Dbtype Of Common Dbparameter
Aug 9, 2009if i miss to set dbtype of my parameters (common.dbparameter) it works fine again?Is necessary to explain dbtype or not?
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Sql Parameter Setting Incorrect DbType
Jun 22, 2010So I have this weird issue where I set a SqlParameter.DbType field = to a SqlDbType.Decimal, but instead it sets it to a SqlDbType.DateTime. I'm going to include 2 screen shots from the debugger one line after the set statement. As you can see when I hover over (just after the execution of that line), it set the param.DbType to the wrong value. I can only assume that the param.DbType has code that incorrectly changing the type. How can param.DbType become a SqlDbType.DateTime when the varable I'm setting it to is a SqlDbType.Decimal? I'm targeting the .Net Framework 3.5.
View 5 Replies.net - Handling Different DbType Enums In Database-Agnostic Architecture?
Apr 17, 2012Here's my current set-up:
Public Interface IDatabase
Function CreateParameter(name as String, dbType as <dbTypeEnumeration>)
End Interface
[Code]....
The problem here is what exactly is dbTypeEnumeration. In the example above, it's simply a placeholder to what my problem is. Since we use both Oracle and SQL Server databases, the DbTypes are different depending on the database being used. For Oracle, the OracleClient object has its own OracleDbType enumeration with types. SQL Server also has its own enumeration.
My question is: is it possible to show those database-specific enumerations depending on which repository is injected into the DatabaseService constructor? If not, what's the best way to go about this? I want to separate the two databases, share logic, and allow for future development, ala the interface as a code contract for that development.
Sqlite Getting Date From Datetime That Was Saved As Dbtype.string
Apr 4, 2012When I looked at the database record, the datetime saves like this: 4/6/2012 04:42:28 PM
because I've save it using dbtype.string
Now, I'm getting the date only, not including time, this is my code:
Private Sub getpapererror(ByVal ddate As String)
Dim sqlstr As String = "select * from perror where date(ddate) = $xddate"
Dim sqlcmd As New SQLiteCommand(sqlstr, mycon)
[Code].....
Error System.ArgumentException: No Mapping Exists From DbType Object To A Known SqlDbtype
Aug 22, 2011For no apparent reason, I'm getting an exception on this line in my when the table adapter attempts to fill my dataset.
Me.TblFuelTableAdapter.Fill(Me.CCFuelDataSet.tblFuel)
The error reads:
Quote:
System.ArgumentException: No mapping exists from DbType Object to a known SqlDbtype.
This error just came out-of-the-blue. If I 'Preview' the data though the DataSet directly (using the Fill() query), the data returns fine...
How To Use Common Variables
Jan 12, 2012I am new to .net and I usually had a common file which was having information of username,server,password,IPS and fixed integers in php and asp classic which i used to include in all files so that i could use them in any page. Since I have come to know that .net has no include function. how i can do it in asp.net?
View 3 RepliesAdd Some Common Details In More Than Two Tables
Oct 27, 2010I need to add some common details in more than two tables. [code]So i have stored the Department (from drop down list box) and assigned it to Dept.So i guess dept would have Csc if i choose csc and commerce if i hoose commerce.When I checked with breakpoint it s workin. Datas are added perfectly. But they are not visible in that respective table
View 2 RepliesCommon .vb File For All Projects?
Apr 17, 2011In the old VB, there is a .bas file wherein i place all the global constants there and whenever i create a new project i just include that .bas file so that all the constants i placed are automatically added to my project. Is there any way to do this on VS2008? Ill be doing dozens of Class Libraries that that needs to reference global constants.
1. Is there any other way of referencing the global constants rather than making it a shared variable in a class?
2. Also, is there a way to include a .VB file without the copying it on the local project file? My point being is that this .VB file is also being used by other Class LIbraries that i created.
Common Event For Like Controls?
Aug 28, 2011Is it possible to set up a common event handler for a group of like controls like buttons or text boxes so a single event handler is called regardless of which of the controls is clicked, changed, etc.In my PrinterDialog study project I have 5 text boxes named TB1, TB2, TB3, TB4 and TB5 in a text box array called TBs so they can be accessed with TBs(0), TBs(1), etc.My question is if I can set up a single click event that responds when any of the 5 text boxes are clicked to avoid duplicate code n 5 different click events.
View 1 RepliesGet Common Images For Buttons?
May 25, 2009I know it is not vb question but I was wondering if there is any place to get the common images for buttons (like save, clear, find, new , delete etc...)
View 2 RepliesGet The Data 'less Common As Possible' From A Collection?
May 15, 2011Starting from a table like this:
| Code | Year |
---------------
| A01 | 2001 |
| A01 | 2002 |
| B01 | 2002 |
| C01 | 2003 |
I have to arrive to this:
| Code | Year |
---------------
| A01 | 2001 |
| B01 | 2002 |
| C01 | 2003 |
I have to group the first column (Code) and from the second (Year) I have to get the data 'less common as possible' compared to all the other records. I try to explain this with the example: for the code 'A01' I have 2 years: '2001' and '2002'. I have to take '2001' because it's the one that not recurs in the other records. In the case that there aren't available values 'Year' that not recurs in the other records, it's good to take whatever value.
The data are in the form of array in memory and to interact with them I'm useng some LINQ queries.
Getting Three Most Common Numbers From File?
Feb 16, 2010Essentially, whenever my users who are logged in via a global module level variable enter a new form, their activity is "logged" in a textfile with their UserID as the name.txt and every time they visit a page it adds a new line to their log file with a number corresponding to the form they visited. For example, if they select "add a user" it will add the line "1" to their log file. Note: At the moment there is only 1 2 and 3 not 0.
I have got this far and I have got as far as creating an array which has:
Array(0) = NumberOfTimes 0 appears in the log file
Array(1) = NumberOfTimes 1 appears in the log file
etc etc
Therefore the output for this is
Msgbox(Array(0)) shows "0"
MsgBox(Array(1)) shows "4" for example and lets just say
MsgBox(Array(2)) shows "9" and
MsgBox(Array(3)) shows "1"
Therefore, finally (!) my problem is now finding which 3 are the top. I have tried various methods of sorting them but I just get "9, 4, 1, 0" rather than "2, 1, 3, 0". (By the way the end product for this is to show three links on the "welcome form" of the users 3 most visited forms). Here is a pastebin of all the rubbish I have currently tried that hasn't worked! [URL]
List Of Most Common Errors?
Nov 2, 2009When I was learning QBasic I found a list of most common errors and it told me whether my errors were syntax errors or logic errors. Where I can find a similar list for VB 2008 Express Edition?
View 7 RepliesOne Common Navigation For All Forms?
Feb 15, 2012i made an application using VB.NET 2010. i have 5 forms. i want to know how to make one common navigation (like in a webpage) for this application. Is it possible to have the menu and header static and loads each form in one dynamic container. I hope my questing is clear :P just to make it more cleared, it is more like having a templates in php coding where we can load other page in a particular area without having to reload the entire page with each links.
View 2 RepliesUse A Common _ViewStart In Areas?
Nov 5, 2010In my "root" Views folder, I have a _ViewStart with the following code:
@Code
Layout = "~/Views/Shared/_Layout.vbhtml"
End COde
[code].....
And And If Statements - Only Get UltraRare Or Uncommon Or Common
Mar 27, 2012What I am doing wrong with these And and If statements.
Sub SetRarity()
Dim Subtotal As String
Dim Total As String
[CODE]...
My question is what am I doing wrong I can only get UltraRare or Uncommon or common.
Change Common Dialog Box In Vista/7?
Nov 2, 2009I am looking for a way to modify the default values in windows vista and or 7.
Examples:
* The default directory for the save/save-as dialog box.
* The size of the window.
* The "favorites" list on the left of the box.
I have been looking for a while and the only thing I can find is to edit the group policy but this will only affect programs that are using the xp dialog box.I am sure this is actualy pretty easy but I cannot find anything for the life of me
Combining Processes But Using A Common Module In .NET?
Nov 2, 2010Here is a complicated, but possibly dumb question concerning adding projects together in the IDE in order to increase performance and share memory at the same time.I have written two distinct exe's. The first exe (file processsor) operates using three timers to perform communication between a hardware OEM proprietary ComServer and file output from the second exe. The second exe (work generator) simply outputs files on hard disk so that the "file processor" can process the commands in the order given. The first exe was written as a "background processor" to the second exe in a stand-alone fashion. There is a need to communicate data between the first and second exe that is time sensitive. The ComServer called by the "file processor" only allows one port to for communication to the hardware device that is a USB. The "file processor" is capable of extracting the data required but the existing technologies, such as RPC, IPC are too slow and or full of pitfalls. Microsoft's Memory Manger has found it easier to create multiple instances of the proprietary ComServer and assign the needed memory to the calling routine so that it can "scoot" memory easily in the garbage collection feature of the operating system. What this does is cause the mullitple instances that are created to "gang up" on the device either slowing its performance down, or causing time outs. [The second process is a custom 3-D graphical CAD/CAM. The first process is a machine interface. Although hind-sight is 20-20, it seemed more ideal to write this background or file processor independantly, as then it could communicate with existing as well as a custom CAD/CAMs.]
Simply writing the first processes' code into the second slows down the second process as a result of all the timer interrupts looking for work to do. (Mouse is squirrely, screen refresh is slow, etc.) I am only guessing here that the operating system's service of the more complicated single memory location is somehow interrupted more frequently for a larger project, than two smaller independant projects running seperately. I only know what I observer here. Interestingly, the two smaller projects running seperately seem to run fine.
Now for the dumb question. Is it possible to merge the "file processor" with the "work generator" in the IDE such that each process runs as independantly as two distinct apps, but at the same time, make it possible to share memory via one Module1.vb? So far, I cannot find a way for the "file processor" to see the "work generator's" Module1.vb, regardless of how many PUBLIC statements I issue in the code. In other words, what would be the steps after File->Add-> Existing Project to cause the "file processor" project with a form to start first, then drop to the background, followed by launching of the "work generator" second where each process shares the same Module1.vb?.
If this could be done, say through a compiler statement, or whatever; then this could make the Memory Manger folks happy, and provide for the speed required to operate real world processes? Basic computer science suggests a simple processor LD instruction could make data available to any application within a few clock ticks. Microsoft now longer allows direct memory access, or the ability to carve out a "stay resident" dll in memory where a memory location can be called for quick distribution information to all apps with just one call to a device.
Common Instance Between Multiple Project ?
Jun 28, 2011There are 3 project in vb.net MAIN PROJECT, BLL(Business Logic Layer), DAL(Data Access Layer) now we are trying to maintain one single instance of some values through out the assembly or what we can called single instance should get used in all projects...for example there is a class called clsParameter we need only one instance of this class should get used through out all projects so if i made any change in MAIN PROJECT same values also get updated in BLL or BLL should receive same values....
View 3 RepliesCommon Validator Module For Textbox?
Mar 19, 2011I have started developing in vb.net 2008. I want to make a common module to validate all text boxes of my every win form. Common Validation I'm looking for are Length ( Size ) of text box value must not greater then that of field size, It must be of numeric, or alpha only, It must not be empty, if single quotation mark, covered with double quote mark etc.
View 5 RepliesDirectCast / CType Are Common Function?
Oct 12, 2009Does DirectCast, ctype, etc., are common function? Why it return type, and how do I used it? Is there others function where I need learn to be dot net expert?
View 3 RepliesError Calculating Common Denominators?
Nov 20, 2010This code gives a result of 1 for all numbers and i don't know why. phi(n) for any n in this code give me 1.Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim n As Integer
n = CStr(TextBox1.Text)
Dim phi As Integer
[code].....
Find The Common Parts Of Lists?
Jan 27, 2011Suppose I have two list
list1: {1,2,3,5}
list2: {1,2,2,3,3,4}
I want to get the result list3: {1,2,2,3,3,4,5}
notice the final result contains the common parts between two lists.
Implement Common Method To Forms?
Feb 8, 2011I'd like to implement a common method on most of the forms, but not all.Let's call the method 'FormCleaner'.
I'd like to recursively call each forms FormCleaner method and ignore cases where the form has no such method.[code]...
Import Common Block To Program?
Apr 18, 2009I'm writting a dll in Fortran. I've included some common blocks in the fortran code. And I don't khow how to import it to Visual Basic.
View 2 RepliesMicrosoft Windows Common Controls 5.0?
Mar 3, 2011in: Project->Add Reference
i not have: "Microsoft Windows common Controls 5.0"
What i can do?
Same Program Sharing Common Datafiles?
Dec 15, 2011I'm back to working on my program and need a little advice. I have this program on two computers and I want to set it up to access the same set of datafiles. I want the program to tell it's counterpart on the other computer that it has a certain file open so the other program will not allow that person to access the opened file. The data files are all text files. Without using SQL or outside apps, can this be done thru vb.net?
View 11 RepliesTextblock TextBox Common Interface?
Mar 5, 2010what is the common interface between textblock and textbox when it comes to dela with text stuf?
What I want to do is to create a procedure that accept a textbox or a textblock and change fonts stuff is there a common interface for them that dela with font stuff??
VS2010 Projects With Common Files?
Jun 6, 2012I have a vb.net project that has 2 exe's that get built as well as the installer. The two exe's share a bunch of common files. I do not want to have two copies of the common files or mess around with having build events that copy things around (if possible).My method was to create two projects in the same folder and have them point to the files they needed.This appeared to work until I tried to compile both apps at which point I get an error in a file called Application.Designer.vb. It seems that project files create this file in their folder and when I have two solutions in the same folder they conflict.
View 8 RepliesWinForms - How To Create Common Toolstrip
Jun 13, 2011Can I use tools commonly for all the winforms? How to create common toolstrip?
For example : I have one toolstrip.it has one delete button.
All winform has one datagrid and data comes from differs tables.
Now I want to remove the data from the any datagrid all winforms.