ASP.NET

29-Jul-14 9:18

medodesign essentially wrote:
Write all my code for me.

You've been here 7.5 years, and you still haven't worked out that that's NOT how this site works? WTF | :WTF:

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

How to Upload Directory

Samarjeet Singh@india29-Jul-14 4:51

Samarjeet Singh@india

29-Jul-14 4:51

Hi,

I want to upload the directory on the server.

The file upload control is uploading the file not directory.

is there a way by which I can upload the directory ?

Thanks

jkirkerx29-Jul-14 7:55

jkirkerx

29-Jul-14 7:55

That's why it's called file upload, it uploads 1 file.

Uploadify will upload multiple files at the same time sort of.

Here's some seeds to get started with, just food for thought for planning. I've never written one so I don't have any experience at it.
Using HTML5 to do mass uploads

http://stackoverflow.com/questions/3590058/does-html5-allow-drag-drop-upload-of-folders-or-a-folder-tree[^]

http://dior.ics.muni.cz/~makub/massupload.html[^]

ZurdoDev29-Jul-14 8:09

ZurdoDev

29-Jul-14 8:09

I have a dumb question. Are you wanting to upload all the files in the directory or somehow upload just the directory?

There are only 10 types of people in the world, those who understand binary and those who don't.

Kornfeld Eliyahu Peter29-Jul-14 10:16

Kornfeld Eliyahu Peter

29-Jul-14 10:16

I think dumb question should be asked in QA Laugh | :laugh:

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is. (V)

ZurdoDev29-Jul-14 10:20

ZurdoDev

29-Jul-14 10:20

True. That is the place for it. Smile | :)

Heck, I could copy my question and paste into a new question in QA without any of the context here and it would still make more sense than most questions that come through there.

OMG | :OMG:

There are only 10 types of people in the world, those who understand binary and those who don't.

meeram3929-Jul-14 18:31

meeram39

29-Jul-14 18:31

Why do you want to upload a directory instead of file? What is its significance???

If you want to upload the directory itself, it can be done using jQuery plugins. See this link

jkirkerx30-Jul-14 10:05

jkirkerx

30-Jul-14 10:05

I think it's a limitation of the browsers capabilities.

Keep in mind that HTML elements are an agreed upon standard in which the browser will interpret the element and attempt to render it in the browsers window to the best of it's ability.

I did some reading, and Google's Chrome, the latest version supports selecting the whole folder.

Keep in mind that you can program the window that opens to select a file to or for,
File Extension Types as a filter
Single or Multiple Selection
so if the browser has the capability, you should be able to toggle that feature.

Other programs like uploadify use a combination of JavaScript and a HTTP Request to upload files, and completely bypass the file upload element. An example would be CK-Editor, in which you have to purchase or write a HTTP Handler to upload the file and write it to the server drive.

Examples:
Upload files using an HttpHandler[^]

Nathan Minier1-Aug-14 4:04

Nathan Minier

1-Aug-14 4:04

If you don't mind postbacks:
1. You'll need to build a custom Javascript window that will enumerate a selected directory, most likely recursively so that you can get the sub-directories. This will replace the file upload window, so plan to code some events and hooks.
2. You'll need some metadata to send with the files to identify where they all belong.

You can also do this with AJAX but there are other considerations.

Here's a tutorial for your controller:
http://www.prideparrot.com/blog/archive/2012/8/uploading_and_returning_files#uploading_multiple_files[^]

Random 8 digit number

byka28-Jul-14 4:55

28-Jul-14 4:55

How can I generate a randon 8 digit number? I have this but its not working

Dim random = New Random(System.DateTime.Now.Millisecond)
Dim randomNumber As Integer = random.[Next](1, 500000)
 Dim randomNumberNew As Integer = random.[Next](1, 500000)

Richard Deeming28-Jul-14 5:26

28-Jul-14 5:26

So you want an 8-digit number, but you've asked for a number between 1 and (500000 - 1) (a 6-digit number)?

Try asking for a number with 8 digits:

VB.NET

Dim random = New Random(System.DateTime.Now.Millisecond)
Dim randomNumber As Integer = random.[Next](10000000, 100000000)
Dim randomNumberNew As Integer = random.[Next](10000000, 100000000)

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

byka28-Jul-14 5:51

28-Jul-14 5:51

I think because my process is running to fast this line is not working:
Dim random = New Random(System.DateTime.Now.Millisecond)

Richard Deeming28-Jul-14 6:12

28-Jul-14 6:12

So call the parameterless constructor of the Random class. That uses the Environment.TickCount as the seed. Since there are 10000 ticks in a millisecond, you'll be less likely to get repeated numbers.

If that's still not random enough, or you're using the random numbers for any security-related purposes, then use the System.Security.Cryptography.RandomNumberGenerator class[^] instead.

VB.NET

Public Shared Function NextRandomNumber(ByVal minValue As Integer, ByVal maxValue As Integer) As Integer
    Using random As RandomNumberGenerator = RandomNumberGenerator.Create()
        Dim b(3) As Byte
        random.GetBytes(b)
        
        Dim d As Double = CDbl(BitConverter.ToUInt32(b, 0)) / UInt32.MaxValue
        Return CInt(Math.Floor(d * maxValue - minValue) + minValue)
    End Using
End Function

See this[^] for details, including my changes in the comments.

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

byka28-Jul-14 6:20

28-Jul-14 6:20

so this function will return 8 digit number with no decimals?

Richard Deeming28-Jul-14 6:22

28-Jul-14 6:22

Correct.

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

byka29-Jul-14 1:51

29-Jul-14 1:51

Great. Thank you a lot for help

byka29-Jul-14 1:53

29-Jul-14 1:53

Last question. What if I don't want to specify min and max values?

Richard Deeming29-Jul-14 2:14

29-Jul-14 2:14

If you don't specify min and max values, you'll get any 32-bit number returned, which will probably not be 8 digits.

If you always want the number to be 8 digits, and you don't want to pass the parameters, then you can hard-code the min and max values within the function.

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

byka29-Jul-14 2:31

29-Jul-14 2:31

so if I hardcoded like this:
NextRandomNumber(1, 10000000)
it should take care right?

Richard Deeming29-Jul-14 5:56

How to create ASP.NET database driven dynamic website, Database Connection, Tutorial

29-Jul-14 5:56

That would give you a number anywhere from 1 to 7 digits long. If you want the number to always be 8 digits, the min value should be 10000000, and the max should be 100000000.

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Biplob Singha Shee28-Jul-14 2:01

Biplob Singha Shee

28-Jul-14 2:01

Hi all,

I am very new in ASP.NET. Actually I code in vb.net and trying to make a database driven dynamic website.

I use to connect database through an XML file where I put the server, database name, user id and password. Then from a class I call these to connect the database. In this class I put the connectionstring which always read the data from the XML file like...

If (IO.File.Exists("db.xml")) Then
            Dim DbXmlReader As XmlReader = New XmlTextReader("db.xml")
            While DbXmlReader.Read
                Dim DbNodeType = DbXmlReader.NodeType
                If (DbNodeType = XmlNodeType.Element) Then
                    If (DbXmlReader.Name = "server") Then
                        srv = DbXmlReader.ReadInnerXml.ToString
                    End If

the above code is just a snippet.

Now my questions are...

1. Is the above method possible in ASP.NET to connect with a database ?
2. If not, then how should I connect with the database ?
3. Lastly, is there any good tutorial for beginners that how to create a database driven dynamic website from scratch in ASP.NET?

The tutorial should have all like add a template, adding css, database connection etc.

Thanks in advance.

Re: How to create ASP.NET database driven dynamic website, Database Connection, Tutorial

Richard Deeming28-Jul-14 2:50

Re: How to create ASP.NET database driven dynamic website, Database Connection, Tutorial

28-Jul-14 2:50

Although it would be possible to read the connection details from a custom XML file, why not simply use the built-in support for configuring connection strings[^]?

web.config:

XML

<configuration>
    <connectionStrings>
        <add
            name="MyConnectionString"
            providerName="System.Data.SqlClient"
            connectionString="server=SERVER-NAME;database=DB-NAME;uid=USER-NAME;pwd=PASSWORD"
        />
        <!--
        For more examples of connection strings, see:
        http://www.connectionstrings.com/
        -->
    </connectionStrings>
</configuration>

Code:

VB.NET

Imports System.Configuration
...
Dim connectionStringSettings As ConnectionStringSettings = ConfigurationManager.ConnectionStrings("MyConnectionString")
Using connection As New SqlConnection(connectionStringSettings.ConnectionString)
    ...
End Using

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Biplob Singha Shee28-Jul-14 3:20

Biplob Singha Shee

28-Jul-14 3:20

Thanks Richard for your answer. Is there any good tutorial for beginners like me ?

Re: How to create ASP.NET database driven dynamic website, Database Connection, Tutorial

Richard Deeming28-Jul-14 3:46