C# : LoadFile Missin

I tried to copy this code to display pdf in c# , but axAcroPDFLib.axAcroPDF does not contain Loadfile....... error comes !

Is there any possible solution for this?

private void button1_Click(object sender, EventArgs e)

{

// Create object of Open file dialog class

{

OpenFileDialog dlg = new OpenFileDialog();

// set file filter of dialog

dlg.Filter = "pdf files (*.pdf) |*.pdf;";

dlg.ShowDialog();

if (dlg.FileName!= null)

{

// use the LoadFile(ByVal fileName As String) function for open the pdf in control

axAcroPDF1.LoadFile(dlg.FileName);

}