Modifying Names And Data Via The App.config File?
Mar 23, 2011
1. The application's text box controls are entered manually in my.settings (e.g., tb1, tb2, tb3)
2. The application user "adds" a row of text boxes, which are iteratively assigned a name to match the above my.settings names
3. Upon "save" by user, the text in each text box is associated with its control (e.g., If cntl.Name = "tb1" then My.Settings.tb1 = cntl.Text)
4. The User needs to delete one or more rows previously added
Question:Under #4 of above, what is the best way to delete the rows and how can I use the app.config file to update the above data so I can reuse the named text boxes and keep everything sequential?
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Jan 18, 2010
is there any tool to validate configuration file?
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Aug 15, 2011
I have a DataGridView which populates from an SQL query just fine in default mode
using these table names
[firstName] [varchar](20) NOT NULL,
[lastName] [varchar](20) NOT NULL,
[code]....
I have edited the column headers and set the column names to the same values as my table names yet the data is not showing in form load I have set datagridview.AutoGenerateColumns = False I know the data is there if I delete datagridview.AutoGenerateColumns = False then the data is shown with the default headings?
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Feb 22, 2011
Modifying data with the ListView's EditItemTemplate by programmatically settings its DataSource property and calling its DataBind method. I don't have option to use data source control for ListView. All ListViews are bound with data from code-behind. So, I have to handle the Edit/Update mode of ListView manually. [Code]
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Mar 16, 2011
Locality Not repeating code..Modifying program means modifying one aspects.
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Nov 9, 2005
I made project using VB.Net 2005 with multi languages, the first form is MDIParent form with MainMenu and toolbars also there is some changes in properties as righttoleft and text of forms.In my Mainmenu (Menustrip) there is opetion to change the UI Culture and I have already done but I need to change all texts in the form as mainmenu items anf form properties.My quetion is: how can I reload my form again to read the new texts names and mainmenu items names from resx file?
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Mar 1, 2012
I am populating data form database in combobox. This data is in the form of numeric codes like 112, 113,
The thing i want to do is on selecting some code like 113 from combobox, it will display it as ABC113 in the combobox.if code like 114 selected from combobox, it will display it as ABC114 in the combobox.
I don't want to store this modified string in database.
Please help me to achieve this.
Provide me some sample code or link for simple combobox or combobox in datagrid.
i think there is no change in code in both above cases.
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Jan 25, 2012
reading and modifying data from database
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Sep 3, 2009
I have a dataset bound to a DGV thus:
Me.BudgetTypesTableAdapter.Fill(Me.RestelDataSet.BudgetTypes)
When I save new data I use :
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
Me.Validate()
[Code].....
should work as the Rowstate is checked to see what should happen ie (UPDATE, MODIFY OR DELETE).
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May 12, 2012
I've been trying for a long time to create a sorted table of values in a particularly specific way, and I seem to be running into a wall in .NET's file operations. The premise is this - I'm creating a table of values which are being stored as [1 Byte][2 Bytes][3 Bytes]. The location within the file is a value that relates to these three stored values, and so I'm attempting to seek to a specific position in the file, write the 6 bytes into that position, and repeat. There are literally billions of these values, and the total file size is over 100 GB.
Now, I've tried multiple methods to do this, but every single time, it decides it needs to rewrite the ENTIRE FILE every time any change is made. This results in every one of these billions of iterations taking a good 15 minutes, making the task literally impossible. I'm using .NET 4, and I've attempted to use Text, Binary, and Random Access to get it not to rewrite the entire file every edit, but it simply will not obey.
So my question boils down to this: How do I edit specific bytes in a file without writing more than just those bytes? The entire file has been pre-created to the precise size required, and no bytes will be added or deleted in the process. I simply need to overwrite the bytes that already exist.
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Apr 19, 2012
I am new to programming, so I am looking for somewhere to start with this project.What My project needs to do, is that the user inserts data consisting of multiple lines (up to thousands of lines) Into a text box of any type.When a button is clicked on it goes through the lines and alters lines based on what it starts with.
[Code]...
Clicking the button would cause every line with DDE at the beginning to be deleted, while leaving everything else intact.I'm not just looking for handouts, I do want to learn. I just to know what to look at to do this.
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May 11, 2009
I want to use dataset for sql server for adding/modifying/deleting data from sql server.
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Dec 12, 2009
I'm trying to update some data fields in an existing data table, and want to access the data directly. I know it's possible, and I used to do it years ago in VBA, where you could do things like
[Code]...
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Aug 23, 2011
I found a CSS file while I was searching for how to create tabs without using images. I came across CSS Tabs 2.0. which serves my purpose.However, now I need to customize it to fit my asp.net page, and I can't seem to be able to get anywhere.The CSS file uses a
<ul and an <li
I am using a Table with <tr> and <td>
This is the sample code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">[code]......
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Jan 11, 2010
I have to convert this as stated. I am trying to retrive the next position line in an .txt file based upon a user's integer.Basically retrive the next .txt line from user input to an lbldisplay.
Option Explicit On
Option Strict On
Option Infer Off
Public Class frmMain
[code]....
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Sep 9, 2010
I'm trying to access a database (SQL Server 2008 express) using Visual Basic 2010 Express. First I got a permission error that was solved modifying the Database permissions. Now I get a new error message "This file is in use. Enter a new name .." I already have changed the Autoclose propertie to true, and also tried detaching the Database.
I'm using Windows Vista Home Premium, my string:
Data Source=.SQLEXPRESS;AttachDbFilename="C:Program FilesMicrosoft SQL ServerMSSQL10_50.MSSQL10MSSQLDATAemplo1.mdf";
Integrated Security=True;
Connect Timeout=30;
User Instance=True
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May 25, 2006
I am experiencing a problem when trying to convert a rather large VB6 application into a .Net 2005 application. Everytime I try to convert the project I get the following error: "Upgrade Failed: Exception occurred: Can't use character device names in file names"The weird thing is i have tried to convert the project using .Net 2003 and I do not get the error, it does convert.
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Jun 14, 2009
I modified some code to suit one of my other programs, but have come across a difficulty: For some reason, the output file is not outputting. I can tell all the calculations are being made (my computer is loud), but it's just not outputting.What should I look out for when modifying stanav's code that would cause the output file not to be outputted ?
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Nov 23, 2009
I have written a VB.NET 2008 application, incorporating Microsoft.Office.Interop.Excel, that modifies an existing Excel 2007 spreadsheet. It works perfectly on my WinXP development computer.When I upload the app to a Microsoft Web Server 2008, it opens the file and reads from the file, but when the app tries to save the file, it throws this exception:"System.Runtime.InteropServices.COMException (0x800A03EC): 'july2009.xlsx' is read-only. To save a copy, click OK, then give the workbook a new name in the Save As dialog box."The file is NOT read-only, nor is it opened by any other user or app.The app and the Excel file both reside on the D: (data-only) drive.My first instinct was to look at file permissions. When nothing else worked, I literally created a temporary Group, added EVERY user and security entity to it and granted the group full control of the entire D: drive. No luck.
Then I tried manually elevating the permission by running my app as administrator. No luck.Finally, I copied the file to my XP development computer and ran the app there. Of course it worked perfectly.Can anyone please tell me how to give my program permission to edit a file on Server 2008?
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Oct 8, 2010
Does VB 2010 offer native support for reading and modifying ID3 metadata in MP3 files? A brief search through MSDN shows me nothing, and I see someone says he had to write his own library of code for it. But that was some years ago, when you had to write code to access JPEG Exif metadata, and I know that's changed with the Image class and the GetPropertyItem method; so I'm hoping MP3 files have their own methods and properties now for this.
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Apr 16, 2012
I developed an windows application using visual basic.NET. I configured my database connection string in app.config file. The problem is that I can retrieve data but cannot insert data into the database. the config file
[Code]...
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Apr 24, 2009
I have the following line in my web.config
<appSettings>
<add key="AdminPassword" value="ASDF1234" />
</appSettings>
How can I encrypt it?
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Jan 3, 2010
I'm looking for a way to specify the location for the User.config file that is used for storing the My.Settings object. It appears that this is not possible. The problem for me is, I don't want to be responsible for creating several different files on the users computer that really have no use and are difficult to find and clean once an update is released. For most users, this is not a serious problem, as many will probably never update the software, and most will probably only go through a couple of updates. On my system, there are config files for every build of the application, and the same to a lesser extent will be true for my beta testers.
I can understand that MS wants to make sure that no two applications will use the same location for storing application data, but a simple [UserData] [CompanyName][ApplicationName] for storing application data will probably suffice for 99.9999 percent of the legitimate applications in the world. Bogging a user's system down with erroneous files, no matter how small, is an unnecessary drain on system resources and a potential source of problems for the user. It's bad enough that most programs leave bits and pieces of themselves all over a user's system after De-installation - this to me seems only to exaggerate this problem.
Is the only way to get around this problem to write a whole new Settings Class? Is there a way to change the location of the UserConfig file to a more friendly (and more predictable) location that I am not finding for myself? It would seem that having at least the OPTION to specify a location for the User.Config file would be OBVIOUS and easy to implement, so why did they leave this out?
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Feb 3, 2010
I am working on a VB Console Application that takes an Autocad drawing type DWG and converts it to a PDF using a shell command that calls a third party application. In this case, acmecadconverter.exe from www.dwgtool.com. Then the PDF that is created needs a unique watermark, so I call a second application for that called pdftk.exe from www.accesspdf.com/pdftk/.
Everything works as intended, except when I try file names that contain spaces. The file system object does not tolerate spaces in the drawing file name. For instance, the following command gives me a system.io.filenotfoundexception...
My.Computer.FileSystem.RenameFile("Test Flowchart1.dwg", "Test~Flowchart1.dwg")
It's the same problem for all of my File System commands. Either file not found or invalid arguments.
The complete script I'm using is here:
Code:
Sub Main()
Dim arrArgs() As String = Command.Split(","), _
i As Integer, folderPath As String, myPart As String, _
[Code].....
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Aug 4, 2009
Dim SQLData = System.Configuration.ConfigurationManager.AppSettings("FixedLineProvisioningConnectionString")
[code].....
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Dec 29, 2010
I have this pretty simple application, it uses a webService to transfer data to my servers DataBase. Now it is very important for me to keep this application as one single file, and not having some XML files needed for it to work, but this is the case. I think the XML file holds the information to this webService, so without it the application crashes. Is there a way to get the application to work without this XML file, or a way to put the XML inside the exe archive?
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Mar 26, 2009
I have a class library (Named ADI), that needs some configuration settings from the project using it (like connectionstring, filesystem locations etc).
I want to define these settings in my Windows Forms/Web Projects App.Config or Web.Config, like other settings.
Here is part of my app.config for my windows forms application:
<applicationSettings>
<PhotoImportRobot.My.MySettings>
<setting name="ADIImageRoot" serializeAs="String">
[Code]....
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Mar 23, 2010
Im experiencing some problems while attempting to read a connection string from an App.config file in my Data Access Layer.I added the App.Config to the DAL Class Library, and added my connection string to the connectionStrings section but when I try to read it from my DAL its Returing Nothing.
[Code]...
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Dec 6, 2011
I have existing file named myapp.exe.config . What I would like to do is have a little app where user could specify path to app database. I know how to get file path but I dont know how to change existing line in myapp.exe.config file. No changes during runtime. Just simple app to change string in app.config file. I would like to enable user to select path to database and store that path in app.config file. Line which I would to change has a string "|DataDirectory|mydatabase.accdb" and i would like to change it with for ex. "C:Myappmydatabase.accdb" ( if it is selected file's path).
[Code]...
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May 22, 2009
What i want to do is use a config file to save the value that a user sets in a Folder browser dialog so that i can use the directory they select to write to files in that directory
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