.net - Make Out The Mistake(s) That Disallowed The Retrieval Of Records?
Jan 1, 2012
I know there are tools available to rectify this, but somehow i cannot make out the mistake(s) that disallowed the retrieval of records, despite 2 hours of trying and referencing.
[code]...
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Jun 3, 2010
Asc() function returns incorrect result?
Dim TestChar = Chr(128) Dim CharInt = Asc(TestChar) ' this is a mistake on Windows 7 x64. Asc(TestChar) returns 136 instead of 128
I executed this code on another computer and the result was 128.
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Aug 4, 2010
I copied the following code from a book that helps to create a serviced component is a solution called SyncDemo in VS2005 with an application project called ClienteSyncDemo and with other class library project The code of the form ClienteSyncDemo is the following Public Class Ejecutar Private Sub btnEjecutar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEjecutar.Click
[Code]...
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Jan 26, 2010
In asp.net 2.0 I have several "dropdowns" defined using generics (examples eye color, hair color, etc). The fields are all typical; id, text, etc. All are defined as their own classes which must implement an interface I created called ILookup. However, when I try to return a List<> of this class using:[code]
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Aug 2, 2011
I have designed a complaints form for my work (free of charge just for my cv). I designed the form for the resolution 1280 x 1024. My problem is when a user with a smaller resolution say 800 x 600 uses it. The form will be out of sync with the screen as shown below (tested on my on computer). So I am wondering is there a way to test the screen size of the users computer then readjust the size of my controls according to the size of the screen. By the way all of my controls are anchored so that they stay in the same place.
[Code]...
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Oct 12, 2009
Compact framework)As I said previous I thought I would dabble in c# for my new project, and as I thought its turning out to be a nightmare I created this control in VB and now I'm porting it to c#.
In my control I have a PageListCollection (Similar to Listviews ListViewCollection)
[Code]...
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Mar 25, 2010
1. I need to pull some data from a text file separated by a space and put it in a drop down, the first value is supposed to be the text and the second value (separated by a space) is the value of the selection. I think I need to use an array and a System.Net.WebClient. How do I approach this?
2. I want to display some data from a text file into a gridview, so using datagridview, but I want them to be able to enable and disable a checkbox in these rows (using a listview?)
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Jun 21, 2010
is there anyway to retrieve and list all the attributes for an active directory user to be used for updating with using the following
de.properties.contains(propertyName)
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May 9, 2011
I want to retreive customer information from microsoft sql server database using just his/her user id onto a web form.
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Feb 16, 2011
I have created a working report, included a sub-report that is linked to another RDLC file in the same project.The sub report fails to load with : Data retrieval failed for the subreport, 'Subreport1', located at: WML_WS.MediaCur.rdlc. Please check the log files for more information.My question is, where are the 'log files'.I have the following code:
ublic Class frmProofSheet
Public Property Caption() As String
Public Property BookingNo() As String[code]....
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Jul 7, 2011
I have the following snippet:
liNoSheets = My.Resources.NoSheets
ReDim lsSheetName(liNoSheets - 1)
lsSheetName(0) = My.Resources.Sheet1Name
[Code].....
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Jan 26, 2010
I am trying to retrieve mails from my mail account which is working, but I'm facing two problems
1. Text mail (No-attachments) appear correctly but they include some characters like "=20" , I don't Know if there problem is in the Encoding.
2. Mails With attachments appear in a very strange format, So I don't know if there's anyway to get the attachment itself Function to Retrieve Message:
HTML
Function GetMessage(ByVal msgindex As Integer) As String
Dim tmpString As String
Dim Data As String
[code]....
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Aug 16, 2010
I have been doing some research to determine an efficient and secure way to pass a document located on another server in the network to our web server and then on to the intranet user that requested it. While I have found plenty of ways to do this, I am not that experienced with this scenario as I have always just served documents stored locally on the web server and located nowhere else.
Our document server is shared in the domain and everyone has access to it and depending on their permissions, can access many files. I was thinking that I could possibly grab a file if I could pass the intranet users credentials but I don't know where to look to do that.
I was also thinking that maybe a webservice could do what I need but that just doesn't seem right to me because I am kinda guessing that there is already a .net library available that already handles something like this but am unsure as to what it is.
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Aug 28, 2009
OK, so I've been trying to look into a webservice.I'm not really sure what is going on with them.I haven't been able to find anything that really explains what the purpose and reason for them are. I suppose maybe that is because they can serve many purposes?
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Aug 31, 2009
First off I am fairly new to VB .net however I have had some success in my project so far. I am creating a simple envelope accounting program for personal use. So far I have some basic forms created and have my class defined and a few methods for calculating my balances as well as changing the property data I want to work with. I now want to take this property data and save it to an xml file that I can easily retrieve the data into another form and save for later.
Here is a screen shot of the form used to gather the property data for my class
Here's the class code:
Public Class EnvelopeSystem
#Region "Identification"
Private eUsername As String = ""
Public Property Username() As String
[CODE]...
I am looking for advice on how to get this to xml the most efficient way possible. Also if there are any blatant errors or easier ways to code what I already have I am still very new at this and would be glad to see easier more efficient ways of coding.
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Dec 15, 2011
I am using vb.net and sql server 2005 as backend. I have a search form in which a field called billno is searched and all details are displayed in datagridview but the problem is I have to restart the project every now and then. Whenever any entry is done in database the immediate form opens is the search form so it must display the data which was inserted immediately without restarting the project.
For inserting data I am using the following code:
if TextBox1.Text = "" Or TextBox2.Text = "" Or TextBox3.Text = "" Or TextBox7.Text = "" Or TextBox11.Text = "" Or TextBox12.Text = "" Or TextBox13.Text = "" Or DateTimePicker1.Text = "" Then ErrorProvider1.SetError(TextBox1, "Enter Proper Details")
ErrorProvider2.SetError(TextBox2, "Enter Proper Details")
[Code] .....
Second problem is have a print form in a particular format but the data retrieval in textboxes is not happening actally i dont know what to do. What would be the code for data retrieval from database into their respective textboxes?
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Dec 21, 2010
How can I make the record save (like on access - it can be saved and from the main screen you can choose the job (Im basing this off the access free file "customer service")
Im essentially re creating that but on vb.net as I prefer to use vb.net as it is slightly easier for me.
My question is how can I make it save the record both as a file and on the main page so that the employee can go through the jobs (or search for the job), choose which job, open it and see the form saved with all the information still on it - yet still editable.
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Dec 30, 2008
I have an assignment where I have to design an information retrevial system for estate agents. I have to be able to view the houses for sale, and delete them when there sold. I am new to vb script: Opens the Policy Details file and reads in the
'== records into the arrays (parameters) which are
'== passed back to the calling routine for
'== processing.
'== N.B. Use Sub SavePolicyDetails(...) to write
'==the data back to the file.
[Code] .....
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Feb 8, 2011
Iv just started using a winsock control in VS 2010.
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
sckListen.Listen()
sckConnect.Connect(sckListen.LocalIP, sckListen.LocalPort)
[code]....
On data retrieval, it comes out as number instead of text. Im guessing ASCII?Why is it doing this? Do I need to convert each ASCII number into a character?
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Jun 9, 2011
i have use below code to make sure the listview only contain 3 record n if more than 3 records to prompt error message and disable the NEXT TRANSACTION button. it works well. But the problem is when i delete 1 record out of 3 it suppose enable the NEXT TRANSACTION button but the button is still disable. whats wrong with my code.
[Code]...
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Dec 16, 2011
I'm opening this discussion up primarily because I felt that it was inappropriate that Samir Ibrahim and I had hijacked another thread by turning it into a collaborative development thread. This thread will also hopefully serve as a searchable reference for those few who actually make an attempt to search the forum for information before posting a question. For reference the original thread I mentioned is [URL]
This thread is meant to be a repository for our continued collaboration on trying to find a way to update the attachment field using the OLEDB class. Samir believes that he is close to cracking the secret code.:)
Attachment retrieval and updating is a fairly trivial task using the Microsoft Access Database Engine. It is also fairly trival to retrieve the attached files using OLEDb as well. The difficulty comes when trying to add or delete an attachment with OLEDB.
The attachment field is actually a record set where each record consists of six fields. One of these fields is the data field that contains the binary file data. According to the documentation, Access will compress certain file. It appears that compression/decompression is handled behind the scenes so to say and what you are present with is sequence of bytes. The data field consists of sequence of header bytes followed by the actual data. The first four bytes define an offset to the start of the data. One thing that we are trying to determine is the meaning of other bytes in the header.
I have uploaded a sample project at: [URL]
This project is by no means a finished product. It is hard code to retrieve the first record from the included Access database.
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Jan 12, 2012
In my first attempt to create a Class that contains something useful (if you will), I am a little lost what a sound way to proceed is. I am trying to make a table that has fields and records. Perhaps imagine a tiny spreadsheet. So, I create my Class. Properties might include the number of columns, the column titles, and the number of rows or records. I then think the thing to do is create a couple of structures to be used within the class. Thus far I have this:
Imports System.Console
Public Class ConsoleTable
Property NumberofCOlumns As Int32
[Code]....
Problems I am creating in my mind include:
1) In the Field Structure, could I make the FieldValue so that I can change the data type? Meaning sometimes I want an instance of a Field to hold a string,or an integer, or a decimal.
2) In the Record structure, for any given instance of one I don't know the number of fields it will hold until I create the new instance. I tried Public RecordFields(FieldCount) As Field in the Structure, but that's not allowed.
I then used Public RecordFields() As Field, and then in my code used the ReDim method. Is there a better way?
3) With the Table Class, same problem. The number of records within any instance of the class needs to be dynamic.
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Jun 6, 2011
i have the following function to update my database:
Public Function Alterar(ByVal registro As Bancos) As Boolean
Dim Key As EntityKey
Dim OriginalEntity As Object = ""
[code]....
i want create a change log, to do this, i need pick up every records changed and insert it in other table to make a log.How can i pick up this changes?
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Feb 2, 2012
I'm trying to make a program that takes my old records from Access and moves them to MySQL. Its supposed to take records from 3 different tables in Access to 3 different tables in MySQL. The first table is "Orders" and it sorts the ones to pull to the dataset, taxDS, by "Where Status = 'Waiting Payment' OR 'Cancelled'". Then the second table pulls its info(this is where i'm having trouble) by the "Control_Number" in the "Orders" table, so basically if the control number isnt already in the dataset its not going to pull the data into the new table "FNF Taxes".
Imports System.Data.OleDb
Imports MySql.Data.MySqlClient
Public Class Backup
[code]....
So now after my 3rd edit and no answers, I'm finally at the point where I'm only stuck on my For..Next statement not working, How can i get this statement to run for each 24,000 controlnumbers?
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Sep 17, 2011
I have widows7 on my dell notebook than tried to make my personal program on vb 2008
I wand to make program that i can input data and update, delete records from access7
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May 17, 2006
I can retrieve records from my Database fine, but I'm having trouble updating records. I am getting a syntax error on [code] I get this error when I change the Last Name (Row 0, Column 1). [code]
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May 1, 2011
Im trying to get a list of all the text files present (there file paths) in a certain folder (lets say C:\Users\podypodpod\Desktop\textfiles) and then add them to the list box (lb_Entrys)
ive manage to find this code to get all text files from the desktop , but i cant manage to edit it so i can give an actual filepath for it to search
CODE:
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Oct 27, 2009
how to get records into oracle database delete from db & update the records i have successfully connected my vb 2008 win form with oracle 10g.
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Dec 29, 2011
How do I update records in a dataset with records in a transaction file?
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Feb 9, 2010
I want to search the records from the textbox and display the records to the datagridview, if there are no records, just display empty on the datagridview.
this is not working:
Dim sqlsearch As String
sqlsearch = "SELECT * FROM setting WHERE mname LIKE '%" & TextBox.Text
[code].....
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