The program I am making contains many Form ,and I see that adding Forms increase the size of the final .exe . Is there any way to avoid making the large .exe ,as I have came to know that Large .exe is not good and also consume more RAM memory.
View 8 RepliesNow all went well about from using the structure correctly. The working of the structure was perfect. How ever i missed Two important issues. The structure needed a fixed size of 10 items (9 in programming terms starting from 0) And also out of the 5 items allowed to be chosen as one of the member types for the structure a limit of 5 items of that particular type.
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Does anyone know how to implement in VB an algorithm for final differences that changes the network (the matrix) during the computation (decrease its dimensions)?
View 1 RepliesI've looked up this answer and changed 'build' option to embed the files but I still get a io file not found error. where exactly are my resources located? atm my code is this:
Private Sub TextBox1_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyDown
Select Case e.KeyCode
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this application for computing the gcd but it give me just the value for first iteration but i need the final values of x2 y2 a
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim x1 As Integer
Dim x2 As Integer
Dim y1 As Integer
Dim y2 As Integer
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phi(n) to any number in this code give me one?
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim n As Integer
n = CStr(TextBox1.Text)
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Dim Test_Output As System.Byte = 0
Try
For test_value As System.Byte = 0 To 255
Test_Output = test_value
Next test_value
Catch ex As Exception
MsgBox("Exception occurred: " & vbNewLine & "Test_Output is: " & Test_Output.ToString & vbNewLine & ex.Message)
End Try
I have a BaseClass, a DerivedClass1 and a DerivedClass2 from a third party library. DerivedClass1 and DerivedClass2 both inherit from BaseClass.There's a ContainerClass, from the same library, with a member variable ActiveItem, which can be of DerivedClass1 or DerivedClass2, so it is declared as BaseClass.I want to know if ActiveItem is of DerivedClass1, as it can change in runtime without notice.If I do
Dim isDerivedClass1 as boolean = TypeOf(oject.ActiveItem) Is DerivedClass1
then I get a compile time error, telling me that ActiveItem can never be of DerivedClass1 type.I have tried several combinations of GetType and TypeOf but it doesn't seem possible to check this. I have also tried to declare an auxiliary DerivedClass1 variable and comparing their types, but haven't got any luck either.
Edit:The following code doesn't compile in vs2005 SP1.
Public Class Base
Public x As Integer
End Class
Public Class Derived1
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Is there a way to delete the final line of a DataTable? I use - DataTable.Rows.Remove()But how can I find out which is the final line in the DataTable
View 18 RepliesI need to build a comma-delimited string from an array.
For i=0 to ubound(arr)
str+= arr(i) & ","
Next i
The trouble is that I end up with an extra comma at the end.
My current method for removing the comma is:
If str<>"" then
Left(str, Len(str) - 1)
End if
But it seems pretty untidy, and non-generic. I have to do this so often, it's become a pain.
I have a system that has a gridview on one page with an Update Panel. On selection of one row of a gridview the system posts-back using that CommandName and CommandArgument to post the row that is selected, and then set a Session variable as the ID of that posted selected row. The other controls run Async correctly and the button in question is already registered using this on the RowDataBound event.
Dim gvRowSelect As GridViewRow = e.Row
Dim imbSelect As ImageButton = DirectCast(gvRowSelect.FindControl("imbSelect"), ImageButton)
ScriptManager.GetCurrent(Page).RegisterPostBackControl(imbSelect)
I would like to try and get this session on the button command and somehow within the master page, set a label to the current Session. On the imbSelect command the code is:
Dim cellSnapshot As TableCell = gvSnapshots.Rows(e.CommandArgument).Cells(0)
Session("Snapshot") = cellSnapshot.Text
Within the masterpage is there anyway of calling a function after the Page_Load, and after it has resolved all Postback events?
I am having trouble trying to get my shared class final value
Class name : Encryption
Public Shared Sub PassEn(ByVal PassTxt As String)
Dim strText As String = PassTxt
Dim salt As String = "61651616516161651615"
Dim bytHashedData As Byte()
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I am trying to call this from the call and get the return hash but when I try to make a global variable it doesn't allow it. How would I call this and get "HashValue" on to a textbox on my form.
Over the last few weeks i have been trying to add a final level of nodes to my treeview from databases.Within each database is the title of the next node and the key of the node, the child nodes are linked to the parent nodes by the row number/ID column.That is my scenario.
Now comes the next "challenge" At the moment in my code i have had to take out the parts that cycle through each database to add the children as it was causing an error that is described (Learn how to insert hyperlink) here: [URL].. So to overcome that i removed it (dumb approach i know) My justification is that i wanted to see if "my" code worked to add all levels of the nodes. But instead of having All the nodes that should be visible, i only have all the last ones: heres a 'picture to show'What i have below; Whereas all the parents should have children, all the children grandchildren and the grandchildren greatgrandchildren.
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I have the following query:
Dim roommates = From p In dbroom.Residents _
Where p.room = queryStudent.First.r.id _
Where p.building = queryStudent.First.b.id _[co
de].....
But I still get the same error: The method 'First' can only be used as a final query operation. Consider using the method 'FirstOrDefault' in this instance instead.
How do I get final output to display month, day, year? Would I need another replace array? Or can I dynamically format from SQL table?[code]...
View 7 RepliesI'm running three subs in turn (one for each stage of the process that I'm carrying out).The first two of them run a VB Process using:
myProcess.StartInfo.RedirectStandardOutput =
True
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They then use the StandardOutput of their process to update one TextBox that I'm using for the output of all three stages.The final sub uses the shell because I can't get the EXE that I'm running with it to work properly using a process (this is not necessarily the problem though).The problem is that nothing changes in my textBox until the final sub has finished. The first two sub's output doesn't appear even though this should be just a linear process...
I'm trying to put a scroll in the final message box that populates when you run the program but I can't seem to get around it.
Option Explicit On
#Region "Description"
#End Region
Public Class Week3
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I am currently writing a code that prompts a user if they want to convert F to C or C to F, two functions with the calculations. My problem is my loop, it exits one time through and doesn't prompt again. And also doesn't display the final result.
' VB Script Document
option explicit
const menuBar = "Temperature Conversion"
Dim userPrompt, prompt, Temperature, toCelcius, toFahrenheit
prompt = vbOk
Do While prompt <> ""
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I'm taking my first (and only) beginning programing class for Visual Basics 2008. I'm working on my final project and have hit a snag. A little background info - I have been able to code everything except for two final steps (but they are my most difficult steps), on these final steps I've gotten two suggestions on other sites, one person helped me with the coding which I used for my form1, but it I still have several errors, and another person suggested that I use a module.
Here is the issue. I have totals on three forms that need to pass through to a final form, and once they are on the final form they need to show up in an itemized list and need to then be totaled again. I actually have a total of 5 forms including my first form aptly named form1, which incidentally is where someone told me I should set up my whole 'connecting the totals' form, and I believe the guy was on the right path with helping me but, I'm still obviously pretty lost on this last segment of coding. Since I had little difficulty with the majority of my project, I didn't think this last bit would be so difficult. I'm going to list my coding for each form below. My project is due Tue morning May 5th Eastern Standard Time, just in case someone starts reading this on or after that date. Just in case it helps explain the issue, I will also post my listing of error codes from my VB project, and they all are centered around my form1 (which is the form that I'm trying to set up the transfer through of the form totals). I also see that I can post attachments so in case it will help I'm going to post my project in the attachment too.
Error Codes:
Error1Event 'Load' cannot be found.
Error2Handles clause requires a WithEvents variable defined in the containing type or one of its base types.
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THis code extract a value from a table to a var...
Dim var_IES_fornecedores as double = 0
For Each dRow In ds.Tables("Tabelavalor").Rows
If dRow("numeroconta").Equals("221") Then
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This is the problem...the numbers after the period should be just 2 and not a lot of numbers...everythin wrong with the code?
this application for computing the gcd by using extended euclidean but it give me just the value for first iteration but i need the final values of x2 y2 a
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim x1 As Integer
Dim x2 As Integer
Dim y1 As Integer
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I am trying to access the types file from the project directory for the web root directory. Currently it only accesses it from the C:/, how can I have it access this file from the web root. I would like the file to be in the project folder as types.txt.
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I'm creating a database program for my final graduate at college. But I was stuck when I opened my solution, my visual studio it always crash and crash and crash..
My project it's using SQL Compact Database, 8 Project (6 Visual Basic, 2 Visual C++), using .NET Framework 3.5.A project in VB is 6 Windows Forms (Single App and MDI App), Class Library and C++ just Library.
What must I do now? Where can I fix my project? At least I can build the relase or installer of my project..
It's wrong to include all of project in one solution?
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im interested in doing a software application on vb.net, 4 now im still confused.
View 1 RepliesI'm having some problems with publishing an application I constructed in Visual Basic 2010 Express Edition. My application is used to calculate uncertainty coefficients, as per ISO requirements for fluid flows. My application calls 4 COMs:
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I'm noticing that sometimes strings drawn in a given column or row will be slightly over-antialiased or altogether clipped after scrolling horizontally or vertically.I can see that the quick way to clear this up is to send a final .Refresh() call to the DataGridView after completing the scroll. But, unlike the ReSize event for Forms, there doesn't seem to be a Begin and End Scroll event for controls, so I can't just send a .Refresh() to the DataGridView after scrolling.Does anyone have an idea how I might go about detecting when a scroll event has completed so I can send that final .Refresh() to the DataGridView?
View 5 RepliesI want to give my end user the abilility to navigate to a web page, and then I need a way for the user to close the web browser control so that I can capture the final url. There must be a way but the obvious candidate (a property named "url" of the web browser control) is not there.
View 5 RepliesI am in the process of writing a battleship game for a final project for school. I get what to do for the most part, but need a little jump start for writing the "ships" class. Does anyone have any suggestions?
So far my game starts with a dynamic array of buttons, but as of now they don't do anything. I need to be able to have the user place ships in places and have the computer randomly generate positions.
I am looking for a logic that loops to all records in a temptable and checks if the record exists in the final table (structure is different, only some fields are to be inserted in final). When the record does exist in final, a record should be created in a table duplicate.
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when i clicked the final button to display my results "as string" it still showeed the number?? here is the code i wrote, is relativley simple, but the theory doesnt make scence to me Basicly its a box with 3 lables, (first name, surname and age), 3 text boxes (for the user to input this info) and a button at the bottom called "display in message box" so when i click the button, it displays the users input in the form as a message box. [code] what i dont get is if i said to VB that vaiable "Complete" was STRING then howcome it still displays the AGE which is an Integer (a number) not a string??
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