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  • What is the "right" way to make a modular ASP.NET page?

    - by Wayne Werner
    Hi, I'm writing an internal program using ASP.NET (Visual Studio 2008). The basic premise is that folks will connect to the page through their web browser, put in some data (which will be validated and sanitized of course), click "submit" and then a query will be run on a database. I told you that story so I can tell you this story - I want to make my program modular for the likelihood that this program will be updated later on, and probably extended. My initial thought is to compile the database handler as a dll and then use its functionality on my page (see my little diagram). But I can't figure out how to hook the dll into my page - My Google-fu has failed which leads me to my questions: 1) Is creating a dll the "right" solution? If so, continue to question 2, if not, what should I be doing? Any resources/tutorial links would be appreciated. 2) How do I attach a dll? Visual Studio tells me I can't Imports from an .aspx page, and I've tried <%@ Import namespace="MyDllName" % and a few other variations, none of which worked. Thanks!

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  • Restore previously serialized JFrame-object, how?

    - by elementz
    Hi all. I have managed to serialize my very basic GUI-object containing a JTextArea and a few buttons to a file 'test.ser'. Now, I would like to completely restore the previously saved state from 'test.ser', but seem to have a misconception of how to properly deserialize an objects state. The class MyFrame creates the JFrame and serializes it. public class MyFrame extends JFrame implements ActionListener { // Fields JTextArea textArea; String title; static MyFrame gui = new MyFrame(); private static final long serialVersionUID = 1125762532137824262L; /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub gui.run(); } // parameterless default contructor public MyFrame() { } // constructor with title public MyFrame(String title) { } // creates Frame and its Layout public void run() { JFrame frame = new JFrame(title); JPanel panel_01 = new JPanel(); JPanel panel_02 = new JPanel(); JTextArea textArea = new JTextArea(20, 22); textArea.setLineWrap(true); JScrollPane scrollPane = new JScrollPane(textArea); scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED); panel_01.add(scrollPane); // Buttons JButton saveButton = new JButton("Save"); saveButton.addActionListener(this); JButton loadButton = new JButton("Load"); loadButton.addActionListener(this); panel_02.add(loadButton); panel_02.add(saveButton); // Layout frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.getContentPane().add(BorderLayout.CENTER, panel_01); frame.getContentPane().add(BorderLayout.SOUTH, panel_02); frame.setSize(300, 400); frame.setVisible(true); } /* * */ public void serialize() { try { ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("test.ser")); oos.writeObject(gui); oos.close(); } catch (Exception e) { // TODO: handle exception e.printStackTrace(); } } public void actionPerformed(ActionEvent ev) { System.out.println("Action received!"); gui.serialize(); } } Here I try to do the deserialization: public class Deserialize { static Deserialize ds; static MyFrame frame; public static void main(String[] args) { try { ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.ser")); frame = (MyFrame) ois.readObject(); ois.close(); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } } Maybe somebody could point me into the direction where my misconception is? Thx in advance!

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  • Is it normal to sometimes take a while to get even basic things working in software development?

    - by user1092719
    This is a little hard to explain because it's a really generic question, but bear with me... I find that when I am doing or recreating basic things from scratch (i.e. without the help of libraries), sometimes it feels as though I'm taking much more time to do the task than is actually needed. I am not new to programming or development & design concepts and have worked extensively with around 9 languages and various platforms and paradigms over 5/6 years. Although I don't yet have any academic qualification for programming and have learned almost exclusively from the Internet, I have been told that the quality of my code is excellent by those with qualifications. So, I don't think I'm a bad programmer because I really love doing it and working with software architecture, but maybe I'm slow? Or is it normal to take sometimes longer than it seems necessary to do basic tasks?

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  • How to learn programming from very basic level to advanced level? [closed]

    - by user1022209
    I know many programming languages ,skills and concepts in very basic, such as PHP, Java, Object-oriented technology. Using PHP, I can build a simple website with CRUD, login function. Using Java, I can make an basic swing csv/plain text editor in which user can switch between 2 different views. In term of object-oriented Technology, I clearly understand what encapsulation, inheritance and Polymorphism are I want to know more about programming. Sometimes I "google" some of the topics I am interested at , the more I see on the internet, the more I feel I am a small potato in the world ( indeed I am ). The codings/concepts are difficult to understand. I lacks confidence right now so I am asking this question :( What is the best way to learn programming to advanced level? Just buy a book and read it page to page? Thanks for any helps

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  • Windows?????(C#?Visual Basic?Active Server Pages?Visual C++)??Oracle Database?????

    - by Yusuke.Yamamoto
    C#?Visual Basic?Active Server Pages?Visual C++???????? Windows ???????????????Oracle Database ????·???????????????? ???? Windows ?????????????Oracle Database ??????????·????·???????????? .NET Oracle Data Provider for .NET Oracle Provider for OLE DB ???? OLE DB.NET Oracle ODBC Driver ???? ODBC.NET Visual Basic/ASP/Access Oracle Objects for OLE(OO4O) Oracle ODBC Driver Oracle Provider for OLE DB OO4O?OLE DB?ODBC?ODP.NET ??Oracle Data Access Component(ODAC) ???????????? OTN Oracle Data Access Components ??????? ???? ????????Oracle DB????????????? Oracle on Windows / .NET ?? ?????????? .NET|???????????

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  • How is WPF Data Binding using Object Data Source in Visual Studio 2010 done?

    - by Rob Perkins
    This is probably mostly a question about how to use the VS 2010 IDE tools in a way the Microsofties didn't specifically intend. But since this is something I immediately tried without success. I have defined a .NET 4.0 WPF Application project with a simple class that looks like this: Public Class Class1 Public Property One As String = "OneString" Public Property Two As String = "TwoString" End Class I then defined it as an "Object Data Source" in VS2010, using the IDE's "Add New Data Source..." feature. This exposes the class members in a GUI element in the IDE as given in this image: Dragging "Class1" from that tool to the surface of "Window1.xaml" in a default "WPF Application" results in the design view looking like this: And generated XAML like this: <Window x:Class="Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="133" Width="170" xmlns:my="clr-namespace:WpfApplication1" mc:Ignorable="d" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" > <Window.Resources> <CollectionViewSource x:Key="Class1ViewSource" d:DesignSource="{d:DesignInstance my:Class1, CreateList=True}" /> </Window.Resources> <Grid DataContext="{StaticResource Class1ViewSource}" HorizontalAlignment="Left" Name="Grid1" VerticalAlignment="Top"> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="Auto" /> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> </Grid.RowDefinitions> <Label Content="One:" Grid.Column="0" Grid.Row="0" HorizontalAlignment="Left" Margin="3" VerticalAlignment="Center" /> <TextBlock Grid.Column="1" Grid.Row="0" Height="23" HorizontalAlignment="Left" Margin="3" Name="OneTextBlock" Text="{Binding Path=One}" VerticalAlignment="Center" /> <Label Content="Two:" Grid.Column="0" Grid.Row="1" HorizontalAlignment="Left" Margin="3" VerticalAlignment="Center" /> <TextBlock Grid.Column="1" Grid.Row="1" Height="23" HorizontalAlignment="Left" Margin="3" Name="TwoTextBlock" Text="{Binding Path=Two}" VerticalAlignment="Center" /> </Grid> Note the data bindings Text="{Binding Path=One}" and Text="{Binding Path=Two}" in the TextBlock elements. Code-behind for Window1.xaml has this in Window_Loaded: Class Window1 Private m_c1 As New Class1 Private Sub Window1_Loaded(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs) Handles Me.Loaded Dim Class1ViewSource As System.Windows.Data.CollectionViewSource = CType(Me.FindResource("Class1ViewSource"), System.Windows.Data.CollectionViewSource) 'Load data by setting the CollectionViewSource.Source property: 'Class1ViewSource.Source = [generic data source] Me.DataContext = m_c1 End Sub End Class Running the application produces this output: The expected result was that "OneString" would appear next to "One" and "TwoString" next to "Two" in the running window. The question is: Why didn't this work? What will work instead? If I put bindings in a DataTemplate, it works. Blend, with its sample data stuff, implied that this should work, but it doesn't. I know I'm missing something pretty fundamental here; what is it?

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  • Tab Controls effecting other Controls.

    - by VBeginner
    Hopefully I've explained myself good enough this time. Can't seem to get a real answer. Trying to make it so when I select certain tabs, certain controls on the left will disappear or reappear. http://img43.imageshack.us/img43/7533/scrnshotg.jpg Also, when "Stats" is selected, I need it to auto-select "Frequency" Ex. On click/focus/select (whatever, nothing seems to work)... ComboBox.Visible = True Thank you.

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  • Winforms checkbox Databinding problem

    - by Savvas Sopiadis
    Hello everybody! In a winforms application (VB, VS2008 SP1) i bound a checkbox field to a SQL Server 2005 BIT field. The databinding itself seems to work, there is this litte problem: user creates a new record and checks the checkbox, then the user decides to create a new record (without having saved the previous, so there are 2 new records to be submitted) and checks also the second. Now the user decides to save these records: the result is that only the second record keeps the checked value, the first one is unchecked! (i tried the same with 5 records: the result is the same, the first 4 records are unchecked and only the last one keeps the checked state). What do i miss?? Thanks in advance

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  • Capturing IR Data using VB.NET

    - by E-Q
    Just found an old IR reciever (Microsoft eHome Infared Transceiver) and i'm trying to write an application that can use data it captures... Any examples or jumping off points for this are appreciated. Thanks!

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  • Excel / VB - How do I loop through each row/column and do formatting based on the value?

    - by Johnny 5
    Here's what I need to do: 1) Loop through every cell in a worksheet 2) Make formatting changes (bold, etc) to fields relative to each field based on the value What I mean is that if a field has a value of "foo", I want to make the field that is (-1, -3) from it bold, etc. I tried to do this with the following script with no luck. Thanks Johnny Pseudo Code to Explain: For Each Cell in WorkSheet If Value of Cell is 'Subtotal' Make the cell 2 cells to the left and 1 cell up from here bold and underlined End If End ForEach The Failed Macro (I don't really know VB at all): Sub Macro2() ' ' ' Dim rnArea As Range Dim rnCell As Range Set rnArea = Range("J1:J2000") For Each rnCell In rnArea With rnCell If Not IsError(rnCell.Value) Then Select Case .Value Case "000 Total" ActiveCell.Offset(-1, -3).Select ActiveCell.Font.Underline = XlUnderlineStyle.xlUnderlineStyleSingleAccounting End Select End If End With Next End Sub

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  • Visual Studio Conversion Suite

    - by KingPop
    I have this as my conversion program for the "Length", how can I do it the simpliest way instead of keeping the if, elseif, else too much, i do not have much experience and trying to improve my programming skills on visual studio 2008. Basically, I get annoyed with the formulas because I don't know if it is right, I use google but doesn't help because i don't know how to get it right when the program converts from type to type. Public Class Form2 Dim Metres As Integer Dim Centimetres As Integer Dim Inches As Integer Dim Feet As Integer Dim Total As Integer Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load ErrorMsg.Hide() End Sub Private Sub btnConvert_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnConvert.Click Metres = 1 Centimetres = 0.01 Inches = 0.0254 Feet = 0.3048 txtTo.Text = 0 If txtFrom.Text <> "" Then If IsNumeric(txtFrom.Text) And IsNumeric(txtTo.Text) Then If cbFrom.Text = "Metres" And cbTo.Text = "Centimetres" Then Total = txtFrom.Text * Metres txtTo.Text = Total ElseIf cbFrom.Text = "Metres" And cbTo.Text = "Inches" Then Total = txtFrom.Text * 100 txtTo.Text = Total ElseIf cbFrom.Text = "Metres" And cbTo.Text = "Feet" Then ElseIf cbFrom.Text = "Centimetres" And cbTo.Text = "Metres" Then ElseIf cbFrom.Text = "Centimetres" And cbTo.Text = "Inches" Then ElseIf cbFrom.Text = "Centimetres" And cbTo.Text = "Feet" Then ElseIf cbFrom.Text = "Inches" And cbTo.Text = "Metres" Then ElseIf cbFrom.Text = "Inches" And cbTo.Text = "Centimetres" Then ElseIf cbFrom.Text = "Inches" And cbTo.Text = "Feet" Then ElseIf cbFrom.Text = "Feet" And cbTo.Text = "Metres" Then ElseIf cbFrom.Text = "Feet" And cbTo.Text = "Centimetres" Then ElseIf cbFrom.Text = "Feet" And cbTo.Text = "Inches" Then End If End If End If End Sub End Class This is the source for what I have done at the moment.

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  • VBA for Access 2003 - DDL help with creating access file: setting the Autonumber data type

    - by Justin
    So I have the below VB that creates an access file in the default workspace, creates a table, create some fields in that table...just need to know the syntax for setting the first data type/field to autonumber...GUID, Counter, etc will not work as in Access SQL ' error handling usually goes here dim ws as workspace dim dbExample as database dim tblMain as TableDef dim fldMain as Field dim idxMain as Index set ws = workspace(0) set dbExample = ws.CreateDatabase('string file path') set tblMain = dbExample.CreateTableDef("tblMain") set fldMain = tblMain.CreateField("ID", 'right here I do not know what to substitute for dbInteger to get the autonumber type to work ) tblMain.Fields.Append fldMain etc to create other fields and indexes so in this line: set fldMain = tblMain.CreateField("ID", dbInteger) i need to replace the dbInteger with something that VB reconizes as the autonumber property. i have tried GUID, Counter, Autonumber, AutoIncrement....unfortunately none of these work anyone know the syntax I am missing here? Thanks, Justin

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  • MS Access 2003 - VBA for altering a table after a "SELECT * INTO tblTemp FROM tblMain" statement

    - by Justin
    Hi. I use functions like the following to make temporary tables out of crosstabs queries. Function SQL_Tester() Dim sql As String If DCount("*", "MSysObjects", "[Name]='tblTemp'") Then DoCmd.DeleteObject acTable, "tblTemp" End If sql = "SELECT * INTO tblTemp from TblMain;" Debug.Print (sql) Set db = CurrentDb db.Execute (sql) End Function I do this so that I can then use more vba to take the temporary table to excel, use some of excel functionality (formulas and such) and then return the values to the original table (tblMain). Simple spot i am getting tripped up is that after the Select INTO statement I need to add a brand new additional column to that temporary table and I do not know how to do this: sql = "Create Table..." is like the only way i know how to do this and of course this doesn't work to well with the above approach because I can't create a table that has already been created after the fact, and I cannot create it before because the SELECT INTO statement approach will return a "table already exists" message. Any help? thanks guys!

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  • Isset and PHP Global Variable

    - by justjoe
    i have doubt on this particular problem : Global variabe initiation. i got this code and has global variable named conditional_random here : function hello_testing() { global $conditional_random; if (isset($conditional_random)) { echo "foo is inside"; } } As it's name, the global variable (conditional_random) can be or not initiate before the hello_testing function been called. So, what happen to my validation via isset() when $conditional_random is not initiate before the hello_testing function ? will it failed to check or it will always be true cause by the 'global' ?

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  • MS Access 2003 - Unbound Form uses INSERT statement to save to table; what about subforms?

    - by Justin
    So I have an unbound form that I use to save data to a table on button click. Is there a way I can have subforms for entry that will allow me to save data to the table within that same button click? Basically I want to add more entry options for the user, and while I know other ways to do it, I am particularly curious about doing it this way (if it can be done). So lets say the 'parent form' is frmMain. And there are two child forms "sub1" and "sub2". Just for example sake lets say on frmMain there are two text boxes: txtTitle & txtAuthor. sub1 and sub2 both have a text Box on them that represent something like prices. The idea is Title & author of a book, and then a price at each store (simplified). So I tried this (because I thought it was worth a shot): Dim db as DAO.database Dim sql as String sql = "INSERT INTO (Title, Author, PriceA, PriceB) VALUES (" if not isnull(me.txtTitle) then sql = sql & """" & me.txtTitle & """," Else sql = sql & " NULL," End If if not IsNull(me.txtAuthor) then sql = sql & " """ & me.txtAuthor & """," else sql = sql & " NULL," end if if not IsNull (forms!sub1.txtPrice) then sql = sql & " """ & forms!sub1.txtPrice & """," else sql = sql & " NULL," end if without finishing the code, i think you may see the GOTCHA i am headed for. I tried this and got an "Access cannot find the form "" ". I think I can pretty much see why on this approach too, because when I click the button that calls the new sub form into the parent form, the values that were just entered are not held/saved as sub1 closes and sub2 opens. I should mention that the idea above is not intended to be a one or the other approach, rather both sub forms used everytime. so this is an example. i want to use this method (if possible) to have about 7 different sub form choices in one form, and be able to save to a table via a SQL statement. I realize that there may be better ways, but I am just wondering if I can get there with this approach out of curiousity. Thanks as always!

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  • Adding dynamic links using NavigateURL on ASP.NET (VB)

    - by AZIRAR
    Hello, I Have this code in my page, and I want that every NavigateUrl display another page like : simple.aspx?id=1, simple.aspx?id=2, ... Where id = c Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Dim c As Integer = 0 While c < 5 Dim Label1 As New Label() Dim ltr As New Literal() Dim link As New HyperLink() link.NavigateUrl = "simple.aspx" link.BackColor = Drawing.Color.Aqua Label1.Text = c.ToString() ltr.Text = "<br/>" PlaceHolder1.Controls.Add(Label1) PlaceHolder1.Controls.Add(link) PlaceHolder1.Controls.Add(ltr) c += 1 End While End Sub Thanks.

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  • ListView not importing data

    - by ct2k7
    Hello, I'm trying to import data into a listview and this is the code I'm using: Private Sub form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim doc As New XmlDocument doc.Load("http://user:[email protected]/1/statuses/mentions.rss") Dim nodes As XmlNodeList = doc.SelectNodes("Statuses/Status") For Each node As XmlNode In nodes Dim text As String = node.SelectSingleNode("text").InnerText Dim time As String = node.SelectSingleNode("created_at").InnerText Dim screen_name As String = node.SelectSingleNode("user/screen_name").InnerText ListView1.Items.Add(New ListViewItem(New String() {screen_name, text, time})) Next End Sub Any ideas what's going wrong here? User and password are correct.

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  • Excel 2003 VBA - Method to duplicate this code that select and colors rows

    - by Justin
    so this is a fragment of a procedure that exports a dataset from access to excel Dim rs As Recordset Dim intMaxCol As Integer Dim intMaxRow As Integer Dim objxls As Excel.Application Dim objWkb As Excel.Workbook Dim objSht As Excel.Worksheet Set rs = CurrentDb.OpenRecordset("qryOutput", dbOpenSnapshot) intMaxCol = rs.Fields.Count If rs.RecordCount > 0 Then rs.MoveLast: rs.MoveFirst intMaxRow = rs.RecordCount Set objxls = New Excel.Application objxls.Visible = True With objxls Set objWkb = .Workbooks.Add Set objSht = objWkb.Worksheets(1) With objSht On Error Resume Next .Range(.Cells(1, 1), .Cells(intMaxRow, intMaxCol)).CopyFromRecordset rs .Name = conSHT_NAME .Cells.WrapText = False .Cells.EntireColumn.AutoFit .Cells.RowHeight = 17 .Cells.Select With Selection.Font .Name = "Calibri" .Size = 10 End With .Rows("1:1").Select With Selection .Insert Shift:=xlDown End With .Rows("1:1").Interior.ColorIndex = 15 .Rows("1:1").RowHeight = 30 .Rows("2:2").Select With Selection.Interior .ColorIndex = 40 .Pattern = xlSolid End With .Rows("4:4").Select With Selection.Interior .ColorIndex = 40 .Pattern = xlSolid End With .Rows("6:6").Select With Selection.Interior .ColorIndex = 40 .Pattern = xlSolid End With .Rows("1:1").Select With Selection.Borders(xlEdgeBottom) .LineStyle = xlContinuous .Weight = xlMedium .ColorIndex = xlAutomatic End With End With End With End If Set objSht = Nothing Set objWkb = Nothing Set objxls = Nothing Set rs = Nothing Set DB = Nothing End Sub see where I am looking at coloring the rows. I wanted to select and fill (with any color) every other row, kinda like some of those access reports. I can do it manually coding each and every row, but two problems: 1) its a pain 2) i don't know what the record count is before hand. How can I make the code more efficient in this respect while incorporating the recordcount to know how many rows to "loop through" EDIT: Another question I have is with the selection methods I am using in the module, is there a better excel syntax instead of these with selections.... .Cells.Select With Selection.Font .Name = "Calibri" .Size = 10 End With is the only way i figure out how to accomplish this piece, but literally every other time I run this code, it fails. It says there is no object and points to the .font ....every other time? is this because the code is poor, or that I am not closing the xls app in the code? if so how do i do that? Thanks as always!

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  • What are the pros and cons using javascript in our form?

    - by justjoe
    I got this code in my submit form <form id="myform" action='hello.php' method='GET' <input type="button" name="newWin" onclick="frmSubmitSameWindows();" <input type="button" name="SameWin" onclick="frmSubmitNewWindows();" <form Then use some js functions in the head; function frmSubmitSameWindows() { form.target = ''; form.submit(); } function frmSubmitNewWindows() { form.target = '_blank'; form.submit(); } What is the pro and cons when we use javascript event function such as frmSubmitSameWin() and frmSubmitNewWin() in our form ? as far as i concern, this is the best solution when we need a way to submit things. Is there other preference ? the better way then the way i got now ?

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  • Excel 2003 - VBA for looping through every cell in a row to provide attributes/formatting

    - by Justin
    say I want to make the first row of the excel ss something like this: .Rows("1:1").Select With Selection.Borders(xlEdgeLeft) .LineStyle = xlContinuous .Weight = xlMedium .ColorIndex = xlAutomatic End With With Selection.Borders(xlEdgeTop) .LineStyle = xlContinuous .Weight = xlMedium .ColorIndex = xlAutomatic End With With Selection.Borders(xlEdgeBottom) .LineStyle = xlContinuous .Weight = xlMedium .ColorIndex = xlAutomatic End With With Selection.Borders(xlEdgeRight) .LineStyle = xlContinuous .Weight = xlMedium .ColorIndex = xlAutomatic End With only I want each individual cells to have the outline, not the entire selection. how can i say for each cell in row 1, do the above idea Thanks!

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