Visual Basic

Re: How can i retrieve image to pictureBox ?

2-Nov-12 0:57

I'd recommend creating a "new application" to try implement this technique; that way you won't be bothered with code that has little to do with this particular problem.

You already have the bytes; you can put those in a memorystream[^] and load your image from that stream[^].

Bastard Programmer from Hell Suspicious | :suss:

if you can't read my code, try converting it here[^]

SZLMCL6-Nov-12 23:20

SZLMCL

6-Nov-12 23:20

hy
This function converts byte array to image:

Public Shared Function ByteArrayToImage(ByVal ByteArr() As Byte) As Object
                Dim ImageStream As System.IO.MemoryStream

                Try
                    If ByteArr.GetUpperBound(0) > 0 Then
                        ImageStream = New System.IO.MemoryStream(ByteArr)
                        Return Image.FromStream(ImageStream)
                    Else
                        Return Nothing
                    End If
                Catch ex As Exception
                    Return Nothing
                End Try
            End Function

and this convert back:

Public Shared Function ImageToByteArray(ByVal NewImage As Image) As Object
               Dim ImageStream As System.IO.MemoryStream
               Dim ByteArr() As Byte

               Try
                   ReDim ByteArr(0)
                   If NewImage IsNot Nothing Then
                       ImageStream = New System.IO.MemoryStream
                       NewImage.Save(ImageStream, Imaging.ImageFormat.Jpeg)
                       ReDim ByteArr(CInt(ImageStream.Length - 1))
                       ImageStream.Position = 0
                       ImageStream.Read(ByteArr, 0, CInt(ImageStream.Length))
                   End If
                   Return ByteArr
               Catch ex As Exception
                   Return Nothing
               End Try
           End Function

+You need DBNull check when the column allow nulls.

How can i save image in my N-tier application?

heinhtataung31-Oct-12 20:20

heinhtataung

31-Oct-12 20:20

'In DA_Company'

Function Company_Save(ByVal M_Model_DA As Model.M_Company) As String
       Try
           connection_enable()
           cmd = New SqlCommand()
           cmd.CommandText = "SP_HR_Company_Insert"
           cmd.Connection = con
           cmd.CommandType = CommandType.StoredProcedure
           cmd.Parameters.Add("@Company_Logo", SqlDbType.Image).Value = M_Model_DA.Company_Logo
           err_message = cmd.ExecuteNonQuery()
       Catch ex As Exception
           err_message = ex.ToString()
       End Try
       Return err_message
   End Function

'In BL_Company'

Function Company_Save(ByVal M_Company_BL As Model.M_Company) As String
       Try
           DA_Company = New DataAccess.DA_Company()
           error_message = DA_Company.Company_Save(M_Company_BL)
       Catch ex As Exception
           error_message = ex.ToString()
       End Try
       Return error_message
   End Function

'In M_Company'

Public Property Company_Logo() As Byte
        Get
            Return Me.CompanyLogo
        End Get
        Set(ByVal value As Byte)
            Me.CompanyLogo = value
        End Set
    End Property

'In Frm_Company'

  Private Sub Company_Save()
        Try
            BL_Company = New BusinessLogic.BL_Company()
            M_Comapny = New Model.M_Company()
            M_Comapny.Company_Logo = Convert.ToByte(browseCompanyLogo.Value)
            error_message = BL_Company.Company_Save(M_Comapny)
 
            If error_message > 0 Then
                MessageBox.Show("Complete Save")
                Company_GridView_FillData()
            End If
        Catch ex As Exception
            MessageBox.Show(ex.Message.ToString())
        End Try

 


 Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
        
Company_Save()
 
    End Sub

But It Shows Input Stream was not in a correct format . Why ? please !

Re: How can i save image in my N-tier application?

Eddy Vluggen1-Nov-12 3:05

1-Nov-12 3:05

heinhtataung wrote:
Why ?

'cause an exception occured. Can you point out the line *where* it occurs?

I'd guess it happens on this line;

M_Comapny.Company_Logo = Convert.ToByte(browseCompanyLogo.Value)

Bastard Programmer from Hell Suspicious | :suss:

if you can't read my code, try converting it here[^]

AI program

Casey Edison31-Oct-12 5:04

31-Oct-12 5:04

Hi I've recently started programming and for a project i need to learn how to create my own AI program and i need to understand how it is done I need to know everything from opening VB Confused | :confused:

i can do basic thing in VB but i have no idea were to even start with this can someone help please from the very start or at least help a little Smile | :)

Thankyou anyone who helps Smile | :)

Simon_Whale31-Oct-12 5:08

Simon_Whale

31-Oct-12 5:08

I would start at MSDN Development for beginners[^]

Lobster Thermidor aux crevettes with a Mornay sauce, served in a Provençale manner with shallots and aubergines, garnished with truffle pate, brandy and a fried egg on top and Spam - Monty Python Spam Sketch

Casey Edison31-Oct-12 5:13

31-Oct-12 5:13

ill try this thankyou Smile | :)

Richard MacCutchan31-Oct-12 7:59

31-Oct-12 7:59

Casey Edison wrote:
how to create my own AI program

Even the Japanese struggled with that.

One of these days I'm going to think of a really clever signature.

Casey Edison31-Oct-12 12:26

31-Oct-12 12:26

I don't want to make a very complex one just one that can make replys and activate event from speech, not to complex ofcourse i know there is AI programs you can download like this like helpful AL like that basically.

Richard MacCutchan31-Oct-12 23:18

31-Oct-12 23:18

OK, so what exactly are you asking for here?

One of these days I'm going to think of a really clever signature.

Casey Edison1-Nov-12 0:42

1-Nov-12 0:42

I want to be able to make a basic program that i can run. I want it to be able to use speech recognition but i dont mind using text, with some sort of speech from the AI. like siri basically.....
i understand this might sound like facepalm. I know Siri was created by proffesionals over years under the CALO project. I obviously dont want it as complex as Siri.
i uderstand for actually siri the framework is python and java i dont mind changeing programming languages aslong as i can create this myself, the language doesnt matter.

Richard MacCutchan1-Nov-12 2:06

1-Nov-12 2:06

All these things are possible, but it would be quite a challenge for someone who is still learning programming. The first thing you need to do is study your language of choice and get comfortable with building simple programs.

One of these days I'm going to think of a really clever signature.

Casey Edison1-Nov-12 8:14

1-Nov-12 8:14

i can do basic things i understand variables can make a simple replica of notepad, and number calculator but a basic one and just basic programs really im also tryna learn how to make a media player at the moment, but its just getting off the ground with this is hard.

Richard MacCutchan1-Nov-12 8:19

1-Nov-12 8:19

Casey Edison wrote:
just getting off the ground with this is hard.

No one said it would be easy; programming requires considerable thought and effort. Don't assume that you can turn out a complex application after just a few days. The only way to produce great, or even good, work is practice, practice, practice.

One of these days I'm going to think of a really clever signature.

Casey Edison1-Nov-12 12:40

1-Nov-12 12:40

i know this but nothing wrong with asking for help Smile | :)

then i can practice

Richard MacCutchan1-Nov-12 14:55

1-Nov-12 14:55

Casey Edison wrote:
nothing wrong with asking for help

Help with what? All we know is that you want to write some sort of AI program in Visual Basic. Unless you explain exactly what you are having difficulty with we cannot suggest much more than: "try some Google searches for AI".

One of these days I'm going to think of a really clever signature.

Casey Edison1-Nov-12 8:15

1-Nov-12 8:15

Eddy Vluggen2-Nov-12 1:08

How to INSERT multiple rows of data to sql table?

2-Nov-12 1:08

Casey Edison wrote:
i can do basic things i understand variables can make a simple replica of notepad, and number calculator but a basic one and just basic programs really im also tryna learn how to make a media player at the moment, but its just getting off the ground with this is hard. Do you know were i could ind out how an AI works how the code links etc.

An AI is a few levels complexer than a notepad. Google for "Eliza", there must be some chatbot-code around that you could build on.

Bastard Programmer from Hell Suspicious | :suss:

if you can't read my code, try converting it here[^]

zaimah31-Oct-12 1:28

zaimah

31-Oct-12 1:28

Hi, anyone can give me idea on how to do this? I'm used to gridview for updating multiple data to sql table. But how can i insert to sql table a list of data from a table/form? Its a situation where a lecturer wants to register a list of student for a subject.

Re: How to INSERT multiple rows of data to sql table?

Eddy Vluggen31-Oct-12 2:11

Re: How to INSERT multiple rows of data to sql table?

31-Oct-12 2:11

One way would be to issue INSERT commands, using Sql. Another way would be using the TableAdapters. Both approaches are described here[^].

Bastard Programmer from Hell Suspicious | :suss:

if you can't read my code, try converting it here[^]

zaimah31-Oct-12 2:28

zaimah

31-Oct-12 2:28

sorry.. still cant understand how it works.
i have a html table where there are 3 columns studentID,studentName, courseName. There ada 10 rows of textbox for each column. Can u explain how can i use the one that u gave me? I'm not using gridview because my data doesn't exist in the sql table yet. Hope my explanation is clear because my english is not that good.. TQ for the reply... been waiting every minutes for reply Smile | :)

Re: How to INSERT multiple rows of data to sql table?

Eddy Vluggen31-Oct-12 2:48