|
//upload image
public void OnUpload(Object sender, EventArgs e)
{
int len = Upload.PostedFile.ContentLength;
byte[] pic = new byte[len];
Upload.PostedFile.InputStream.Read (pic, 0, len);
SqlConnection connection = new
SqlConnection (@"server=INDIA INDIA;database=iSense;uid=sa;pwd=india");
try
{
connection.Open ();
SqlCommand cmd = new SqlCommand ("insert into Image "
+ "(Picture, Comment) values (@pic, @text)", connection);
cmd.Parameters.Add ("@pic", pic);
cmd.Parameters.Add ("@text", Comment.Text);
cmd.ExecuteNonQuery ();
}
finally
{
connection.Close ();
}
}
//load image
private void Page_Load(object sender, System.EventArgs e)
{
MemoryStream stream = new MemoryStream ();
SqlConnection connection = new
SqlConnection (@"server=INDIA INDIA;database=iSense;uid=sa;pwd=india");
try
{
connection.Open ();
SqlCommand command = new
SqlCommand ("select Picture from Image where id"], connection);
byte[] image = (byte[]) command.ExecuteScalar ();
stream.Write (image, 0, image.Length);
Bitmap bitmap = new Bitmap (stream);
Response.ContentType = "image/gif";
bitmap.Save (Response.OutputStream, ImageFormat.Gif);
}
catch
{
string strblandImagePath = Server.MapPath("");
strblandImagePath += "NoImg.gif";
FileStream FileBlandImagestream = File.OpenRead(strblandImagePath);
Bitmap bitImage = new Bitmap(FileBlandImagestream);
Response.ContentType = "image/gif";
bitImage.Save(Response.OutputStream, ImageFormat.Gif);
}
finally
{
connection.Close ();
stream.Close ();
}
}
modified 27-May-14 5:11am.
|
|
|
|
|
Hi all,
I am sending id to the another page but right now it is in readable format how to encrypt.
Thanks,
Amit Patel
|
|
|
|
|
This was enormously helpful code to me. I searched forever to find something this straightforward. You saved me many hours.
I wanted to add something another reader might find useful. I needed to add URL encoding so that the encrypted string would be ready for transport over HTTP. To do this (in vb.net) I add a reference to System.Web and use the HTTPUtility.URLEncode class to transform it into a string
Imports System.Web
strEncoded = HttpUtility.UrlEncode(strEncrypted)
So, the steps are:
1. Store a string of query parameters
2. Encrypt it using code above
3. Encode it with URLEncode
4. Send it through as query string (one string of apparently-random characters)
5. Receive it on the other side as one big query string
6. use HTTP.Utility.URLDecode to get it back to a regular string
6. Decrypt it using the code above
7. Write a routine to parse it out because you can't use Request.QueryString("AB") for this purpose. You have to come up with your own such as request_equerystring("AB"). Some code for this was written up in the following article on the subject that talks about the process but I could not get their encrypt and decrypt to work out-of-the-box in vb.net.
In my application, the data I am passing can only be obtained using a windows.form because it uses local data that is not brower-accessible. There are plenty of examples of ASP to ASP querystring passing out there where you can use server.transfer. But, this is the only simple-to-follow reference I could find to calling up a browser with encrypted query strings from vb.net (that worked on first try).
Encrypting the Information Passed From the Query String
|
|
|
|
|
Why not just provide the link to original content instead of copying and pasting it here?
50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong...!!
|
|
|
|
|
its in my computer buddy in my txt file if you want thn i'll send it to you........and i am using it in my app....
|
|
|
|
|
bhavnvyas wrote: if you want thn i'll send it to you
No thanks.
Exactly same thing is right here[^]. As soon as I read "So, the steps are" it struck that I have seen it somewhere. Hence the reply.
50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong...!!
|
|
|
|
|
thank you very much.......
|
|
|
|
|
|
Encrypt with any encryption, Encode in base64 string and then pass to the querystring using UrlEncode.
Remember base64 is essential. 
|
|
|
|
|
If you are just trying to make it not so obvious to the end user the ID that you are passing, then how about passing the data in a session variable ? It is not totally secure, but real easy to implement. 
I don't believe in "over engineering" a solution. Keep things simple.
|
|
|
|
|
Hi，you can try
string.ToBase64String() and string.FromBase64String
modified 27-May-14 5:11am.
|
|
|
|
|
hii m using file upload control and am trying to upload image to my local folder(homeimg).
i have written code:
if (FileUpload1.HasFile)
{
FileUpload1.SaveAs("~\\homeimg\\" + FileUpload1.FileName);
Label1.Text = "File Uploaded: " + FileUpload1.FileName ;
}
else
{
Label1.Text = "No File Uploaded.";
}
it gives error and ask for root directory.as soon as give the path along with root directory the file gets uploaded.
Tell me how can i upload file to my local folder without using root directory.
thanks
|
|
|
|
|
Use Server.MapPath ex.
FileUpload1.SaveAs(Server.MapPath("~\\homeimg\\" + FileUpload1.FileName))
|
|
|
|
|
If you are using asp fileupload control then use this code..
tmpfile = Path.GetFileName(fbrwse.PostedFile.FileName);
iSubPath = Server.MapPath("..\\Documents\\");
if (!Directory.Exists(iSubPath))
{
Directory.CreateDirectory(iSubPath);
}
iSubPath1 = Server.MapPath("..\\Documents\\")+ "\\" + tmpfile;
fbrwse.PostedFile.SaveAs(iSubPath1);
|
|
|
|
|
thnks both logic works...
|
|
|
|
|
Hi,
Is there some way by which a web application design view should remain the same even if the resolution of the screen is changed?
Please reply
Thanks
Shankbond
|
|
|
|
|
use control width in percentage..
<td style="width: 15%">
<asp:Label ID="lblunat="server" Width="100%" text="Document Status: "></asp:Label>
|
|
|
|
|
treeview_SelectedNodeChanged event is not firing for the click of same node second time
|
|
|
|
|
That's Correct. Because you are not changing the node selection, you are just clicking it again.
Try treeview_TreeNodeExpanded and treeview_TreeNodeCollapsed instead.
|
|
|
|
|
Hi all,
i created web page in ASP.NET. and trying to run it in local host. am using IE 8.0 browser . am unable to see my Menuitems instead i found only blank area. can any one pls tell me....
|
|
|
|
|
Did you checked with IE Compatible Mode or any other browser ? Are all CSS are placed properly ?
Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
|
|
|
|
|
Yes Abhijit i checked in IE 6.0 an Mozilla its working fine. But not in IE 8.0 pls tell me
|
|
|
|
|
There is browser competibility button jus next to refresh button in ie 8 just click it and change your browser view..
|
|
|
|
|
If you r using table in your's application. Then check the vacant cells delete them. Actually Firefox not focus over blank cells on ur page but IE do so.
|
|
|
|
|
Refer this Link To know solution
http://forums.asp.net/t/1431373.aspx[^]
Sundeep Ganiga
When the only tool you have is a hammer, everything looks like a nail.
Come Forth Yourself to Click "Good Answer" for any expected solution.
Let us Support our C Project Programmers who provide solutions here.
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
