Unable To Use Values Extracted From Database As Variables In File Creation
May 22, 2009
I have written a web page which connects to a database and then display 3 values from a management reporting system using the database.
I am accessing a database using the following code:
<asp:SqlDataSource ID="SqlToVersion" runat="server"
ConnectionString="<%$ ConnectionStrings:WebImportOnServer %>"
SelectCommand="SELECT [VerNo], [PeriodName], [PeriodNo] FROM [atblVersion]"
[Code].....
but it is how to replace the question marks with valid code that takes the values from the bound fields that I am stuck with.
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Feb 17, 2011
I have a dataview and want to update using a stored procdure. My Update procedure is as follows. When I have a watch on my variables (int & amt) it is reading empty string even though I pass values. Yes cell(1) is my ID coumn and cell(8) is my amt coulmn
Protected
Sub GrdResult_RowUpdating(ByVal
sender As
[code].....
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Feb 24, 2011
The below code is suppose to create a database and a table with a column "FirstName" which is assigned a value "James"
Imports System.Data.SQLite
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
But for some reason the app only creates a a database which has a size of 0 bytes. Why is it not working . I am using I am using SQLite ADO.NET Provider. , VS 2010, Winforms
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Feb 17, 2011
It is saved on my desktop for easy access.I can close the program. I can click the solution to open it right back up, no problems.I then zip my file (also to the desktop)
My problem: I moved the original file (Project A) to another folder and extracted the unzipped Project A onto the desktop. When I open the new Project A's solution file, nothing happens besides VB starting up. It doesn't show me anything.
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Mar 24, 2012
i am using this code to uzip a file: [code] i am trying to figure out how to get the name of the file that was extracted so i can use it in my program. Can I do that using .FastZip?
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Jan 5, 2012
I am using vb.net with phpMyAdmin MySql database. While running the piece of code below, the program hangs in the for loop before the variables are assigned values from the data table(dt)...
'Check for appraisal period-----------------------------------------------------------------------
Dim sqlCheckDate As String = "SELECT * FROM tblappraisalsetting where appSetID=(select max(appSetID) from tblappraisalsetting);"
[CODE]................
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Feb 1, 2011
i am working on pdf to xhtml conversion pdf clown library(C#).I am extracting the pdf content,the images which i extracted is inverted image.I want the real images,The code is pasted below,
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;[code]......
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Sep 8, 2009
I have been on MSDN about this and searched but it's not quite telling me what I'm after. I've extracted a list of file names from an Excel spreadsheet and want to check whether they all exist in a directory which a user can select in a text box. It feels like I'm nearly there with it but currently my listbox is displaying everything, I want it to just show the files that are missing. I'm a beginner so I'm not exactly sure if I'm even telling it to compare the two things properly, I've tried a couple of ways of checking if a file exists but neither seem to work.[code]
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Aug 30, 2011
An exert from my config file looks liek this.
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
[Code].....
EDIT: I am able to pass in the string perfectly when using Visual Studio 2005. But when using VS 2003 and a loiwer .net framework it will not let me, unless I hard code it in.
Could something be enabled/disabled on one of these instances of VS? Or could this just be an error with the older versions of .net? I think I am using 1.1??(will have to check) in 2003.
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Oct 20, 2011
I cannot able to delete the database file. File also not in use.[code]...
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Mar 16, 2009
,i write a simple program in vb.net 2005everything is ok when i run the program in solution, but problem appears when i run the program from bin eleasemyprogram.exethe error message is :'..bin eleasedbx.mdb' is not a valid path. make sure that the path is spelled correctly and that you are connected to the server on which the file residesi dont have a clue about what mistakes i did..
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Apr 19, 2010
I want to create a new DB2 Databse When My Application Start First Time tell me the solution for this.i have create database command but it can't run.
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Oct 24, 2011
I have one test class which having few variables declared in the header of the class where it will be accessed for all the subroutines and functions in the class. Here's the sample of my declaration:
Private m_dblMaxPwrLimit As Double
Private m_dblMaxPower As Double
Private m_intHalfPwrIndex As Short
Private m_intMaxPwrIndex As Short
After that, I have one Private Function which need to access some of the variables declare in above. Part of my function is show as below:
Private Function GetPmaxIndex(ByVal Serial As Short) As Boolean
Dim i As Short
Dim Total As Short
[code]....
The problem is when I step into the line of m_dblMaxPower and m_intMaxPwrIndex, I can't see the value of these variables which is suppose I can see it as in VB6. Additionally, when I put Add Watch for these variables, it showed 'unable to evaluate expression'. I guess it is not being used and I think something is wrong with my declaration but I do not how should I declare it corretly because as for VB6, we can declare all the variables in the header of the class and we can use it for all the subroutine/function within the class.
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Nov 25, 2010
I have create a Stored procedure which is creates the Streaming Data Base.This SP needs to have the path on which will put the mdf files (and some other things).Until now i was run this procedure after i first create the above mentioned path.Now i want to run the same procedure without interference in the server.So I give the following path in order the procedure to execut it and understand where i want to give the path guide.
\ServerNameSharedFolderNameSQL
The stored procedure takes the path and tries to go to the folder of 'SQL' in order to do her job.But in this point i receive an error which says:CREATE DATABASE failed. Some file names listed could not be created, Check related errors.
-I'm Cheking the way of puting the path and it is absolutelly right, I mean accepted from the server machine and from the client machine as well.
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Dec 28, 2010
I am new to ADO.Net and I mistakenly using the dataset as how we use recordsets in ADO., I know that it is possible to create a Datatable which will only reside in the memory and hold data. What I need to create is like this.
1. Create Datatable.
2. Fill it with sample data at least 3 lines.
3. Transfer the data from datatable to database (access,sqlsrvr etc).
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Dec 30, 2011
In the past I've used this code to create a database at runtime :-
Dim Cat As New Catalog
Dim Cn As New ADODB.Connection
Dim objTable As New ADOX.Table
[code].....
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May 23, 2009
sql = "CREATE TABLE tblPrograms ([index] Counter," & _
"[lngPlatformFK] TEXT(255) NOT NULL," & _
"[strCompany] TEXT(255)," & _
"[strProgramName] TEXT(255) NOT NULL," & _
[Code].....
When running the previous sql query i am getting a syntax error. This database is a access 2003 database using the Jet 4.0 OleDB driver.
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Apr 16, 2009
I have found many pages referring to having the date be part of a txt file being created, but not like the way I need. Having said that, this is what I've got.. [code] I read a page on working with txt files and learned what I could from it. It said to use the method in the beginning of my code for creating the file. It works great, but I would like to have a new file name everday, hence the date being integrated. So even if program was running, when midnight hits, a new txt file is created and new entries are written to that file. But I can't even get the date to be put in there. Everytime I try to make this work by using methods I read about in other pages, I get a syntax error, or a warning saying an end of statement is expected. I'm not sure those methods are compatible with what I've already got going.I was actually trying to store these values in a database, and I got real close I think, but I couldn't get any help to fix my problem so I'm trying to write to daily txt files instead. url....
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Sep 27, 2011
I have a files list which contain the directory of file. I want to know file creation date of that files. I used fileInof.CreationTime. But It is not displayed creation date. How I can know about this.
[Code]...
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Apr 19, 2011
how can i write <p> <br/> hello this is my creation </p> in xml file while i am creating it by the use of asp.net .
it is showing <P> text </P>
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Mar 6, 2010
i wants to create an dll (classlibrary) file for displaying selected data form database by using a gridview control.for this iam creating an dll file , in that how to declare gridview1 [code]
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May 17, 2010
I'm trying to make my application append to a simple log file when it executed and when it's closed. So far, so good (see code)
However, what I would like to do, is have future lines of text to be written on the next line instead of the same line. And possibly a date stamp.
I'm not quite sure how to implement this as far as syntax goes.
My.Computer.FileSystem.WriteAllText("C:log.txt", "Application was closed ", True)
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Apr 29, 2009
I'm trying to save a files save date, modify that file and then restore the file back to it's original date. I can't get it to work, I've tried it several ways and cannot get it to work.
My code so far is
origdate = My.Computer.FileSystem.GetFileInfo("inspection").L astWriteTime.ToShortDateString()
' changing file content here
System.IO.File.SetLastAccessTime("inspection", origdate)
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Apr 15, 2010
How can I check for characters not allowed for file creation programmatically? you know like the / <> and so.
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Aug 4, 2010
be able to check if an application i am writing has been run on a week by week basis. i have created a button that when pressed creates a text file with nothing in it, i can read back the date it was created which also gives me the time which i dont need, i then need to compare the date the file was created to see if it is older than 6 days if so delete the file. how can i check to see if a creation date is older than six days???
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Apr 28, 2011
I create a vs 2005 project and a sdf file using ms sql server express 2005. And I try to connect it in MC65. I got this error The database file has been created by an earlier version of SQL Server Compact. Please upgrade using SqlCeEngine.Upgrade() method.
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Aug 20, 2009
Im looking to create a thumbnail from a jpg image. the image is stored in c: empimage.jpg all im trying to do is create a thumbnail from this and save it in c: emp humbimage.jpg. Ive found a number of C# tutorials and some vb.net ones. Apparently this is a really easy thing to do.
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Dec 15, 2010
I am building VB.NET application that takes data from text files that are exported from a legacy DOS program. These are written to a datatable and displayed in a datagridview. Right now my code simply loops through the datagridview and inserts the data into the database (SQL Server). There is a requirement now that the client number must be checked before the insert to see if it exists in the database. If it does, then the value of one field (tax rate) is checked against the value of the field in the datagridview. If there is a difference, then the rate is to be updated in the database and the data that was in the database is to be written to a history table for audit purposes. If the client number is not there, then we are to do the insert (which is already written). I want to know what is the most elegant and efficient solution for this problem.
I need to compare what is in the database table with what is in the datagridview, update the history table for records that exist, and then insert new records.
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Feb 21, 2010
I would I have a program that I use in the computer in my network, but for every user I need to edit the source to this user, thus the user cannot edit his information, just use the program how it was ... So, looking over the internet I found a "program" that may contains my solution... Its a Keylloger, I'm not meaning use this keylogger, no, but it has a a very interest feature: I use the main form to edit the information then after all it create a new program with the new information inside... I use my main program to create every userprofile then my program create a new program with the profile inside...
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Sep 30, 2011
I am writing my data to an Excel file. I have two functions, create excel file and close excel file. When I am creating the first excel file, everything works fine, but creating another one after the first has been closen, I am getting an "NullReferenceException" exception.
Dim xl As New Excel.Application
Dim wkb As Excel.Workbook
Dim wks As Excel.Worksheet
[Code]....
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