VS 2010 Using An Object Stored As A Tag
Mar 10, 2011
well heres another issue i can't find a solution to. Look at this example
vb.net
Private Sub Button1_Click(sender As Object, _ e As EventArgs) Handles Button1.Click Button1.Tag = LblPlacer.MarginEnd Sub Private Sub Button2_Click(sender As Object, _ e As EventArgs) Handles Button2.Click Button1.Margin = Button1.Tag ' this is wrong huhEnd Sub
so how do i do this? what i am doing is as follows, when button1 is clicked the placer location is stored in button 1's tag property, this placer label is moved elsewhere by modifying its location in some manner. when i click button 2 then button 1 is moved to the location of the placer label when button1 was clicked.
As for solutions this is just an exercise within these constraints, i know i could set a global thickness and use this but i wish for this example to use the Tag Property as although storing onto the tag is easy and examples abound, I have found no examples of what to do with an object in a tag.
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Feb 23, 2009
I am able to get a sql statement to an object. However when attempt to do the same type of code for the stored procedure it does not work.
Public Function ListDMR() As DMRList
Me.Connection()
Dim objALLDMRlist As New DMRList
[code]....
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Jun 2, 2010
Structure MainStruct
Dim Ans1 As String
Dim Ans2 As String
End Structure
[code]....
The question is how can i read back the contents of the list, stored in the Session?I mean something like...
Build = Session("MyData")
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Jun 3, 2011
I's there a way that I can access the properties of all controls stored into my array of object using LINQ.
Public Sub DisAble(Byval ParamArray ctrlCollection() As Object)End Sub That is my sub routine where im trying to reset all controls that will stored into that object of array. But im trying to attain that using LINQ so I wont use any loops to access all of it.
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Feb 17, 2010
After browsing the internet on how to read RDF Triples, the only things i came up with were user created libraries and so on. Some MSDN documentation on Microsoft's website confused me as well, as trying to import the Namespace shown was not possible. (Maybe it's possible just in C#? no idea).So how would someone read an RDF Triple using VB.NET? RDF is an XML format in which data is stored in triples: subject, predicate, object.
Example:
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:dc="http://purl.org/dc/elements/1.1/">[code]....
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Jul 27, 2010
I have the following xml document which would be taken from the web and stored into an XDocument object.
[Code]...
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Feb 8, 2011
I want to learn how to rotate an object by direction and speed and also how to move an object using the arrow keys?
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Jan 18, 2011
I'm using the following code to try and search a listview (I got it from msdn):
Dim atem As New ListViewItem = ListView1.FindItemWithText(TextBox2.Text, True, 0, True)
If atem IsNot Nothing Then
ListView1.TopItem = atem
End If
Then I got the " Object reference not set to an instance of an object" error highlighting the following line: ListView1.TopItem = atem So then I tried this:
Dim atem As New ListViewItem atem = ListView1.FindItemWithText(TextBox2.Text, True, 0, True)
If atem IsNot Nothing Then ListView1.TopItem = atem End If it still isn't working.
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Oct 16, 2011
I am struggling with the following - I try to add a value to a list, where the list is defined in a structure.
[Code]...
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Jun 22, 2012
I get error (Object reference not set to an instance of an object)trying to read a reg key, it stops after the first msgBox which shows MyRegKey value it shows a blank value
Dim MyReg As Microsoft.Win32.RegistryKey = Microsoft.Win32.RegistryKey.OpenRemoteBaseKey(Microsoft.Win32.RegistryHive.CurrentUser, (OldPCTxtBx.Text))
Dim MyRegKey As Microsoft.Win32.RegistryKey
[code]...
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Nov 18, 2011
I have a treeview with a contextmenu. I'm trying to disbable specific items in the contextmenu when the user doesn't have a node clicked, but each try gives me the same error: "Object reference not set to an instance of an object."I tried several methods in the Mouse_Down-event (IsSelected, etc), this was my last:
If .Nodes.Count > 0 Then
If .SelectedNode.Text <> "" Then ' <<< this line is highlighted
enable_expl_mnu() ' enable the contextmenu
[code]....
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Jul 9, 2010
I get the error, Object reference not set to an instance of an object., on:
vb
For Each comboItem As String In My.Settings.ComboBox1
That code is in:
vb
Private Sub Me_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Me.Load
For Each comboItem As String In My.Settings.ComboBox1
[code]....
I am trying to get it to load those settings when the program loads up, VS does not report that program till i attempt to run in debug. Before the program is even loaded that happens.
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Mar 14, 2012
I've created two Forms of which second one is opened with ButtonClick event with statement: Form2.Show(). Everything worked great until I declared some variables directly under Public Class Form2 (actually they are inputs in TextBoxes of a user which are placed on Form2). Error is: InvalidOperationException was unhandled - Object reference not set to an instance of an object.
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Jan 4, 2012
i got a html to pdf conversion source using the opensource itextsharp library from the[URL]..I copied the code exactly in vb.net 2010 after referencing the library and it gives the 'Object reference not set to an instance of an object' error in the bold line... couldnt find a solution to it..
[Code]...
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Aug 7, 2011
I have a database (mysql) to which I connect, I have a column in the database (the images) that I view as a grid that is in the datagridview autoimplementa. BUT THE IMAGES ARE STORED AS A URL.
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Aug 1, 2011
I am making a little application to provide a simple GUI for editing controls for some old games that use INI files to store their config.I have just come across the following ini file key but I can't see how it is storing the controls. It is meant to be for an NES pad, which has 8 buttons - Up, Down, Left, Right, Start, Select, A, B.
Quote:
[Controller 1]
Keys=C800D000CB00CD002D002C000000000036001C00000000000000000000000000000000000000000000000
[code].....
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May 22, 2011
I have a Problem Creating a stored Procedure I keep getting an Error Message saying
Incorrect syntax near '@BFDateTimePicker',Must declare the scalar variable "@BfDateTimePicker",
Must declare the scalar variable "@Date_Time_Taken". what is wrong with my code. I have looked at video and other code to no avail
[Code]...
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May 15, 2012
trying to writ stored proceduer in vb.net but did not accept save it ,, it gave me msgbox error :Incorrect syntax near the keyword 'AS'.ALTER PROCEDURE dbo.StoredProcedure2
@para1 varchar(5),
AS
INSERT INTO Table1
SELECT test1, test2 From Table2
WHERE test3 = @para1
RETURN
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May 11, 2010
I have a stored procedure that keeps timing out even though I have set the connection timeout set to 10000. The code that runs the stored procedure is this...
ADFConn1 = New System.Data.SqlClient.SqlConnection("Data Source=STPISSQ01ADF;Initial Catalog=ADF;User Id=ADFXXXXX;Password=XXXXXX;Persist Security Info=True;connect timeout=10000;packet size=4096")
[code].....
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Oct 5, 2010
In .NET, integer data type is a value type(stack) and String is a reference type(heap). So If a class A has an integer, and a string type object in it, and a class B creates an object of class A, then how will this object of class A be stored in memory? In stack, or in a heap? This was asked in my Microsoft interview. Need to understand how I fared.
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Nov 28, 2011
In my desktop, I have folder containing some word document files. I want the filenames of the documents in that folder. So, I used:
Dim strFiles() As String = IO.Directory.GetFiles("X:Documents and SettingsXXXDesktopvvvvv", "*.doc")
All filenames are stored in that array. But it would also include the temp document that Word generates. I am somewhat confused on how to remove this from array. I only need full filenames of the actual documents, which excludes the temp document.
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May 2, 2012
VB Imports System.Data.SqlClient Public Class frmMain
[Code]...
I have three ways of adding parameters to my query commented out above. The all seem to return 1781 records (which is all of the records) and will not filter out to what the UserName variable equals which should reduce it to 32 rows.
I use a Console.WriteLine to show that the UserName is indeed my username. But it seems to not be getting passed to the query properly. I tested the Stored Procedure before even starting in on the program, so I know it functions properly. I just don't know what I'm missing from a VB.NET perspective to get the same results into my DataTable.
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Jun 13, 2011
Need to design a program that can encrypt and decrypt messages stored in simple text files using a private key stored in a separate file. Software should also be able to allow the users to enter simple messages that either displays the encrypted or decrypted message. The encryption method should use a simple substitution method. It should be set out in the following format:
Example (the "@" is the separator):
@
The character The Code End of line
A @ 4gh EOL
B @ 84!9 EOL
Has to use the 256 ASCII character codes. The separator will be used to separate the character and its corresponding code.Here are the pseudocodes I have come up with:
� Read any private key file
separator = readline(file);
while not EOF(file) do
tempStr = readline(file);
[code].....
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Apr 13, 2012
I have tried to run below macro in excel 2010, but the error pop up and after press debug button, the line "expected_loss = application.worksheetfunction.average(final_loss)" was highlighted. May I know how to solve this problem?
Sub test ()
'Aim: to store data in array and calculate the average of the data in the array
Dim final_loss(1 to 70000) as double
[code].....
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Feb 1, 2012
on a new project - windows form app i would like to bring a simple stored procedure from a server ( with credentials ) with one parameter.
the stored procedure is on the : "SERVER" "database" "sa" "sa" and it looks like this:
sql
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
[Code]....
also if i could select the client name from a drop down list would be verry nice. the select for the name is : "select name from clients"
The results could be exported into excel or a screen. ( after selecting the client in the form , another button for export )
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Mar 4, 2011
Everything I read points me that I'm writing the following code correct, but VS keeps telling me : Object reference not set to an instance of an object.
[Code]...
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Apr 25, 2011
I have a class that has a property that I declare like this:
VB.NET
Private _DirectoryList As List(Of FileDirectoryInfo) ''' <summary> ''' Array of directories. ''' </summary> ''' <value>Object</value> ''' <returns>Directory array list</returns> ''' <remarks>N/A</remarks> Public Property Directory As List(Of FileDirectoryInfo) Get Return _DirectoryList End Get Set(ByVal value As List(Of FileDirectoryInfo)) _DirectoryList = value End Set End Property
[Code]...
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Jul 31, 2011
I trying to make a forum autologin with this code but I get this error "{"Object reference not set to an instance of an object."}" when the program visit a page with a diferent script. is it possible? skip these pages with different scripts and only log into websites such as phpBB. This is de code,
[Code]...
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Aug 11, 2011
I am using VB.Net 2010 and calling a stored procedure with a dataset to get values in a table plus "created" values.
The values for the "created" values do not come across from the stored procedure. They all show as zero in the IDE and False for the variables. I know I am getting the record because the first five values come across from the stored procedure into the variables correctly.
When I step through a VB6 program using ADO the values are pulled across from the stored procedure.
The problem seems to be in the interface between a dataset and "created" fields in a stored procedure.[code]...
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Jan 25, 2011
For I = 0 To 10
If Items.Count = 0 Then Exit For
Dim T As New Thread(AddressOf Thread)
T.Start(New Object() {"Test", "Test"})
[code]....
When I put same code in empty project it works.
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