.Net Silverlight Project And MySQL?

Mar 20, 2012

I have found the MySQL .NET Connector - am I correct that this is not compatible with Silverlight and I do not need it?I understand I must use a Web Service for this. Can I use WCF or WCF RIA, or am I best using a more traditional web service method like REST or SOAP?

What's the best web service method for many quick queries (such as updating a search as the user types in the keywords)Do I have to use technology like LINQ, Entity SQL, ADO.NET Framework, or a stored procedure? Is one of these the best way to do it or should I just skip them all and create a simple web service?What's the best source to learn how to do specifically Silverlight VB.NET and MySQL and learn to do it the best way as explained above. Everything I've found (books and websites) seems to be in C#, not a Silverlight product, or just uses built in SQL Server support. For our web app, we need to be able to give the buyer not just access to our client side application via a browser but also the server side so they can OPTIONALLY host the entire product themselves. We're hoping to have one installer for them on their server (so they wouldn't have to set up php or mysql to host the product for example). If I use a VB.NET website and web service, will that deploy as just an exe or dll so the user won't have to install anything special?

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I have a central page loading child controls into a container in a Silverlight Project.Problem is events like button click events are fired twice after processing the child forms.Suspect it might have something to do with a double initializecomponent??

Private Sub btVolgende_Click(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs) Handles btVolgende.Click
Select Case Stadium

[code].....

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Some code:

<Grid x:Name="LayoutRoot" MinHeight="768" MaxHeight="1024" MinWidth="1024" MaxWidth="1280" Background="#FF6A6868" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
<Grid.ColumnDefinitions>
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[code]....

....lots of child canvas items in my "Main Floor" canvas. Child canvas objects contain lots of path objects. None which are taller or wider than the main floor canvas width/height.

<sdk:TabItem Margin="0" Header="Mezzanine">
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..another tab. Same deal with child canvas objects.

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I have determined thanks to the last q & a that there is something wrong with my "save to db" code as well as my "retrieve to picture" code. Even If I manually save the pic in the db it stil wont retreive. This is code i patched together from 3 or 4 examples around the net.

Dim filename As String = txtName.Text + ".jpg"
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Dim ImageStream As System.IO.MemoryStream[code]......

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Sep 22, 2009

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The code i am using is below

Imports MySql.Data.MySqlClient

Public Class Form1

Function UpdateRecord(ByVal query As String) As Integer

[CODE]...

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Here is my code:

Imports MySql.Data.MySqlClient
Public Class LoginForm1
Dim MySqlConnection As MySqlConnection
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[code]....

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Public Class ExtendedDateTimePicker Inherits DateTimePicker

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[Code]...

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Imports MySql.Data.MySqlClient
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[code]....

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i was developing Voice Chat Application in visual Basic .NET 2008 i try a lot methods to make installer for it :

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2- i try make it with Setup Factory 8.2.1

3- i try with MSI Factory 2.0

4 i try with Setup Factory 6.0

and after making installer copying it to my test virtual Machine or my friend lap and install it i get this error when try to run my application :

[Code]...

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.net - Multibinding In Silverlight?

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I am trying to implement multibinding in Silverlight using VB.Net. I have found a very good reference for an implementation in C# here. I spent some time trying to use various converters to migrate it into VB.Net but I still didn't get it working properly. So..

I'm looking for some references that exemplify how MultiBinding can be done in VB.Net. Also an example using Silverlight 5 beta would be fine (I read in a post right here on Stack Overflow that it supports multibinding).

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.net - Write XML In Silverlight With VB?

Apr 4, 2009

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Jul 1, 2010

if this has been asked before (I couldn't find the answer anywhere), but I have a WCF Service Application that I have created, and am trying to access via my Silverlight 4 app. I have added the service reference to the SilverLight App and am just trying to call one of the default pre existing methods on the service (GetData). When calling the method i get an error of:

[Code]...

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I'm testing and trying to understand how to create a DLL and call a function from it in my Silverlight project. I'm getting an exception: Unable to find an entry point named 'WriteTextFile' in DLL 'C: empTestDLL.dll'.[code]...

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I'm connecting to my mysql server using ODBC in vb.net, the database is shared throughout the company because it is used in an accounting program (simply accounting), each user has their own account user/pass to login to the database. I have developped a program that uses the accounting database and combines it with other information, my problem is that at least once a day I get this error when I run my program: "(10061) ERROR [HY000] [MySQL][ODBC 3.51 Driver]Can't connect to MySQL server on"and the error persists for at least 4 hours, for some reason it starts to work again later on in the day.

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error " Unable to cast object of type 'MySql.Data.MySqlClient.MySqlException' to type 'MySql.Data.MySqlClient.MySqlDataReader'. " ?

THIS IS THE CODE Ssql = "SELECT ItemID, Prodname, qty, Desc, Cost * FROM items ORDER BY ItemID ASC"

[Code]...

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May 6, 2011

I call upon your combined intellects. I have a web application with a silverlight app that calls a ria service. The ria service is defined inside the web application and everything else is just dandy.

The issue is this.It is my understanding that in order for the silverlight application to talk and know what the ria service is, you need to add a service reference for that service. The service reference defines the ria service and sets up the connection binding. One of the files it adds is the ServiceReference.ClientConfig which has the connection binding in it. During the course of this application's development, this is the way it was set up. And it worked perfectly fine locally and on the dev server.

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When I open the project it doesn't run at all. And the reason why is that it doesn't know what the service is that i'm using in code. Specifically, it doesn't know where this is (names changed for clarification):

Imports SilverlightApp.ServiceReference.WebApp.Service

I have cleaned the solution, completely deleted and got the latest from source control, built the web app first and made sure the asp.net dev server was running so that the address in the ServiceReference.ClientConfig resolved correctly. But, alas, it still doesn't know what Imports SilverlightApp.ServiceReference.WebApp.Service is.

So, to get it working on my workstation, I added the ServiceReference back but kept the current connection bindings so that it matched the endpoint in the web app web config. and changed the import statement to Imports SilverlightApp.ServiceReference and everything works fine.

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Jan 27, 2011

I currently have a silverlight application which has silverlight class library. The silverlight class library has a WCF service reference which works as expected for small data. However we have come across a problem which is caused by the default value of maxItemsInObjectGraph. We have tested it with an increased value (called from vb app set in behaviour) and it works however we are unsure how to set the value of maxItemsInObjectGraph when it is in a silverlight class library (as it is only defined in the clientconfig file and no services are added to the client). I have seen posts about adding it to the web.config but this only seems to apply when the service is called directly by the app not by a class library?

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