删除图库的图像 [英] Deleting images of an image gallery

问题描述

嗨！我正在使用C＃为网站制作图片库。它应该保存，检索和删除源文件夹中的图像。它已经上传并检索了图像，但我不知道用什么命令来选择然后删除图像。任何人都可以向我展示或指导正确的方向吗？

编辑：图像也显示在面板中。

 <   div  >  
 <   asp：FileUpload     ID   =  FileUp1    runat   =  server < span class =code-attribute>   /  >  <   asp：按钮    ID   =  BtnUP  
                   runat   =   server   文字 < span class =code-keyword> = 上传    onclick   =  BtnUP_Click    /  >  
 <   asp：Panel     ID   =  PnlPic1    runat   = 服务器    BorderColor   = 粉红色    BorderStyle   =  Double  
                   BorderWidth   =  5px   宽度  =  500px >  
 < span class =code-keyword><   / asp：Panel  >  
 <   / div  >  
 

  protected   void  Page_Load（ object  sender，EventArgs e）
 {
 UploadImage（） ; 
} 
 受保护  void  BtnUP_Click（ object  sender，EventArgs e）
 {
  if （FileUp1.HasFile）
 {
 < span class =code-keyword> string  fileName = FileUp1.FileName; 
 FileUp1.PostedFile.SaveAs（Server.MapPath（ 〜/ Data / + fileName ））; 
 
} 
 Response.Redirect（ 〜/ Default.aspx）; 
 
} 
 
  private   void  UploadImage（） 
 {
  foreach （ string  strFileName  in  Directory.GetFiles（Server.MapPath（ 〜/ Data））） 
 {
 ImageButton imgbtn =  new  ImageButton（）; 
 FileInfo finfo =  new  FileInfo（strFileName）; 
 imgbtn.ImageUrl =  〜/ Data / + finfo.Name; 
 imgbtn.Width = Unit.Pixel（ 100 ）; 
 imgbtn.Height = Unit.Pixel（ 100 ）; 
 imgbtn.Style.Add（  padding，  5px）; 
 imgbtn.Click + =  new  ImageClickEventHandler（imgbtn_Click）; 
 PnlPic1.Controls.Add（imgbtn）; 
} 
} 
  void  imgbtn_Click（ object  sender，ImageClickEventArgs e ）
 {
 Response.Redirect（（（imgbtn）sender）.ImageUrl）; 
} 
 

解决方案

这是将图像存储在源文件夹中

< pre lang =cs> if （FileUp1.HasFile）
{
string fileName = FileUp1.FileName;
FileUp1.PostedFile.SaveAs（Server.MapPath（fileName））;

}

这是删除源文件夹中的图像

从daatabase获取文件名，并以deli变量形式存储在delimage中

 如果 （delImage！=  && delImage！=  null ）
 {
 System.IO.File.Delete（Request.PhysicalApplicationPath +   Data / + delImage）; 
} 

Hi! I am making an image gallery for a website using C#. It should save, retrieve and delete the images from a source folder. It already uploads and retrieves the images but I do not know what commands to use for selecting then deleting the image. Could anyone show or direct me to the right direction?
Edit: the images are shown in a panel too.

<div>
    <asp:FileUpload ID="FileUp1" runat="server" /> <asp:Button ID="BtnUP"
        runat="server" Text="Upload" onclick="BtnUP_Click" />
    <asp:Panel ID="PnlPic1" runat="server" BorderColor="Pink" BorderStyle="Double"
        BorderWidth="5px" Width="500px">
    </asp:Panel>
</div>

protected void Page_Load(object sender, EventArgs e)
{
    UploadImage();
}
protected void BtnUP_Click(object sender, EventArgs e)
{
    if (FileUp1.HasFile)
    {
        string fileName = FileUp1.FileName;
        FileUp1.PostedFile.SaveAs(Server.MapPath("~/Data/" + fileName));

    }
    Response.Redirect("~/Default.aspx");

}

private void UploadImage()
{
    foreach (string strFileName in Directory.GetFiles(Server.MapPath("~/Data")))
    {
        ImageButton imgbtn = new ImageButton();
        FileInfo finfo = new FileInfo(strFileName);
        imgbtn.ImageUrl = "~/Data/" + finfo.Name;
        imgbtn.Width = Unit.Pixel(100);
        imgbtn.Height = Unit.Pixel(100);
        imgbtn.Style.Add("padding", "5px");
        imgbtn.Click += new ImageClickEventHandler(imgbtn_Click);
        PnlPic1.Controls.Add(imgbtn);
    }
}
void imgbtn_Click(object sender, ImageClickEventArgs e)
{
    Response.Redirect(((imgbtn)sender).ImageUrl);
}

解决方案

this is to store image in source folder

if (FileUp1.HasFile)
        {
            string fileName = FileUp1.FileName;
            FileUp1.PostedFile.SaveAs(Server.MapPath( fileName));

        }

this is to delete the image in source folder
get the file name from daatabase and store in delimage as variable

if (delImage != "" && delImage != null)
                               {
                                   System.IO.File.Delete(Request.PhysicalApplicationPath + "Data/" + delImage);
                               }

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