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  • ASP.NET C# Application Object Getters and Setters

    - by kellax
    I have had a hard time finiding a newbie friendly example of accessing Application Object. I have few things ( arrays ) i would like to store in Application Object to keep as persistant data for about 2h till AppRecycle Anyhow i know how to set an Application Object variable this way: // One way String[] users = new String[1000]; Application["users"] = users; // Another way Application.Add("users", users); However i do not know how to access these variables once in Application Object there is a Getter method Get however it requires int index and other one Contents which get's everything. Here i try to retrive my String[] array but gives me a error that i am trying to convert Object to String. String[] usersTable = Application["users"]; // Since this is an object i also tried Application.users but gives error

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  • ASp.Net MVC routing

    - by suneehs
    Hi, I am using MVC 2.0 to create my application,my problem i s related to the routing. Actually in my application each user have required seperate subdomain,like www.example.com/user1/ ,www.example.com/user2/ ...etc.the default domain is www.example.com.So how can i make it possible with routing in mvc. i have tried like this, routes.Add(new Route( "{id}", new RouteValueDictionary( new { controller = "User", action = "login", id = " " } ), new MvcRouteHandler())); var defaults = new RouteValueDictionary( new { controller = "Home", action = "Index", id = UrlParameter.Optional } ); routes.Add(new Route( "{controller}/{action}/{id}", defaults, new MvcRouteHandler())); But the problem is that it take deafult (www.example.com) directly to user login page.I want the default page as Home/index and when www.example.com/user1/ it will go to user login page.Is there any way ..pls help me

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  • DrawString only works in top-left part of form vb.net

    - by WillumMaguire
    Here is my code Public Class Form1 Public MyFormObject As Graphics = Me.CreateGraphics Public objFont = New System.Drawing.Font("arial", 20) Public a, b As Integer Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Randomize() For i = 1 To 10 a = CInt(Int(Rnd() * Me.Width)) b = CInt(Int(Rnd() * Me.Height)) MyFormObject.DrawString("text", objFont, System.Drawing.Brushes.Black, a, b) Next End Sub End Class As you can see, I have one button that draws the string "text" randomly in the form 10 times. My problem is that it will ONLY draw the string in the upper-left portion of the form, roughly 260x260 starting at 0,0. It literally cuts off the text if it goes beyond. Why is this? Shouldn't it work for the entire form?

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  • .NET platform independant sync framework

    - by Quandary
    Question: I need to synchronize a few ActionScript files from my computer to a network share (backup). I saw a quick fix would be using Microsoft Sync Framework for this, and write a windows service. My problem is I also use Linux, and before I start with MS vendor lockin, is there any sync framework/library/whatever I could use that works accross platform? Or does the MS sync framework work on Linux, too? It is my understanding that it is a wrapper around some com objects, thus it wouldn't work. All I need is synchronizing files. So never mind the database part, although it would be nice to have it, too.

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  • ASP.NET Custom Control - Default Template?

    - by Bob Fincheimer
    I know this is really picky, but can I have one template inside a user control: <uc:MyUserControl runat="server" ID="test"> <div><b>Test</b></div> <asp:PlaceHolder runat="server" id="pH" /> </uc:MyUserControl> Instead of what I have now which requires me to: <uc:MyUserControl runat="server" ID="test"> <Content> <div><b>Test</b></div> <asp:PlaceHolder runat="server" id="pH" /> </Content> </uc:MyUserControl> Basically I want my control to have only one ITemplate inside of it.

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  • Forcing A Postback Asp.Net

    - by Nick LaMarca
    Please take a look at the following click event... Protected Sub btnDownloadEmpl_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDownloadEmpl.Click Dim emplTable As DataTable = SiteAccess.DownloadEmployee_H() Dim d As String = Format(Date.Now, "d") Dim ad() As String = d.Split("/") Dim fd As String = ad(0) & ad(1) Dim fn As String = "E_" & fd & ".csv" Response.ContentType = "text/csv" Response.AddHeader("Content-Disposition", "attachment; filename=" & fn) CreateCSVFile(emplTable, Response.Output) Response.Flush() Response.End() lblEmpl.Visible = True End Sub This code simply exports data from a datatable to a csv file. The problem here is lblEmpl.Visible=true never gets hit because this code doesnt cause a postback to the server. Even if I put the line of code lblEmpl.Visible=true at the top of the click event the line executes fine, but the page is never updated. How can I fix this?

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  • asp.net formatting an email

    - by user279521
    I am working on an application that involves the user clicking on a hyperlink to popup an outlook email template. I have the SendTo values, and the subject values. How do I enter text into the body of the email?

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  • VB.net save opened word document!

    - by comii
    Hi! I just trying to made word add-ins that gone save opened document.I made ribbon and button on it.Below is the that i use for saving word document on certain location: Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As Microsoft.Office.Tools.Ribbon.RibbonControlEventArgs) Handles Button1.Click Dim ThisApplication As Word.Application ThisApplication.ActiveDocument.SaveAs("C:\email") ThisApplication.Quit() ThisApplication= Nothing End Sub But when i click on this button i just made email.doc but that document does not contain any content of the opened document, it just made new doc file. What i am doing wrong? The event on this button need to just same as event on standard Word save button, so how i can do this?

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  • .Net in HTML tp return true if reader object not null, otherwise return false

    - by Phill Healey
    I'm using a DataList to show some data from the database and populating the fields on the html side. I now have a requirement to change the visibility of a panel based on whether or not a db field has data or not. I need to be able to show the panel if the relevant data field has content, and hide it if it doesn't. Eg: <asp:Panel ID="pnlNew" runat="server" Style="margin:0; padding:0; width:42px; height:18px; bottom:5px; right:10px; float:right; position:relative; background:url(../_imgVideoBadge.png) no-repeat;" Visible='<%# Eval("cheese") != null %>' ToolTip="available"></asp:Panel> Obviously this doesn't work in terms of the visible property. But hopefully it gives an idea of what I'm trying to achieve. Any help would be greatly appreciated. I've seen examples previously of doing something along the lines of: a ?? b:c How could this be applied to the above requirement?? Thanks in advance.

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  • ado.net data entity problem

    - by ognjenb
    I have this error Cannot implicitly convert type 'System.Linq.IQueryable' to 'Mvc.Models.engineer'. An explicit conversion exists (are you missing a cast?) after write this code engineer Ing = new engineer(); Ing = from j in testPersons.ibekoengineer select j.Name; What is wrong?

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  • VB.NET Update Access Database with DataTable

    - by sinDizzy
    I've been perusing some hep forums and some help books but cant seem to get my head wrapped around this. My task is to read data from two text files and then load that data into an existing MS Access 2007 database. So here is what i'm trying to do: Read data from first text file and for every line of data add data to a DataTable using CarID as my unique field. Read data from second text file and look for existing CarID in DataTable if exists update that row. If it doesnt exist add a new row. once im done push the contents of the DataTable to the database. What i have so far: Dim sSQL As String = "SELECT * FROM tblCars" Dim da As New OleDb.OleDbDataAdapter(sSQL, conn) Dim ds As New DataSet da.Fill(ds, "CarData") Dim cb As New OleDb.OleDbCommandBuilder(da) 'loop read a line of text and parse it out. gets dd, dc, and carId 'create a new empty row Dim dsNewRow As DataRow = ds.Tables("CarData").NewRow() 'update the new row with fresh data dsNewRow.Item("DriveDate") = dd dsNewRow.Item("DCode") = dc dsNewRow.Item("CarNum") = carID 'about 15 more fields 'add the filled row to the DataSet table ds.Tables("CarData").Rows.Add(dsNewRow) 'end loop 'update the database with the new rows da.Update(ds, "CarData") Questions: In constructing my table i use "SELECT * FROM tblCars" but what if that table has millions of records already. Is that not a waste of resources? Should i be trying something different if i want to update with new records? Once Im done with the first text file i then go to my next text file. Whats the best approach here: To First look for an existing record based on CarNum or to create a second table and then merge the two at the end? Finally when the DataTable is done being populated and im pushing it to the database i want to make sure that if records already exist with three primary fields (DriveDate, DCode, and CarNum) that they get updated with new fields and if it doesn't exist then those records get appended. Is that possible with my process? tia AGP

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  • Deserialising Json to derived types in Asp.Net Web API

    - by IoChaos
    I'm calling a method of my WebAPI sending a json that I would like to match (or bind) with a model. In the controller I have a method like: public Result Post([ModelBinder(typeof(CustomModelBinder))]MyClass model); 'MyClass', wich is given as a parameter is an abstract class. I would like that at, depending of the type of json passed, the correct inherited class is instantiated. To achieve it, I'm trying to implement a custom binder. The problem is that (I don't know if it's very basic but I can't find anything) I don't know how to retrieve the raw Json (or better, some kind of serialization) that comes in the request. I see: actionContext.Request.Content But all methods are exposed as async. I don't know who this fits with passing the generate model to the controller method... Thanks a lot!

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  • ASP.NET MVC Inheriting from ProfileBase

    - by Glen
    I have 2 related issues. I inherited from ProfileBase and I have a couple of properites as such public SomeType PropertyName { get { return (SomeType)base["PropertyName"]; } set { base["PropertyName"] = value; Save(); } } I also have a User class (UserId, UserName, Profile, LastActivityDate) that has 2 additional properties out of the profile that I retrieve in my View to show a list of Users (i.e. @Model.Profile.PropertyName). However, everytime I access a property (from my View) it seems to update the LastActivityDate in the aspnet_Users table because when I show the LastActivityDate as well as the profile properties on my screen the LastActivtyDate is out of sync with the database. Also there is a LastActivityDate property available in my profile which unfortunately is not available and is in fact set to null and throws an exception when accessing it saying the property UserName is null. So the static Create method provided by ProfileBase seems to retrieve the correct profile properties but does not set the base's UserName property even though you pass in a UserName parameter to the Create method. Is this a internal bug? I was kind of hoping if by accessing the property because the LastActivityDate is updated then I could store that value to update my LastActivityDate in my User class before it is rendered to the page. The only way I can think of doing it is: public SomeType PropertyName { get { SomeType result = (SomeType)base["PropertyName"]; OnLastActivityDateChanged(); return result; } set { base["PropertyName"] = value; } } then in my User class: ... public MyProfile() { Profile.LastActivityDateChanged += Profile_LastActivityDateChanged(); } ~MyProfile() { Profile.LastActivityDateChanged -= Profile_LastActivityDateChanged(); } ... void Profile_LastActivityDateChanged(object sender, EventArgs e) { //Run a query to get the latest LastActivityDate this.LastActivityDate = ... } It seems I have to make 1 call to retrieve the full list to my aspnet_Users table then another call for each row just to get the latest activity date. ARGGGGHHH!!! Am I going about this the wrong way! I put an ajax refresh hyperlink next to each User row and when I click it, immediately after loading the page, the value changes. Therefore my suspision is valid that calling a property via the inherited profilebase class updates the value. Is there a workaround? It is a bit miss leading when my page says User Smith has no activity for 4 days then I click my ajax refresh link (or refresh the whole page for that matter) and now it says Smith was active but it was just me meally showing the page that indirectly caused an activity read event.

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  • ASP.NET MVC - Appending data onto a file download

    - by aschepis
    what is the best way to append data onto a file download? I figure that i can make my own class that implements InputStream and just consolidates two input streams (the file first, my additional data to append second.) but is there an existing view class that i can use to just return an InputStream or will i have to roll my own view class as well?

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  • ASP.NET - How to edit 'bit' data type?

    - by Peter
    I am coding in Visual Basic. I am using a checkbox control. Now depending on its checked property I need to set/unset a bit column in a SQL Server database. Here's the code: Try conSQL.Open() Dim cmd As New SqlCommand("update Student set send_mail = " + _ sendemailCheckBox.Checked.ToString + " where student_id = '" _ + sidnolabel.Text + "'", conSQL) cmd.ExecuteNonQuery() Finally conSQL.Close() End Try The send_mail attribute is of bit datatype. This code is not working. How do I go about it?

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  • Update query in ado.net

    - by nikhil
    I wanted to update a column in my table, i have written the code it runs fine without any error also it displays the confirmation dialog box but the table is not updated whats wrong with the code. Dim sqlConn As New SqlClient.SqlConnection sqlConn.ConnectionString = "Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\housingsociety.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True" Try sqlConn.Open() Catch sqlError As Exception MsgBox(sqlError.Message, 0, "Connection Error!") End Try Dim sqlComm As New SqlClient.SqlCommand sqlComm.Connection = sqlConn sqlComm.CommandText = "update committe_member set name = '@name' where name = 'member1'" Dim paramString As New SqlClient.SqlParameter("@name", SqlDbType.VarChar, 50) paramString.Direction = ParameterDirection.Input sqlComm.Parameters.Add(paramString) paramString.Value = TextBox1.Text sqlComm.ExecuteNonQuery() MsgBox("Record Sucessfully Altered", 0, "Confirmation!") sqlConn.Close()

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  • Best .NET Solution for Frequently Changed Database

    - by sestocker
    I am currently architecting a small CRUD applicaton. Their database is a huge mess and will be changing frequently over the course of the next 6 months to a year. What would you recommend for my data layer: 1) ORM (if so, which one?) 2) Linq2Sql 3) Stored Procedures 4) Parametrized Queries I really need a solution that will be dynamic enough (both fast and easy) where I can replace tables and add/delete columns frequently. Note: I do not have much experience with ORM (only a little SubSonic) and generally tend to use stored procedures so maybe that would be the way to go. I would love to learn Ling2Sql or NHibernate if either would allow for the situation I've described above.

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  • connecting to oracle database from c# asp.net mvc website

    - by ooo
    I am trying to connect to oracle database. I am able to connect to it through a local SQL Developer tool by sticking something in the oranames.tns file. My question is that i will be deploying this website to a number of places. A few questions: What is the simplest way i can use to connect to this database and do very basic queries. I see some examples that have me referencing oracleclient dlls. Other methods not? Is there a best practice here? Am i going to have to update the oranames.tns file on everyone on of the machines that i deploy to ? is there any simpler way

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  • Why Isn't My .Net Object Serializable?

    - by Rob P.
    I've got a 'MyDataTable' class that inherits from System.Data.DataTable I've implemented ISerializable in my class and have a 'Public Overrides Sub GetObjectData...' But when I try to serialize the an object of 'MyDataTable' I get an error saying that 'MyDataTable' is not marked as serializable. If I used a DataTable instead - my code serializes correctly. If I add a serializable attribute to the 'MyDataTable' class - it serializes correctly, but I'm told that is unnecessary if I implement ISerializable. Can someone point me in the right direction?

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  • Problem using GDI+ with multiple threads (VB.NET)

    - by Joe B
    I think it would be best if I just copy and pasted the code (it's very trivial). Private Sub Main() Handles MyBase.Shown timer.Interval = 10 timer.Enabled = True End Sub Private Sub Form1_Paint(ByVal sender As System.Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint e.Graphics.DrawImage(image, 0, 0) End Sub Private Sub tick() Handles timer.Elapsed Using g = Graphics.FromImage(image) g.Clear(Color.Transparent) g.DrawLine(Pens.Red, 0 + i, 0 + i, Me.Width - i, Me.Height - i) End Using Me.Invalidate() End Sub An exception, "The object is currently in use elsewhere", is raised during the tick event. Could someone tell me why this happens and how to solve it? Thanks.

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