Winforms - Pass Dynamic Connection String To Another Windows Form?
Feb 20, 2012
I am creating a windows application which required Dynamic Connection String in the app starting (user need to provide db credentials through a form), After entering the connection credentials user redirected to new win form Everything is working fine but how can I pass my dynamic connection to another form.I tried to save it to App variable but I couldn't (I think its read only) Also I tried save it to registry but can't retrieve values.Is there any other option available ? like writing & retrieving ConString to a text file or XML.
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Sep 3, 2011
I understand the possibilities for encrypting a connection string in .net v4. I have a win forms application that will be used by multiple people on different machines. I understand that I need to protect the connection string at time of the app being first run on the target machine. However I am concerned that for a period of time my connection string will be unencrypted. I am looking for advice in how to deploy my app with the connection string already encrypted or encrypted during installation. encrypting the connection string in a secure way?
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Sep 8, 2010
I have pairs of controls: immagebox + textbox = one pair.I want these to show up in a single column grid/tabular format.Each cell contains one image/text pair.I want this grid to scroll because the number of pairs is dynamic depending on a user selection.I suppose I will be adding these controls in code at runtime when the user makes his/her selection.
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Feb 17, 2010
I am working asp.net for a few years. In asp.net, database connection string is stored at web.config file. All page can share this connection string. Now, I need to learn how to create windows app. Where to store a connection string, e.g. connect to SQL, to Access DB, so that all windows forms can share it?
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Nov 21, 2009
I'm starting using a project for smart device in windows CE 5. I'm using visual basic of v. studio 2008.I need to create a dynamic connection between a PDA (codebar lector) and an server with ORACLE 9i. The PDA connected via WIFI. But in my vb project I don't find OLEDB or ODBC elements.
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Jul 7, 2009
How to make Dynamic Connection string for VB.Net 2008 & Sql Server 2005 database
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Jan 1, 2011
where can I find the default constructor of a windows form? I mean:
Public Sub New()
End Sub
I should say that I Use Visual Studio 2008 as my editor.
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Jun 8, 2012
We are going to change the connection string in Settings.vb so we don't need to worry about what it is when our app runs on a different computer other than the development computer.
[Code]...
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Apr 17, 2009
i wrote a program that connect to sql server via a specify server name , user nameasswordim baby as new sqlconnection("server=baby;uid=sa;pwd=sa;database=baby")
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May 1, 2012
My problem is that is have 4 forms, 3 of these forms allow me to pass variables between them.. however one form the Booking form won't allow me to pass the txtTotal variable to the Confirmation Form.
All the other forms all me to do this, im not doing anything different i can see... im thinking that perhaps another part of the form is prohibiting me from passing that txtTotal to the Confirmatin form.[code]...
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Jan 9, 2011
All the other forms all me to do this, im not doing anything different i can see... im thinking that perhaps another part of the form is prohibiting me from passing that txtTotal to the Confirmatin form.The following is for the Confirmation form, it should display the txtTotal in lblprice from the Booking form but shows nothing
Public Class Confirmation
Private Sub btnBack_Click(sender As System.Object, e As System.EventArgs) Handles btnBack.Click
[code].....
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Feb 14, 2010
I have a Visual Basic .Net form (launches after the splash screen tests database connectivity) and it is not focusing above other existing windows on launch. How do I get it to focus above all existing windows and Windows Explorer windows?
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Jan 22, 2011
how to pass value from one form into another form...? for example if i have 1 mdiform and 2 form (form1, and form2) for load form1 i'm using system.reflection.assembly here is the code for load form1 :
Imports System.Reflection
Private Asm As Assembly
Private FrmNama As Form
Public Function GetForm(ByVal FormName As String) As Form
[code]....
after form1 load i call form2 from form1 and from form2 i want pass value, here is the code from form2 to pass value into form1 :
form1.textbox1.text = textform2.text
why value from form2 can't fill into textbox1 in form1?
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Apr 4, 2011
I could review that could help me create a designer view (actually similar to how Visual Studio works but more basic), I would like to be able to add controls dynamically (just panels or images), then move those around individually(drag and drop), then count them all and get an array of what I have added..[code]But I would like to get an idea how it looks if things get more complicated..I wonder, are we able to use the classes of Visual Studio's editor in some way? Or are there .NEt classses that can do this?
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Mar 3, 2011
I have a picture box with a label underneath it. The text of that label changes based on events. The problem I have, is when the text changes the label is no longer centered underneath my picture box.
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Mar 30, 2011
I use ODBC connection for my application (controlpanel -> administrativetools -> odbc -> DSN) to sql server 2008, and windows authentication
it works perfect on windows xp,but now I run it on windows7 and sql server 2008 with sql server authentication.when I make the DSN and query the connection its ok and I got this message (TESTS COMPLETED SUCCESSFULLY!)but when I run the application I got this error (ERROR [28000] [Microsoft][ODBC SQL Server Driver][SQL Server]Login failed for user ''. ERROR [28000] [Microsoft][ODBC SQL Server Driver][SQL Server]Login failed for user ''.) I think a little more and I found that Maybe my password doesn't save for my user, when I make that DSN?
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Dec 8, 2011
I have tested my code in a windows form project and it works great. so now I want it to run as a service.The problem i have is referring to "name" in my configuration string which is in app.config.
Dim settings As ConnectionStringSettings = _
ConfigurationManager.ConnectionStrings(Name)
(Name) is under-squiggled and message name is not declared, file IO functionality is available in the microsoft.visualbasic namespace.
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Mar 4, 2012
I've decided to learn Visual Basic .Net as this is what some of my colleagues work with, and this will allow me to work with them on projects.I have purchased Microsoft Visual Basic 2010 Step by Step and downloaded the sample files. When I am trying to debug the first sample application (a Windows form), it is telling me that it can't load System.Drawing V4.0.0.0. However, if I create a new Windows Form application (C# or VB.Net) this works fine.
I had a look at the References tab in the project settings and System.Windows.Forms is referenced, but the version referenced is 2.0.0.0. I have removed and re-added this reference and it stays at 2.0.0.0 and I still get the error.Does anybody have any ideas as to what may be going on?
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Aug 25, 2009
How do I assign a My.Settings.Item connection string to cmd.Connection connection string value?
Dim cmd As New SqlCommand()
cmd.Connection = My.Settings.Item("csStaffHoursWorked")
cmd.CommandType = CommandType.StoredProcedure
cmd.CommandText = "spSaveDeltekImport"
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May 8, 2010
I am trying to follow an example in the VB 2010 book and the author has set up the local server using a named instance of SQLEXPRESS and uses mixed mode authentication with a sa login and wrox as the password the code is then
[code]...
I am using the Express server initially set up for windows authentication (pubs is one of 6 databases on it) but no matter what I seem to try I can not connect
[code]...
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Sep 20, 2010
I'm using vs2010 and can't get this to work. The same code has worked in earlier versions. What has changed?
config file:
<appSettings>
<add key="ConnectionString" value="Data Source=MikeLaptop;Initial Catalog=AdventureWorksDW2008R2;Integrated Security=True"/>
</appSettings>
Code:
Dim strProvider As String = ConfigurationManager.AppSettings("ConnectionString")
strProvider is always = nothing
How to do this now?
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Sep 10, 2010
FormA contain a textbox for user to enter their name and a button. When the user click the button, it will show the FormB which contain the CrystalReportViewer. I would like to to display the name which the user enter in the textbox on FormA on the CyrstalReportViewer.
The question is, how do I pass the textbox value to the Crystal Report Viewer The secondary question is how I am going to display the value on the Crystal Report Viewer.For you information, I am using VB.net.
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Aug 13, 2009
I'm trying to program in a true object oriented manner and its causing me to re-learn a few things. Specifically, I'm having some trouble with error handling. I have all of my data access being performed by an adapter class in a seperate project. I can catch duplicate records without any problems, but I want to be able to send a message back to the user. Here's what I have so far:
[Code]...
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Mar 11, 2010
I got this Error Message while I try to preview the records in Dataset Designer:"The connection string could not be found or Data provider associated with the connection string could not be loaded"
Here is my dataset.xsd code
<Connections>
<Connection AppSettingsObjectName="MySettings" AppSettingsPropertyName="loginConnectionString1" IsAppSettingsProperty="true" Modifier="Assembly" Name="loginConnectionString1 (MySettings)"
[code]....
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Jan 27, 2011
I am attempting to update an existing winforms application, that was created with a dataset control on all the winforms pages. I have ported it from VS 2008 to VS 2010 and I need to update the database section and connect it to the SQL backend using traditional code method.In the Solution explorer, when I click on the Dataset files, and click "Exclude From project" I am unable to build the project.Is it advisable to comment out the code lines that refer to the dataset in the .designer.vb files?
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Mar 31, 2012
so i have a series of panels that are generated
example:
For i as integer 1 to dt.rows.count
dim subpan as new panel
*Code for creating panel"
Next
the problem is i need to be able to add event handlers to each of them including, click, mouseEnter and mouseLeave but i can't figure out how to index each panel so that they can be accessed and identified. i tried using a property but that didn't seem to work or i was doing it wrong.
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Jul 8, 2009
I am working on a project. Part of my project requires me to capture data, for example, email address, from certain rows/columns of a datagridview(form2.vb) and displays them in a textbox on another windows form(form1.vb) with a click of a button(Add Contact button). The problem is the datagridview on my form must be able to display databases by making a connection to Microsoft SQL Server 2005 but so far, i have not been able to do that. I have seen many codes with regards to my problem but i do not know how to implement it.
Below are my codes that i have written so far. My program's limitations are not being able to display databases from Microsoft SQL Server 2005 so i created the statement below to add columns and test my codes.
DataGridView1.Columns.Add("CustName", "CustName")
DataGridView1.Columns.Add("Email", "Email")
[Code]...
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Jan 10, 2011
In other languages (PHP/Python), I am used to creating a class which represents a given HTML page layout. These classes can have an unlimited number of attributes and dynamic features, such as Navigation (multi level), error messages, info messages, footer text, etc... Most of these items have defaults, but may be overridden on a per-page level. For example:
[Code]....
My question is: how do I implement similar functionality into ASP.Net MVC 3 Razor (VB)? So far, I have been able to see how you can use ViewData to pass various bits of data to a view. Also, I have been working with strongly typed views. Frankly, I'm not sure who's job it is to have this logic, the controller or the view (or is there a model that should be in there somewhere). Here is a summary of what I am shooting for:
A single place to initialize the default values for the layout (like the first layer of navigation, etc...) Strongly typed attributes, such as Public Readonly Property Nav1 as List(of NavElement) And a single place to render these layout elements (I assume _Layout.vbhtml) forgive the here-and-there of this post... I'm trying to figure out the "right way" it's done on a platform that is both new (Razor) and new to me (ASP.Net MVC).
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Jul 24, 2011
I've successfully saved video files into SQL server as varbinary. Now, my problem is, how can I play those videos in Windows Media Player (embedded in my Windows Forms).
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Dec 1, 2011
I am developing an .net Winforms application and I need to secure the connection to the sql server 2008 database. I plan to create a webservice as a middle tier that will handle the authentication and that will provide data manipulation. Is there a better way to go with? Does .net have components or tools for that? What is the best technique?
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