Unmixing Classic ASP with NET

Question

jcdisciple 0 Newbie Poster

12 Years Ago

I have an application that I modified from http://offbeatmammal.com/upload_resize.aspx

Can someone show me how to convert the vbscript UPDATE Query at the end to a DOT NET?????

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<%@ Page Trace="False" Language="vb" aspcompat="true" debug="true" validateRequest="false"%> 
<%@ Import Namespace=System.Drawing %>
<%@ Import Namespace=System.Drawing.Imaging %>
<%@ Import Namespace=System %>
<%@ Import Namespace=System.Web %>
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
<meta http-equiv="CACHE-CONTROL" content="NO-CACHE"/>

<meta content="no-cache" http-equiv="pragma" />

<link href="admin.css" rel="stylesheet" type="text/css" />
</head>

	<div id="adminnavbar">
		<!--#include file="_adminNav.asp"-->
	</div>
	
	<h1 style="text-align: center; margin: 0px">Change/Edit Category Image</h1>			
		

<form enctype="multipart/form-data" method="post" runat="server">
<input name="cID" type="hidden" value="<%=Request.Querystring("cat")%>" />
<table style="width: 500px; margin: 10px" cellspacing="15">
<tr><td style="white-space: nowrap">Select the file to upload:</td><td style="text-align: right"><input type="file" name="upload_file1" size="45"></td></tr>
<tr><td>Picture Story</td><td><textarea name="picCaption" rows="2" style="width: 350px"></textarea>&nbsp;</td></tr>
<tr><td colspan=2>Max upload size <%=upload_max_size%>Kb, gif/jpg/png only</td></tr>
<tr><td colspan=2 style="text-align: right"><input type="submit" value="Upload"></td></tr>
</table>
</form>

<SCRIPT LANGUAGE="VBScript" runat="server">
const Lx = 200	' max width for thumbnails
const Ly = 200	' max height for thumbnails
const Ox = 600	' max width for zoom
const Oy = 600	' max height for zoom
const upload_dir = "../Gallery/"	' directory to upload file
const upload_original = ""	' filename to save original as (suffix added by script)
const upload_thumb = "tn_"	' filename to save thumbnail as (suffix added by script)
const upload_max_size = 3800	' max size of the upload (KB) note: this doesn't override any server upload limits
dim fileExt	' used to store the file extension (saves finding it multiple times)
dim newWidth, newHeight as integer ' new width/height for the thumbnail
dim L2	' temp variable used when calculating new size
dim O2
dim fileFld as HTTPPostedFile	' used to grab the file upload from the form
Dim originalimg As System.Drawing.Image	' used to hold the original image
dim msg	' display results
dim upload_ok as boolean	' did the upload work ?
</script>
<%
'randomize() ' used to help the cache-busting on the preview images
upload_ok = false

if lcase(Request.ServerVariables("REQUEST_METHOD"))="post" then

	Dim i As Integer
	For i = 0 To Request.Files.Count - 1 

	fileFld = request.files(i)

	'fileFld = request.files(0)	' get the first file uploaded from the form (note:- you can use this to itterate through more than one image)
	if fileFld.ContentLength > upload_max_size * 1024 then
		msg = "Sorry, the image must be less than " & upload_max_size & "Kb"
	else
		try
			originalImg = System.Drawing.Image.FromStream(fileFld.InputStream)
			' work out the width/height for the thumbnail. Preserve aspect ratio and honour max width/height
			' Note: if the original is smaller than the thumbnail size it will be scaled up
			If (originalImg.Width/Lx) > (originalImg.Width/Ly) Then
				L2 = originalImg.Width
				newWidth = Lx
				newHeight = originalImg.Height * (Lx / L2)
				if newHeight > Ly then
					newWidth = newWidth * (Ly / newHeight)
					newHeight = Ly
				end if
			Else
				L2 = originalImg.Height
				newHeight = Ly
				newWidth = originalImg.Width * (Ly / L2)
				if newWidth > Lx then
					newHeight = newHeight * (Lx / newWidth)
					newWidth = Lx
				end if
			End If

            Dim thumb As New Bitmap(newWidth, newHeight)

            'Create a graphics object           
            Dim gr_dest As Graphics = Graphics.FromImage(thumb)

			' just in case it's a transparent GIF force the bg to white 
			dim sb = new SolidBrush(System.Drawing.Color.White)
			gr_dest.FillRectangle(sb, 0, 0, thumb.Width, thumb.Height)

            'Re-draw the image to the specified height and width
			gr_dest.DrawImage(originalImg, 0, 0, thumb.Width, thumb.Height)

			try
				'fileExt = System.IO.Path.GetExtension(fileFld.FileName).ToLower()
				'originalImg.save(Server.MapPath(upload_dir & upload_original & fileFld.FileName), originalImg.rawformat)
				thumb.save(Server.MapPath(upload_dir & upload_thumb & fileFld.FileName), originalImg.rawformat)
				'msg = "Uploaded " & fileFld.FileName & " to " & Server.MapPath(upload_dir & upload_original & fileExt)
				upload_ok = true
			catch
				msg = "Sorry, there was a problem saving the thumbnail image."
			end try
			' Housekeeping for the generated thumbnail
			if not thumb is nothing then
				thumb.Dispose()
				thumb = nothing
			end if

			If (originalImg.Width/Ox) > (originalImg.Width/Oy) Then
				O2 = originalImg.Width
				newWidth = Ox
				newHeight = originalImg.Height * (Ox / O2)
				if newHeight > Oy then
					newWidth = newWidth * (Oy / newHeight)
					newHeight = Oy
				end if
			Else
				O2 = originalImg.Height
				newHeight = Oy
				newWidth = originalImg.Width * (Oy / O2)
				if newWidth > Ox then
					newHeight = newHeight * (Ox / newWidth)
					newWidth = Ox
				end if
			End If

            Dim origimg As New Bitmap(newWidth, newHeight)

            'Create a graphics object           
            Dim gr_dest2 As Graphics = Graphics.FromImage(origimg)

			' just in case it's a transparent GIF force the bg to white 
			dim sb2 = new SolidBrush(System.Drawing.Color.White)
			gr_dest2.FillRectangle(sb2, 0, 0, origimg.Width, origimg.Height)

            'Re-draw the image to the specified height and width
			gr_dest2.DrawImage(originalImg, 0, 0, origimg.Width, origimg.Height)

			try
				'fileExt = System.IO.Path.GetExtension(fileFld.FileName).ToLower()
				'originalImg.save(Server.MapPath(upload_dir & upload_original & fileFld.FileName), originalImg.rawformat)
				origimg.save(Server.MapPath(upload_dir & fileFld.FileName), originalImg.rawformat)
				'msg = "Uploaded " & fileFld.FileName & " to " & Server.MapPath(upload_dir & upload_original & fileExt)
				upload_ok = true
			catch
				msg = "Sorry, there was a problem saving the Large image."
			end try
			' Housekeeping for the generated thumbnail
			if not origimg is nothing then
				origimg.Dispose()
				origimg = nothing
			end if

		catch
			msg = "Sorry, that was not an image we could process."
		end try
	end if

	' House Keeping !
	if not originalImg is nothing then
		originalImg.Dispose()
		originalImg = nothing
	end if
%>
<%
if upload_ok then
Dim picCaption
picCaption=Request.Form("picCaption")

%>
<table>
<tr>
<td valign=top><img src="<%=upload_dir & upload_thumb & fileFld.FileName%>"></td>
<td valign=top style="text-align: left"><%=picCaption%></td>
</tr>
<tr>
<td valign=top colspan="2"><img src="<%=upload_dir & fileFld.FileName%>"></td>
</tr>
</table>
<!--THIS IS MY Classic ASP CODE I NEED TO CONVERT TO DOT NET -->
<%
'INSERT FILE INFO into Database
'Start first insert
Dim sSQL,oConn,picPublish,picSortOrder,cID

Dim picURL AS String
Dim picThumbURL AS String

picURL=upload_dir & fileFld.FileName
picThumbURL=upload_dir & upload_thumb & fileFld.FileName

cID=Request.Form("cID")
%>
<!--#include file="dbconn.asp"-->
<%

sSQL="UPDATE Categories SET catImageURL ='" & picURL & "',catThumbURL ='" & picThumbURL & "',catImageCaption ='" & picCaption & "' WHERE (catID='" & cID & "')"


oConn=Server.CreateObject("ADODB.Connection")
oConn.Open(sDSN)
oConn.Execute(sSQL)

oConn.Close
oConn=Nothing
%>
<meta http-equiv="refresh" content="0;URL=CategoryEditor.asp?cat=<%=cID%>"/>


<%
else
	response.write(msg)
end if
%>

<%		Next

end if

%>

asp.net

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hericles 289 Master Poster Featured Poster · Answer 1 · 2011-11-11T18:32:54+00:00

Create a connection object with a valid connection string, and command object. Link the two and set your sql statement. open the connection, execute the query on the command object and close the connection. Like this:

Dim conn As New MysqlConnection('valid connection string')
Dim cmd As New MySqlCommand()
cmd.connection = conn
cmd.commandText = 'your sql statement'
cmd.commandType = commandType.Text
conn.Open()
cmd.ExecuteNonQuery()   or executeScalar etc
conn.Close()