagridview. What am I doing wrong?

Posted 1-Mar-12 0:06am

JacoBosch

Updated 5-Mar-12 1:03am

v5

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JacoBosch 1-Mar-12 6:31am

If I just do it on the Main Form it looks as follows:

//Main Form

public void ShowAllTerminalDetails()
{
DataTable dt = new DataTable();
dt = clsIngadmin.listallingdetails();
dtgAllIngdetTerminals.DataSource = dt;
}

private void tlStripRefresh_Click(object sender, EventArgs e)
{
ShowAllTerminalDetails();
}

2 solutions

Solution 1

call your binding method on page load if u want to see the data when page is load first time and also write the same method on refresh button also

Posted 4-Mar-12 23:51pm

khan mohd faizan

Comments

JacoBosch 5-Mar-12 6:02am

The method is written on the Page Load, and on the Refresh button. The Refresh on Form1 is working great, but when I want to "refresh" the data from Form2 but I close Form2 no data is displayed inside the datagridview.

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JacoBosch · Accepted Answer · 2012-03-13T21:04:00

What I did to make it work:

I made a Refresh button on a toolstrip. I bind the datatable in the Refresh button on the onclick event.

C#

private void tlStripRefresh_Click(object sender, EventArgs e)
       {
           DataTable dt = new DataTable();
            dt = clsIngadmin.listallingdetails();
            dtgAllIngdetTerminals.DataSource = dt;

       }

Then I called the refresh event(tlStripRefresh) of the refresh button where I want to use it.

tlStripRefresh_Click(tlStripRefresh, EventArgs.Empty);