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  • SQLConnection.Open(); throwing exception

    - by flavour404
    Hi, Updating an old piece of software but in order to maintain backward compatibility I need to connect to a .mdb (access) database. I am using the following connection but keep getting an exception, why? I have validated the path, database existence etc. and that is all correct. string Server = "localhost"; string Database = drive + "\\btc2\\state\\states.mdb"; string Username = ""; string Password = "Lhotse"; string ConnectionString = "Data Source = " + Server + ";" + "Initial Catalog = " + Database + ";" + "User Id = '';" + "Password = " + Password + ";"; SqlConnection SQLConnection = new SqlConnection(); try { SQLConnection.ConnectionString = ConnectionString; SQLConnection.Open(); } catch (Exception Ex) { // Try to close the connection if (SQLConnection != null) SQLConnection.Dispose(); // //can't connect // // Stop here return false; }

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  • Project setup for an ADO.NET/WCF DataService

    - by Slauma
    I'd like to implement a ADO.NET/WCF DataService and I am wondering what's the best way to setup a project in VS2008 SP1 for this purpose. Currently I have an ASP.NET web application project (not of "WebSite" project type). The data access layer is an Entity model (EF version 1) with SQL Server database. I have the Entity Model in a separate DLL project and the web application project references to this assembly for all data accesses. The ADO.NET/WCF DataService needs to communicate with the Entity model/database as well. It has to be hosted on the same web server (IIS 7.5) together with the web application. Since the DataService is not directly related to that specific web application (though it will provide and modify data from/in the same database the web application uses as well) my basic idea was to separate the DataService in its own new project (which also references the Entity Model DLL). Now I have seen that there is no project type "ADO.NET/WCF DataService" in VS2008 SP1. It seems only possible to add a DataService as an element to other existing projects, for instance Web Application projects. Why isn't there a separate DataService project type? Does this mean now that I have to add the DataService as an element to my Web Application project? Or shall I create a new Web Application project and add a DataService to it? (I could delete the pregenerated default.aspx since I do not need any web pages in this project.) What's the best way? Thank you for suggestions in advance!

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  • Compare _TCHAR* argv[] entries from command line to _T("paramString")

    - by David
    I know how to get the parameters from the command line. I also know how to print them out. The problem I'm having is how to compare the parameters from the argv[] array to a string. The progam runs but never returns a result where the parameter string is equal to the one I'm looking for. Thanks in advance. // Testing.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include <iostream> using namespace std; int _tmain(int argc, _TCHAR* argv[]) { for (int i = 0; i < argc; i = i + 1) { if (argv[i] == _T("find")) { wcout << "found at position " << i << endl; } else { wcout << "not found at " << i << endl; } } return 0; }

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  • PLKs and Web Service Software Factory

    - by Nix
    We found a bug in Web Service Software Factory a description can be found here. There has been no updates on it so we decided to download the code and fix it ourself. Very simple bug and we patched it with maybe 3 lines of code. However* we have now tried to repackage it and use it and are finding that this is seemingly an impossible process. Can someone please explain to me the process of PLKs? I have read all about them but still don't understand what is really required to distribute a VS package. I was able to get it to load and run using a PLK obtained from here, but i am assuming that you have to be a partner to get a functional PLK that will be recognized on other peoples systems? Every time i try and install this on a different computer I get a "Package Load Failure". Is the reason I am getting errors because I am not using a partner key? Is there any other way around this? For instance is there any way we can have an "internal" VS package that we can distribute? Edit Files I had to change to get it to work. First run devenv PostInstall.proj Generate your plks and replace ##Package PLK## (.resx files) --Just note that package version is not the class name but is "Web Service Software Factory: Modeling Edition" -- And you need to remove the new lines from the key ProductDefinitionRegistryFragment.wxi line 1252(update version to whatever version you used in plk) Uncomment all // [VSShell::ProvideLoadKey("Standard", Constant in .tt files.

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  • How to update primary key

    - by slave016
    Here is my problem: I have 2 tables: 1.WORKER, with coloumns |ID|OTHER_STAF| , where ID is primary key, and 2.FIRM, with coloumns |FPK|ID|SOMETHING_ELSE| , where combination FPK and ID make primary key, and also ID is a foreign key referenced to WORKER.ID (not null, and must have same value as in WORKER). I want to make stored procedure UPDATE_ID_WORKER, where I would like to change the value of specific ID in WORKER, and also in all instances of specific value of ID in FIRM. stored procedure: ........ @id .. ???? ........ Thanks for every advice...

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  • CIL and JVM Little endian to big endian in c# and java

    - by Haythem
    Hello, I am using on the client C# where I am converting double values to byte array. I am using java on the server and I am using writeDouble and readDouble to convert double values to byte arrays. The problem is the double values from java at the end are not the double values at the begin giving to c# writeDouble in Java Converts the double argument to a long using the doubleToLongBits method , and then writes that long value to the underlying output stream as an 8-byte quantity, high byte first. DoubleToLongBits Returns a representation of the specified floating-point value according to the IEEE 754 floating-point "double format" bit layout. The Program on the server is waiting of 64-102-112-0-0-0-0-0 from C# to convert it to 1700.0 but he si becoming 0000014415464 from c# after c# converted 1700.0 this is my code in c#: class User { double workingStatus; public void persist() { byte[] dataByte; using (MemoryStream ms = new MemoryStream()) { using (BinaryWriter bw = new BinaryWriter(ms)) { bw.Write(workingStatus); bw.Flush(); bw.Close(); } dataByte = ms.ToArray(); for (int j = 0; j < dataByte.Length; j++) { Console.Write(dataByte[j]); } } public double WorkingStatus { get { return workingStatus; } set { workingStatus = value; } } } class Test { static void Main() { User user = new User(); user.WorkingStatus = 1700.0; user.persist(); } thank you for the help.

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  • Data Mining - Predictive Analysis

    - by IMHO
    We are looking at acquiring Data Mining software to primarily run predictive analysis processes. How does SQL Server Data Mining solution compares to other solutions like SPSS from IBM? Since SQL Server DM is included in SQL Server Enterprise license - what would be the justification to spend extra couple 100K to buy separate software just to do DM?

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  • stored procedure vs UDF

    - by TheObserver
    I have a select statement and in a couple of the fields, I want to check if an entry for the record exists in another table and if it does, output 1 value and if it doesn't, provide another value. What would be the best way to do it? When would you use a stored procedure and when would you use a UDF?

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  • Cannot resolve IHttpHandler

    - by baron
    For some reason when I am trying to create a class which implements IHttpHandler I cannot resolve IHttpHandler. Statements like: using System.Web; are not helping either. This is a class library project, I am following example here: http://www.15seconds.com/issue/020417.htm What am I doing wrong?

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  • Get logged in user details in sharepoint c# webpart

    - by MalphasWats
    Hi, After much wrangling I have a development environment for building sharepoint webparts in c#. I'm completely new to SP development, so I haven't quite found the various API docs, so I'm hoping someone can help get me started. Eventually, I want to write a simple web part that allows its user to display different content depending on who the current user is. What I'd like to do first though is just build a dead simple webpart that will simply print out the current user's details - username, full name and any permissions groups that they have. Thanks

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  • SQL Server schema comparison - leaves behind obsolete files on synchronization

    - by b0x0rz
    Directly related to http://stackoverflow.com/questions/2768489/visual-studio-2010-database-project-is-there-a-visual-way/2772205#2772205 I have a problem synchronizing between database project and a database in Visual Studio. Usually I synchronize FROM database TO database project (using the Visual Studio data scheme compare new schema comparison). The synchronization works, BUT when I for example corrected the spelling of a key in the database and synchronized it - the file with the WRONG spelling of a key remains (albeit is commented out inside). the new one is correctly added. This file happens to be in: [project name]/Scheme Objects/Schemas/dbo/Tables/Keys But for sure there are others elsewhere. how to automatically remove such obsolete files when synchronizing? thnx

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  • Visual Studio - Attach Source Code to Reference

    - by Joe
    My C# project references a third-party DLL for which I have the source code. Can I somehow tell Visual Studio the location of that source code, so that, for example, when I press F12 to open the definition of a method in the DLL, it will open up the source code, instead of opening up the "Class [from metadata]" stub code?

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  • Change Data Capture or Change Tracking - Same as Traditional Audit Trail Table?

    - by HardCode
    Before I delve into the abyss of Microsoft documentation any deeper, I'd like to know if someone experienced with Change Data Capture and Change Tracking know if one or both of these can be used to replace the traditional ... "Audit trail table copy of the 'real table' (all of the fields of the original table, plus date/time, user ID, and DML action field) inserted into by Triggers" ... setup for a database table audit trail, where the trigger populates the audit trail table (which is all manual work). The MSDN overview documentation explains at a high level what Change Data Capture and Change Tracking are, but it isn't clear enough to me, and doesn't state outright, that these tools can be used to replace the traditional audit trail tables we've made so often. Can someone with any experience using Change Data Capture and Change Tracking save me a lot of time, or confirm that I am spending time looking at the right tool? The critical part of our audit trail is capturing all changes to a table's fields (on INSERT, UPDATE, DELETE), when it happened, and who did it. These changes are commonly provided to an end user chronologically via an audit trail report. Which is another question ... Change Data Capture or Change Tracking is the solution, I'd assume that this data can be queried just like data from a normal table? EDIT: I need a permanent audit trail, irregardless of time. I see that Change Data Capture has to do with the transaction logs, so this sounds finite to me.

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  • Trying to Add Insert Row to Footer in GridView ASP.net

    - by chillconsulting
    I'm trying to give the user the ability to create a new record from the footer row and my event handler doesn't seem to be working... or maybe I'm going at this all wrong. The insert button that I enabled in the gridview doesn't work either...checkout the site at http://aisched.engr.oregonstate.edu/admin/courses.aspx Here is my code in front and behind: public partial class admin_courses : System.Web.UI.Page { public Table table; ListDictionary listValues = new ListDictionary(); TextBox textBox1 = new TextBox(); //Name TextBox textBox2 = new TextBox(); //CR TextBox textBox3 = new TextBox(); //CourseNum TextBox textBox4 = new TextBox(); //Dept protected void Page_Init() { } protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { if (e.Row.RowType != DataControlRowType.Footer) return; //Escape if not footer textBox1.ID = "name"; textBox1.Width = 250; textBox2.ID = "credit_hours"; textBox2.Width = 25; textBox3.ID = "dept"; textBox3.Width = 30; textBox4.ID = "class"; textBox4.Width = 25; LinkButton add = new LinkButton(); add.ID = "add"; add.Text = "Add course"; add.CommandName = "add"; add.Click += new EventHandler(add_Click); e.Row.Cells[1].Controls.Add(textBox1); e.Row.Cells[2].Controls.Add(textBox2); e.Row.Cells[3].Controls.Add(textBox3); e.Row.Cells[4].Controls.Add(textBox4); e.Row.Cells[5].Controls.Add(add); } public void add_Click(object sender, EventArgs e) { Response.Write("you Clicked Add Course!"); if (textBox1.Text != null && textBox2.Text != null && textBox3.Text != null && textBox4.Text != null) { listValues.Add("name", textBox1.Text); listValues.Add("credit_hours", textBox2.Text); listValues.Add("dept", textBox4.Text); //For Visual listValues.Add("class", textBox3.Text); } LinqDataSource1.Insert(listValues); Response.Redirect("~/admin/courses.aspx"); } } <%@ Page Language="C#" MasterPageFile="~/admin.master" AutoEventWireup="true" CodeFile="courses.aspx.cs" Inherits="admin_courses" Title="OSU Aisched | Admin - Courses" %> <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %> <asp:Content ID="Content1" ContentPlaceHolderID="admin_nav_links" Runat="Server"> <ul id="main"> <li><a href="overview.aspx">Overview</a></li> <li><a href="users.aspx">Users</a></li> <li class="current_page_item"><a href="courses.aspx">Courses</a></li> <li><a href="programs.aspx">Programs</a></li> <li><a href="sections.aspx">Sections</a></li> <li><a href="import.aspx">Import</a></li> <li><a href="logs.aspx">Logs</a></li> </ul> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server"> <form id="Form1" runat="server"> <asp:ScriptManager ID="ScriptManager1" runat="server"> </asp:ScriptManager> <asp:LinqDataSource ID="LinqDataSource1" runat="server" ContextTypeName="DataClassesDataContext" EnableDelete="True" EnableInsert="True" EnableUpdate="True" TableName="courses"> </asp:LinqDataSource> <h1><a>Courses</a></h1> <asp:UpdateProgress ID="UpdateProgress1" runat="server"> </asp:UpdateProgress> <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="course_id" DataSourceID="LinqDataSource1" BackColor="#DEBA84" BorderColor="#DEBA84" BorderStyle="None" BorderWidth="1px" CellPadding="3" CellSpacing="2" AllowSorting="True" ShowFooter="True" OnRowDataBound="GridView1_RowDataBound" > <RowStyle BackColor="#FFF7E7" ForeColor="#8C4510" /> <Columns> <asp:BoundField DataField="course_id" HeaderText="ID" ReadOnly="True" SortExpression="course_id" /> <asp:BoundField DataField="name" HeaderText="Name" SortExpression="name" /> <asp:BoundField DataField="credit_hours" HeaderText="CR" SortExpression="credit_hours" /> <asp:BoundField DataField="dept" HeaderText="Dept" SortExpression="dept" /> <asp:BoundField DataField="class" HeaderText="#" SortExpression="class" /> <asp:CommandField DeleteImageUrl="~/media/delete.png" ShowDeleteButton="True" ShowEditButton="True" ShowInsertButton="True"/> </Columns> <FooterStyle BackColor="#F7DFB5" ForeColor="#8C4510" /> <PagerStyle ForeColor="#8C4510" HorizontalAlign="Center" /> <SelectedRowStyle BackColor="#738A9C" Font-Bold="True" ForeColor="White" /> <HeaderStyle BackColor="#A55129" Font-Bold="True" ForeColor="White" /> </asp:GridView> <br /> <asp:HyperLink ID="HyperLink1" runat="server" Target="~/admin/addCourse.aspx" Enabled="true"NavigateUrl="~/admin/addCourse.aspx" Text="Add New course"></asp:HyperLink> <br /> </form> </asp:Content>

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  • Refactor instance declaration from try block to above try block in a method

    - by dotnetdev
    Hi, Often I find myself coming across code like this: try { StreamWriter strw = new StreamWriter(); } However, there is no reference to the object outside the scope of the try block. How could I refactor (extract to field in Visual Studio says there is no field or something) the statement in the try block so that it is declared above the try block so I can use it anywhere in the method? Thanks

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  • I am geting message when i am loading VS

    - by kumar
    when loading up a solution in VS2008 I get: An error was encountered while opening associated documents the last time this solution was loaded. Document load is being skipped during this solution load in order to avoid that error. First time when i open it shout down immediatlym then next time when I open it popups this message box it is not shouting down, once I click any usercotrols or ASPX page it is shutting off again.. How can I find which document is causing the problem? Thanks...

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  • Anyone using Moles / Pex in production?

    - by dferraro
    Hi all, I did search the forum and did not find a similar question. I'm looking to make a final decision on our mocking framework of choice moving forward as a best practice - I've decided on Moq... untill I just recently discovered MS has finally created a mocking framework called Moles which seems to work similar to TypeMock via the profiler API sexyness etc.. There's a million 'NMock vs Moq vs TypeMock vs Rhino....' threads on here. But I never see Moles involved.In fact, I did not even know if its existence until a short time ago. Anyone using it? In Production? Anyone dump their old mocking framework for it, and if so, which one? How did it compare to ther mocking frameworks you've used? thanks.. ps, we are using VS2008 and are moving to 2010 shortly.

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  • LinqDataSource wizard table list is not refreshing after updating LinqToSql classes

    - by dotnet_learner
    I have changed my dbml file like this. I have deleted all the tables and stored procs. I added new tables and stored procs from a new database. In the code-behind, I can access the new tables and stored procs. However, in the LinqDataSource using the same dbContext when I'm trying to configure the LinqDataSource. I can see all the old tables in the wizard drop-down. How to refresh the the wizard drop-down so that I can select the newly added tables? Deleting the old LinqDataSourceand adding a new one is not working.

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  • C# - Automatically Format Document

    - by Jeremy Rudd
    Anyway of invoking the Edit Advanced Format Document" VS command automatically when switching away from a document / routinely with a timer / on entering a document? Its really irritating Ctrl+E+D'ing everytime you want to prettify your code.

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