Image should be show instead of file names in datagridview in C# windows forms

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C#

Windows

application

I have to show image from my project folder( from solution explorer) instead of pdf file names in columns where the file exists

What I have tried:

Image imgCalibration = (Image)e.RowIndex.FindControl("imgCalibration");
                  DataGridViewImageColumn img = new DataGridViewImageColumn();
              if (!string.IsNullOrEmpty(Calibaration))
              {
                  string[] Cal = Calibaration.Split('.');
                  if (Cal[1].ToString() == "pdf" || Cal[1].ToString() == "PDF")
                      //  Bitmap img = new Bitmap("~/Images/pdf.png");
                      // System.Drawing.Image imgCalibration = Image.FromFile("~/Images/pdf.png");
                      //img.Image = imgCalibration;
                      gvProduct.Rows[e.RowIndex].Cells["CalibratCertificate"].Value = Image.FromFile("~/images/pdf.png");
                  //imgCalibration.ImageUrl = "~/Images/pdf.png";
                  else if (Cal[1].ToString() == "docx" || Cal[1].ToString() == "DOCX" || Cal[1].ToString() == "doc" || Cal[1].ToString() == "DOC")
                      gvProduct.Rows[e.RowIndex].Cells["CalibratCertificate"].Value = Image.FromFile("~/images/word.png");
                  //imgCalibration.ImageUrl = "~/Images/word.png";
                  else if (Cal[1].ToString() == "xls" || Cal[1].ToString() == "XLS")
                      gvProduct.Rows[e.RowIndex].Cells["CalibratCertificate"].Value = Image.FromFile("~/images/Excel.png");
                  // imgCalibration.ImageUrl = "~/Images/Excel.png";
                  //hlCertificate.Visible = true;
              }