How to search a value from multiple XML file Using Windows Application

I have multiple XML file in one folder from which I want to search one value. After Searching the value I want to move those file in which that searched value found into other folder.

private void btnSearch_Click(object sender, EventArgs e)
{
        // Read XML one by one
        // Move the all the file in which search value match
        //folderBrowserDialog.ShowDialog();
} 

Someone please help me.