using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.IO; using System.Drawing; using System.Drawing.Imaging; using System.Drawing.Drawing2D; namespace ImageEx { public partial class UploadCrop : System.Web.UI.Page { String path = HttpContext.Current.Request.PhysicalApplicationPath + "images\\"; protected void Page_Load(object sender, EventArgs e) { } protected void btnUpload_Click(object sender, EventArgs e) { Boolean FileOK = false; Boolean FileSaved = false; { Session["WorkingImage"] = Upload.FileName; String FileExtension = Path.GetExtension(Session["WorkingImage"].ToString()).ToLower(); String[] allowedExtensions = { ".png", ".jpeg", ".jpg", ".gif" }; for (int i = 0; i < allowedExtensions.Length; i++) { if (FileExtension == allowedExtensions[i]) { FileOK = true; } } } if (FileOK) { try { Upload.PostedFile.SaveAs(path + Session["WorkingImage"]); FileSaved = true; } catch (Exception ex) { LblError.Text = "File could not be uploaded." + ex.Message.ToString(); LblError.Visible = true; FileSaved = false; } } else { LblError.Text = "Cannot accept files of this type."; LblError.Visible = true; } if (FileSaved) { pnlUpload.Visible = false; pnlCrop.Visible = true; imgCrop.ImageUrl = "images/" + Session["WorkingImage"].ToString(); } } } }
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