C#

// Create a temporary DataSet for the merge
DataSet temp = new DataSet("temp");
			
// Copy one of the tables...
DataTable tab1Copy = tab1.Copy();

// and add it to the temp DataSet
temp.Tables.Add(tab1Copy);
  
// Rename it so the tables will merge
temp.Tables["tab1"].TableName = "tab2";
    
// Call the Merge method, passing the other table
temp.Merge(ds.Tables["tab2"]);
  
// Remove the table from both DataSets
temp.Tables.Remove("tab2");
ds.Tables.Remove("tab2");
  
// Add the merged copy back to the original DataSet
ds.Tables.Add(tab1Copy);
  
// Rows are now in "tab2"
ds.Tables["tab1"].Rows.Clear();
  
// Restore reference
tab2 = ds.Tables["tab2"];
  
// Clean up
temp = null;
tab1Copy = null;

<br />
private void button1_Click(object sender, System.EventArgs e)<br />
{<br />
	// Download the data to a buffer.<br />
	WebClient client = new WebClient();<br />
	// Upload some form post values.<br />
	NameValueCollection form = new NameValueCollection();        <br />
	form.Add("email", textBox_email.Text.ToString());        <br />
	Byte[] responseData = client.UploadValues("http://www.stratejiparki.com/name.php");        <br />
<br />
	HttpWebRequest webRequest = (HttpWebRequest) WebRequest.Create("http://www.stratejiparki.com/name.php");<br />
	// ask the web request for a webResponse encapsulating<br />
	// that page<br />
	HttpWebResponse webResponse = (HttpWebResponse) webRequest.GetResponse( );<br />
	// get the streamReader from the response<br />
	StreamReader streamReader = new StreamReader(webResponse.GetResponseStream( ), Encoding.ASCII);<br />
	string outputString;<br />
	outputString = streamReader.ReadToEnd( );<br />
	streamReader.Close( );<br />
	label1.Text = outputString;<br />
}<br />

public const int EM_GETLINECOUNT = 0xBA;

[System.Runtime.InteropServices.DllImport("user32.dll")]
public static extern Int32 SendMessage (Int32 hWnd, Int32 wMsg , Int32 wParam , Int32 lParam );

public static int GetTotalLines(TextBox tb)
{
	int totalLines = 0;
	totalLines = SendMessage(tb.Handle.ToInt32(), EM_GETLINECOUNT, 0, 0) + 1;
	return totalLines;
}