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    <p>The way I've done this in the past is to pass a Action delegate to the second form that references a method from the first form.</p> <p>The method you pass in contains the logic that updates your DataGridView.</p> <p>Then in your second form closing event you call this delegate (after checking that it is not null) passing the value from your textbox.</p> <p>Below is some quick prototype code to show how to do this. My method from Form1 just shows a message box, but you can easily change this to update your DataGridView datasource.</p> <pre><code>public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { Form2 form = new Form2(); Action&lt;string&gt; showMessage = ShowMessage; form.ClosingMethod(showMessage); form.Show(); } private void ShowMessage(string message) { MessageBox.Show(message); } } public partial class Form2 : Form { private Action&lt;string&gt; _showMessage; public Form2() { InitializeComponent(); } public void ClosingMethod(Action&lt;string&gt; showMessage) { _showMessage = showMessage; } private void Form2_FormClosing(object sender, FormClosingEventArgs e) { if (_showMessage != null) { _showMessage("hippo"); } } } </code></pre> <p><strong>Edit</strong></p> <p>Just occurred to me that the call to the delegate <code>_showMessage("hippo");</code> is blocking.</p> <p>Your form will not close until the delegate completes - potentially a long time. In my message box example, the form doesn't close until the OK button is clicked.</p> <p>To get around this you can call your delegate asynchronously as shown below:</p> <pre><code>private void Form2_FormClosing(object sender, FormClosingEventArgs e) { if (_showMessage != null) { _showMessage.BeginInvoke("hippo", null, null); } } </code></pre>
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    1. POHow to update the column of datagridview from the text contents of textbox in c# Windows form
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    1. USDavid Hall
    1. USDavid Hall
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    1. COThanks for your reply
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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