using System; 
  using System.Collections.Generic; 
  using System.Drawing; 
  using System.Windows.Forms; 
  using Spire.PdfViewer.Forms; 
  using System.IO; 
  namespace pdfviewer 
  { 
   
  	public partial class MainForm : Form 
  	{ 
  		PdfViewer pdfViewer1 = new PdfViewer(); 
   
  		IEnumerable<string> yol; 
  		 
   
  		public MainForm() 
  		{ 
  			 
  			InitializeComponent(); 
  			 
  			 
  			this.SuspendLayout(); 
  			 
  			 
  			pdfViewer1.IsToolBarVisible = true; 
  			pdfViewer1.Location = new Point(0, 50); 
  		 
  			pdfViewer1.Size = new Size(500, 325); 
  			pdfViewer1.TabIndex = 1; 
  			 
  			 
  			 
  			AutoScaleDimensions = new SizeF(6F, 12F); 
  			AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; 
  			Controls.Add(pdfViewer1); 
  			Name = "Form1"; 
  			Text = "pdf okuyucu"; 
  			 
  			ResumeLayout(false); 
  			 
  		 
  		} 
  		void MainFormLoad(object sender, EventArgs e) 
  		{ 
  			//pdf klasörü 
  			yol = Directory.EnumerateFiles(@"D:\Karşıdan Yüklenenler", "*.pdf", SearchOption.TopDirectoryOnly); 
  			foreach (var dosya in yol) 
  				comboBox1.Items.Add(Path.GetFileName( dosya)); 
  		} 
  		void ComboBox1SelectionChangeCommitted(object sender, EventArgs e) 
  		{ 
  			pdfViewer1.LoadFromFile(@"D:\Karşıdan Yüklenenler"+"\\"+comboBox1.SelectedItem); 
  		} 
  		 
  	} 
  }