.net - How To Write Dynamic Code
Sep 11, 2009
For example i got a class and its got its own properties and i am passing the name of the class and the name of the property to be called to a function Say for example exp is the variable which i am passing which contains a value = "ClassA,Property1"
Function Property2BCalled(byval exp as String)
dim classname = split(exp,",")(0)
dim propertyname=split(exp,",")(1)
dim value= classname.propertyname
End Function
I wanna do something like that,given above.
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Mar 22, 2011
I am new to XML and ASP.NET. I need to design a application which will use webservice input and output (LDAP webservice not made on asp.net).I need to send username password and other fields in XML string format to webservice methods and get the more details about username in xml string format only.So i need to send xml and get xml string and populate my server controls with xml attributes ,elements,values etc.This includes update and delete also..If I use XMLDocument evry time to read write xml , what can be the best way to store all unique xmlattribute, xmlvalues and xmlelement in a Object which is accessible throughout my website for a specific user and sould persist on all postbacks unless user logouts
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May 23, 2012
i have a notification j-query plugin .. i taste it in my page (working 100%)but when i want to use it in a event SqlDataSource1_Deleted with the response.write method it does not work
Protected Sub SqlDataSource1_Deleted(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceStatusEventArgs) Handles SqlDataSource1.Deleted
Response.Write("<script type='text/javascript'> showNotification({message: 'This is a
[code].....
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Oct 14, 2011
I've build a large program with many references. F.e.:
System.Data.DataSetExtensions
System.Linq.Dynamic
I've to write a Dynamic Linq Expression: [URL]
In my case: Dim query As IEnumerable = ds.Sales.Where(strWhere)
But with System.Data.DataSetExtensions Where is misinterpreted. The compiler expects (Datarow, Integer, Boolean). If I delete System.Data.DataSetExtensions everything is ok with this expression, but I get many other errors, so I need this reference. What can I do that the Where is interpreted correctly?
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Jan 27, 2009
trying to write a dynamic sql query that fetches data from oracle 10g database. My Where criteria is giving me real problems but i guess it has to do with the oracle data format. The data column is a TIMESTAMP data type storing values like 25-JAN-09 07.06.01.000000000 AM. Am trying to get rows having the columns matching a specific date( ignoring the time values), my where looks like this
WHERE to_date(COMPLY_RUN_DASHBOARD_DATE,'DD-MON-RR')='" & Now.Date & "'"i get the following error :CheckError ORA-01830: date format picture ends before converting entire input string
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Mar 21, 2012
I have users check off lab facilities in a UI. I want to use linq to fetch corresponding records for all of the labs that they have checked off. Basically,
Dim myRecs = (From l As EpiData In myDataContext.EPIDatas Where l.facility= _
one of the checked labs
So basically, I need to write a linq query where the "strings" to match are determined at runtime. Is there any way to do this easily? I know that there is a library out there called dynamic LINQ, but (1) it's in C# and I'm writing in VB (2) I'm really just looking for a single, simple solution for this single case.
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Feb 20, 2011
what is wrong with my code and I get no feedback from my button click event, i have imported. ( code Below) and i have tied differrent combinations of the code without sucess.maybe add extra to my code for the list to show open Port or closed ports.
Imports System.Management
Imports System.Management.ManagementObjectSearcher
Imports System.Management.ManagementNamedValueCollection[code].....
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Jan 24, 2011
i am asking that can i use c# language to implement "actions" fired on "click side events" such as mouse over the reason for this stupid question is that i remember some syntax of registering functions for particular events of formview, which are call when the event occurs (yes there ispostback involved" is something like the above possible for client side events using c# or even vb.net
protected void Page_Load(object sender, EventArgs e)
{
Label3.Text = "this is label three";
[code]....
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Oct 27, 2009
I'm trying to write code to generate a random code for a textbox. It has to contain both numbers and alphabets. This is what I have so far
Function HomeIDCode(ByRef random As Random) As Random
Dim strValue As String
Dim strAlpha As String
[code]....
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Aug 23, 2010
i'm building a basic server program that I want to recieve commands and execute them sent from a client program and I'm using my home network to test it out. I've got no problem with the communication between the client and server programs and have used a simple Send Text function to communicate to the server program which simply brings up whatever text was sent in a message box.
I've decided that constantly updating the program and transferring the new EXE file just doesnt work as I have to keep starting and stopping the server program to do that just to update the list of commands it recieves. So say for example I've got a button on my client program that tells the server to open the cd-rom draw on that computer, it sends this in the form of simple text openCDdraw" and when the server recieves this, it pops open the cd draw and so on and so on... but I thought a better way of doing this may be to say have the commands listed in a SQL database and when the server recieves a message it searches through the database to find the correct command and executes the code associated with the command.
Now I can retrieve the information fine in to a string variable ("Dim a as string, a = dr.getvalue(3)") but where do I go for there? This is the problem see. My apologies if I've gone a bit long winded on this one but thought it necessary to explain what I'm doing. I've heard of dynamic code execution but when I tried a project I found on the internet it had been coded in C# and I don't know any C nor do I want to as I'm a VB veteran and have updated myself with the way of .NET now so am not going to start all over again with learning C. Does anyone know of an easier way of doing this? Static code is so easy to do because it is typed straight into the coding sections and I had already thought about creating loads of subs/functions to execute each command but again that involves updating the EXE file every time so there must be a better and easier way of doing it.
Can I also just point out that this little project i'm working on is not for a TROJAN or whatever that old NETBUS program used to be called, it is simply so I know how to do it and can use it for other things that I'm working on and through. Also I'd just like to know how to retrieve and execute code from a database or text file.
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May 3, 2011
I have never dealt with dynamic control events before. I have a variable number of a controls each created at runtime. However I don't know how to code events for each control as they should do different things. I've looked at WithEvents and AddHandler and know I have to use Sender however not sure how to use /where to put eg. MouseEnter 1 panel when there's several.
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Jul 3, 2011
I use the following code to fill the Table1 dictionary with the information found within the LINQ query.[code]....
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Feb 12, 2011
How would I change this code to make the factory dynamic. I believe I was close with remoting. I don't want any hardcoding of the factory, nor do I want to have to recompile. The database drives it.
Dim genericRule As Rule
Dim factoryObject As String
factoryObject = _dal.GetFactoryObject(ruleId)
[code]....
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Jun 8, 2010
I've got an ASP.net file, and I'm trying to include dynamic code which was easy in classic ASP. Here is what I have tried so far:
[Code]...
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Feb 17, 2011
I use the following code to fill the Table1 dictionary with the information found within the LINQ query.
Dim DB As New DatabaseDataContext
Dim Table1 As New Dictionary(Of String, Integer)
Dim Table2 As New Dictionary(Of String, Integer)
[code].....
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Aug 8, 2009
[code...]
In particular the MetadataProviderFactory Line... I can't quite seem to figure out how it should look in VB.
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Aug 15, 2011
I am looking for sample code for vb.net Dynamic Dashboard applications? i want the code in vb.net which will be my front end and sql will be my back end for database?
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May 7, 2010
i want to generate a code with 2d-dynamic array to make a matrix?
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Apr 18, 2012
trying to write some VBA code to assemble different SQL code according to user settings on an Access form. The code below is not the actual code but shows the problem I have been having very simply.
Dim SQLsearch1 As String
Dim SQLsearch2 As String
Dim A As Integer
[code].....
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May 23, 2012
I'm letting my users write their own HTML from my webpage. When they click the preview button, my code behind needs access to controls on the page (and so I understand I can't use a web method here). It builds the HTML and saves it as a file on the server. My question is: Once the file has been made, I want to automatically open the file in a new window for the user to see their handy work. I'm using vb.net, but happy to receive c# answers.
[Code]...
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Oct 8, 2009
I have this code that I have found on the net and I run but there is error that says "Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information.". May I know what is the problem?
Here is the code that I get from the net:
CODE:
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Jan 7, 2010
In a ASP.NET app from a procedure IN a VB code file a dynamic control is called. The first problem may solve the second. In the following line of code I am getting an "end of statement expected" error at the following line.
[Code]....
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Oct 2, 2009
I know I can create XML ouput in Example 1 as follows using the following code in Example 2. How do I create the same output in Example 3?[code...]
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Oct 6, 2010
i have 4 pieces of code i need for one bit to run then when webbrowser1 document completed like wepage load i want to run anotehr peice of code. then when the webbrowser loads again run more cun then when the browser loads again run some more code how can i do this is there like a wait untill function?
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Aug 6, 2010
Say you have a button that clears your form when you click on it.Well i was taught to type lblName.String.Empty etc etc. for each and every object on the form.There's got to be an easier way to write code to do that same thing if say you had 30 items to clear right?
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Aug 9, 2009
I have been looking forever and haven't even gotten a single clue on how to do this, but I made a program that sends a file that has some video game info to my e-mail. I want some other people to be able to use this, but I don't want to have to build another .exe for each person, so I was wondering if there was some way that I could make like 2 textboxes and a button where they enter their e-mail and password, then when they click the button it makes an .exe ( I would put textbox1 and textbox2 as the e-mail credentials I am assuming. )
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Oct 14, 2010
Using VB.net, C# and SQL ServerI want to write a pseudo for my application.pseudo code is like coding or flow chart...?Can any one provide a sample pseudo code for any type of application.
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Dec 23, 2011
I have already my code for generating primes in visual basic. net. Now I need to include inside my prime loop a TWIN PRIME loop which generates adjacent pairs of odd prime numbers.
An example would be [17,19] , [29,31].. ect. I am not sure how to write the code or where to insert it? I know that I have to have a 2 valued state variable SW.[code...]
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Aug 7, 2011
Some time ago, I did some F# programming, the following code is used to serialize/deserialize float32 array:#light
However, nowadays, I have to do some programming in VB.NET to serialize/deserialize float32 array again. As F# programming is not suitable for GUI, but GUI is necessary for my current programming.I want to know how I can rewrite the above code in VB.NET.For example, I have a float32 array, (I dont know what data type in VB.NET is equivalent to float32 array in F#) of (1.0, 2.0, 3.0); I want to serialize it using DataContractSerializer, then read it back so I can still get the same float32 array.
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Feb 20, 2011
I have Visual Basic 2010 and also bought a book to study and practice problems. I know how to add controls and assign properties but get confused with the coding part.understand this somewhat?
Here is one problem I am working on-
Write a program to make change for an amount of money from 0-99 cents input by the user. the output of the program should show the number of coins from each denomination used to make change.
Now I know what controls i need on the windows form but I am sorta lost on the coding to make this program work.
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