C#

<br />
public bool clicked;<br />

<br />
            if (clicked)<br />
            {<br />
                //do whatever you want to do when button1 on form1 is clicked<br />
            }<br />

<br />
        private void button1_Click(object sender, EventArgs e)<br />
        {<br />
            Form2 frm = new Form2();<br />
            frm.clicked = true;<br />
            frm.Show();<br />
        }<br />

XmlDocument xmldoc = new XmlDocument();
FileStream fs = new FileStream(Xmlfilepath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
xmldoc.Load(fs);

XmlNodeList xmlnode = xmldoc.GetElementsByTagName("ABC");

//replace ABC with yours tagname

for (int a = 0; a < xmlnode.Count; a++)
{
 if (xmlnode[a].Attributes[0].Value == "requirednode") // match your attributes
  {
     //codes
  }
}