Modify Object At Run Time?
Dec 15, 2011
how can i modify my object at run time? I have a form containing two panels; textbox, picturebox, and a label are in the panel1 where as panel2 is likely to be the user screen.. User drag the textbox from panel1 to panel2 and it is added there.. Now, i want to provide the facility to the user to modify the size using mouse similarly as we use to modify using mouse while making our forms.. It is like re sizing the button or picturebox at run time.
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Mar 16, 2012
i have difficulties in making school schedule time and school bell? how to modify time span in comparing more than 40's variables time.
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Mar 28, 2012
I wish to populate a datagrid from a data source using parameters specified by the user. I have successfully achieved this by using the TableAdapter.Fill method with VB in VS 2010 Express. However, the potential permutation of parameters is becoming too large to have a separate Fill method for every possible combination. Ideally I would like to construct the SQL SELECT statement at run time to reflect the user's options. Can the Fill select command be set at run time, and if so, how? I only need to build the WHERE clause, and the query is read only.
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Jul 13, 2010
I have a gridview with 3 columns, only one column is going to be edited by the user. Whenever it is edited I'd like to set one of the other columns to the current time. A "time last updated" if you will.
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Nov 5, 2010
I need example code or even a 3rd party object that will allow me to get to an excel object embedded in a word doc. I have already tried Aspose and they do not have the capabilities yet. Has anyone done it or do you know of a 3rd party object that will?
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May 29, 2011
modify code to insert the data to MS SQL and save changes when click save button for the second time?
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May 31, 2012
I thought I postet this yesterday but I can't find my thread so if this is a duplicate please point me at the original one. Background: I need to create a user account and Modify it's registry before the user logs on the first time. Creating the account is done by using the Winnt provider (works great). To create the profile I'm trying to use Process.start to launch a process as the newly created user. With the use of loaduserprofile property the users profile gets created and i can do my regwrites without problem.
[Code]...
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Feb 3, 2009
I want to allow my user to add certain small pictures into a form which has a bigger pictures. My idea is to simply allow the user to move small pictureboxes that is set on the top of the form to wherever she wants it to be. My problem is that she may want more than one instance of the same picturebox. I am wondering if I can create a picturebox (complete with the picture) during run time?
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Sep 29, 2011
Private Sub MyXbeeZB_XbeeZBIODataSampleRxIndicatorEvent() Handles MyXbeeZB.XbeeZBIODataSampleRxIndicatorEvent
Dim MachineNumber As Integer
For j = 0 To i - 1
If MyXbeeZB.XbeeAddress64 = XbeeAddress64Array(j) Then
[code]....
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Jul 15, 2011
I'm subtracting hours from a date object like so:
startDate.AddHours(-7.0)
endDate.AddHours(-7.0)
However It doesnt seem to affect the day of the object. My question is this, when subtracting hours from the object does it subtract it from the global date? I.e make "May 7, 2011 1:00:00 AM" into "May 6, 2011 6:00:00 PM" when subtracting 7 hours or does it just affect the hours of the object?
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Feb 7, 2010
Every time that I want to make a thread in the ThreadPool I make a stupid little function like Worker_O below.[code]...
Is there a way in VB .net to cast from Sub(i as integer) to Sub(o as object) without making Worker_O? Worker_O is ugly to me.
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Sep 22, 2011
hey guys i need a code that shows me how to make program create an object in run-time...(if this line is clear enough dont read next cause i did even confuse what i want)
the best example i found is dividing procedures..lets assume i did a calculator which also can show the calculating in a picture....when a user use dividing a line has to appear between two numbers(like: ___) and how can i create that line in run-time...
. i was using visible property to do that but when theres a lot possiblities ... its easy to that in run time but i dont know how..
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Jan 9, 2012
I havn't got any test code for this, as i dont know what way i am going to approach this yet.
at the moment i have a groupbox on a form with 3 radio buttons.
what i would like to happen is when a radio button is selected for it to display a panel with a few controls on it.
i am looking to know what is the best way to code this, i have read a few guides on creating objects at runtime, but none of which i have looked at have any information on adding objects to the likes of a panel.
i am thinking that their are probbably 2 way to attempt this.
my logical thinking tells me i should either
1) Create a class will contain the controls and subs that i need and then try to load the class when it is needed.
2)create a control array then try and work with it that way.
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Feb 27, 2012
I have a string variable that contains "19:39:43", I would like to convert that to a date object. When I try I get a formatexception was unhandled error during debugging. I want to convert it to format of hours:minutes:seconds but cannot see how this can be done..
Code snippet:
Dim strtxt As String = "19:39:43"
Dim Datevar As Date = Date.ParseExact(strtxt, "HH:mm:ss tt", Globalization.CultureInfo.CurrentCulture)
I tried just "HH:mm:ss" but not sure if that worked...
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Aug 3, 2011
i want to save the value of date time picker control object to mysql but it kept saying error.the code perfectly works for text box values but it doesn't work for date time picker control.
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Sep 6, 2007
I am getting a run-time error within my VB app:
Run-time error '429': ActiveX component can't create object
I have run this application under WinXP and previous Windows operating system fine, but when I installed my application on Windows Vista I get the above error at run-time.
how I could resolve this error as I believe it is not a programming error as the app works on other Windows OS's fine. Could it be something to do with registering dll's etc.
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Feb 1, 2012
I am getting a run-time error within my VB app: Run-time error '429': ActiveX component can't create object. It goes away after IIS reset.
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Jun 16, 2010
I'm looking for a way to convert a 5 character time representation to a date object. ie. "0937a" should be "6/16/2010 9:37 AM" or "1215p" should be "6/16/2010 12:15 PM".
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Feb 7, 2011
I am looking for assistance writing code, (VB 05), that would cause an object, (like a circle on screen), to get larger and smaller over preset periods of time, (about ten second increments).
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Jul 14, 2009
Run-time error '5200' Method 'endMessage' of object 'ISoapConnector' failed
Dim Serializer As SoapSerializer
Dim Connector As SoapConnector
Dim Reader As SoapReader
Set Connector = New HttpConnector
[code]....
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Feb 17, 2010
Im doing my first project with WinForms, and Im trying to get the DataBinding working. Theres no database in my project, but I'd like to bind some of the TextBoxes to objects' properties. In the other section of this forum (here) I found this line of C# code which does it: textBox2.DataBindings.Add(new Binding("Text", this.myPerson, "LastName"));
my question is can data binding to object properties be set up during design time (without writing code)? If so, how? P.S. I know how I would set up this binding if in WPF, but I'm forced to use WinForms.
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Jun 3, 2009
Source File: MathNet.dll
Output file: MathNet.tlb
Included Classes MathNet.Division and MathNet.Multiplication
[code].....
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Sep 6, 2009
I have an ASP.NET application with a SQL Server back end. I am storing all my dates in UTC format and doing the appropriate conversions to the local time zone of the browser viewing it. One of the pages asks for a start date and end date (no times).
I am taking the start date and setting the time to 00:00:00 hours (midnight) and I'm taking the End time and adding a time of 23:59:59, so that the date range covers the whole day. Now what I'm trying to do is do a SQL query to do a search for records in this date range. The problem is, the data in SQL is in UTC time and the user is typing their dates and times in their local date and times. My quickest solution was to convert the date and time to UTC, then search the records. However, by doing this, I am to believe ASP.NET converts the given time and date to UTC based on the server time zone. How can I convert a date and time to UTC time based on the time zone of the user?
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Dec 14, 2011
I have a generic Class I'm using to hold information loaded from a database.I have a method which takes a DataRow as an argument, uses the object's known column name and extracts the data from the DataRow, such that:Dim loadData As T = CType(myDataRow("myColumnName"), T))works as my default assignment in most cases.Unfortunately, due to some horrifying design constraints, some of my columns may be null, and may also be taken from enumerations.This means that when <T> is Nullable(Of SomeEnumeration) the above code does not work because I can't cast 0 directly to SomeEnumeration.Zero.Is there some way to check whether <T> is Nullable(Of [Enum])? Or some way to write a method which allows Integers to be cast to Nullable(Of [Enum])?I feel like I'm forgetting something that would allow me to write one of the other of these, but my weak google-fu is turning up nothing.
EDIT: Okay, thanks to dasblinkenlight's answer below, I can detect when this circumstance is occurring, but what I need to do now is to take a type <T> which I know is Nullable(Of SomeClass), get a type reference to SomeClass and then create a new object of type Nullable(Of SomeClass) and assign that to LoadData.My problem was that I had a lot of difficulty in finding any function which would accept baseType as an actual Type.Parse accepted baseType as a parameter, I knew baseType was an [Enum] type because of dasblinkenlight's code, so I was, in this instance, able to code a solution. It's a solution which is very specific to my problem (i.e., T is Nullable(of SomeEnumeration)), but it's a solution nonetheless.
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Jul 10, 2010
I am somewhat new to object oriented programming and am attempting to flatten a Linq object hierarchy by using a shim class.how to initalize a derived class with property values from a base class?I have two objects, a base object with about 100 properties, and a derived object which inherits from the base object and adds a few additional properties beyond those of the base object. My simple constructor creates the derived object, but I am looking for a way to initialize the derived object properties with values from the base object.Right now I am using reflection to iterate over the properties individually and I suspect there may be a better way. The following example shows my shim class constructor for the derived class, and two properties:
newProperty1 - a new string property of the derived class
flattenedProperty2 - a new string property of the derived class, copied from a 2nd-level object of the base class
Code example:
Public Class derivedObj
Inherits baseObj
Private _newProperty1 As String[code].......
Is this the correct constructor approach to flatten the object hierarchy using a shim class? My second question relates to initialization of properties in the derived class. The constructor above creates the derived object, but what is the best way to initialize the derived object properties with values from the base object? The following code uses reflection to iterate over the properties individually, but I suspect there may be a better way.
Code example:
' property names are in the string array fieldNames
'baseObjQuery is an ienumerable of baseObj
'derivedObjList is a list of derivedObj[code].....
Is there a simple way to initialize values for the properties in the derived object based upon the values of the common properties in the base object?
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Dec 22, 2009
I have an existing application written in html/asp that calls routines from a standard dll (written in VB6), and (3) COM+ components (also written in VB6). The db is MS SQL.
This is a very small and benign application that does logic processing. It is becoming increasing difficult to find shared hosting sites that allow registration of standard dll's (using reg32) and the COM+ components (using the IIs tools).
On the other hand, I was told by one hosting service (goDaddy) that they can host apps that are written in .NET>>>
"DLLs written to the .NET Framework specification can be run automatically from the /bin folder of your ASP.NET enabled website."
What does this entail and can it be done? i.e., can I convert the older VB6 components (and the asp/html code?) to .NET?
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Oct 1, 2009
i have xml file like this:
Quote:
<?xml version="1.0" encoding="UTF-16" standalone="no"?>
<zylab>
[code].....
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Jul 31, 2010
I am trying to create an application that will enable me to type in my local language. For that I need to modify the key presses. For example when I press key A it should change it to ”. Also I would like to know how to detect double and triple key presses e.g. shift + W and ctrl + shift + J and remap them to a different character. Also I would like to know how to detect a text string like and replacing them with other string like member. I have found a code that modifies key. But when I tried to change key A to key B it produces AB. I am including the code below. Hope I have made myself clear.
[Code]...
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Sep 28, 2010
I am attaching a working program. But in this program i need to do some changes
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Sep 2, 2010
I have (with help from you) got 'full' control of Canon image capture and processing with feature recognition, and USB cam capture including frame modification on the fly. I now want to read an avi file and modify it on the run. I have found several C# and C++ routines as a good basis, (Especially the steganography example) if only I could successfully convert them. Unless I understand what I am doing wrong I don't stand a chance. So - start with the absolute basic Open/Close avi - This fails - Protected
memory eror
[Code]...
I can hardly think about streams til I can open a file, but when it is functional to the access to frames I'll submit a final copy for othersto use
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