I want to get the cookie using Live HttpHeaders and then copy and paste it (as a String) into a textbox where my program will use that cookie to navigate through pages. Here is what I have at the moment:
Dim myCookie As CookieContainer
Dim cookieString As String = TextBox1.Text
myCookie.Add(cookieString.Cast(Of Cookie))
This is just a silly attempt I just want to ensure anyone capable of helping understands what I wish to do.
I want to cast a String into a Cookie and add it into a cookiecontainer. For example if I had Dim cookieString As String = "variable1=hello&variable2=goodbye" Dim myCookieContainer As CookieContainer myCookieContainer.Add(cookieString.Parse(Cookie)) Something along those lines.
View 1 RepliesPrivate
Sub cmdExit_Click(ByVal
sender As System.Object,
ByVal e
[code]....
Can I get info from stored cookie on the local machine. I have a Webbrowser control in a winform, and I would like to output data from a cookie to a label or so.
View 4 RepliesI have the following code and I'm getting tons of Invalid cast Execptions This is for VB 2008 Case Study Auto Center ( Car Wash)
Imports System Imports System.Drawing Public Class frmMain
[Code]...
I tried to parse string to TimeSpan like the following :
Dim dt As DateTime = DateTime.Now
Dim timeCheckin As String = Format(dt, "HH:MM:FF")
ts = TimeSpan.Parse(timeCheckin)
It threw error like this:
System.OverflowException: The TimeSpan could not be parsed because at least one of the hours, minutes, or seconds components is outside its valid range.
HI, using vs2008 and building a web app. On a asp page called blackjack.aspx, I have four labels with id of lbBJTStatusP1 lbBJTStatusP2 lbBJTStatusP3 lbBJTStatusP4.
I want to address those labels in a single sub by casting the casting two strings into the control name, so that string lbBJTStatusP & "1" would refer to lbBJTStatusP1.This is done on the code behind page.
So far I have tried this but with no success. boxct refers to either "1" "2" "3" or "4".[code]...
I tried to parse string to TimeSpan like the following :
Dim dt As DateTime = DateTime.Now
Dim timeCheckin As String = Format(dt, "HH:MM:FF")
ts = TimeSpan.Parse(timeCheckin
I have a text file with names that have spaces and commas. For some reason when I read the file it gives me this error. Code is below. Also, I am reading the file into a combobox.
[Code]...
I'm getting this error
Unable to cast object of type 'System.Int32' to type 'System.String'.
when doing a routine LINQ to SQL query:
Return (
From n In DbContext.Newsletters
Where n.NewsletterID = NewsletterID
[Code]....
How is it possible that an Int32 can't be cast to String? How can I debug something this? Since it all happens deep in the bowels of LINQ, I can't even get any indication what field this is angry about.
I'm struggling with enums
Private Enum sizeMode
AutoSize = 2
CenterImage = 3
Normal = 0
[CODE]...
Here i'm trying to cast a string to a pictureboxsizemode: PictureBox1.SizeMode = DirectCast(DirectCast(fields(4), sizeMode), PictureBoxSizeMode)
Dim NSNSRC As String = WebBrowser1.DocumentText
This throws me an error although DocumentText does have a value, I have also tried a .tostring after and it still did not work.
Surrounding Code:
While DocCompleated = False
System.Threading.Thread.Sleep(0)
End While
[Code].....
I am currently going through a book on beginning VB,NET and am trying to complete one of the exercises in the book. I have created a function that validates user entries to check that they are numeric and within certain a range.If text value is entered into the textbox I get an exception error saying that
"Cast from String to type double is not valid"
[code]...
Is there a better way of testing if a string can be converted to an integer other than something like the following?
Public Function IsInt(ByVal value As Object) As Boolean
Try
Dim temp As Integer = CInt(value)
[code].....
I'm using the filter method of Binding source in VB.net to filter results in a DataGridView based on the text in a search box. However, the idea of this search, is that it shows a row if any of the cells contain the text. So my filter string ends up looking like this:
[Code]...
I get an Invalid Cast Exception - Conversion from string to double not allowed. I don't know what to do.
Option
Strict
On[code]......
I read somewhere that older VB .net (pre VB .NET 2005?) couldn't use overloaded operators in a C# class. Is it true for overloaded cast operators?Either way do you guys think it's a disadvantage for a C# class library not to include them and arithmetic methods as actual methods for other languages, like:
ToDouble
ToFloat
FromDouble
Add
[code]....
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.
Function runs fine on the listbox until i use the btnUp_Lanemgr click event
throws an exception in function (below in bold) "Unable to cast object of type system.string to type namespace.myitem"
what i can do to make this work?
'Button moves selected listbox item up
Private Sub btnUp_Lanemgr_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUp_Lanemgr.Click
[Code]....
When I run the code below I get the error "Specified cast is not valid." on the following row in the
intCheckBoxToonVrijeTekst01 = CInt(If(reader.IsDBNull(0), Nothing, reader.GetInt32(0)))
Private Sub VulMedewerkerVrijeVelden()
Dim strVulMedewerkerVrijeVelden_SQL As String = String.Format _
("SELECT " & _
[code]....
The datatypes in the sql server 2008 DB of the columns that I use in my query is "TinyInt".
I've got a masked text box that throws an invalid cast exception if I try to put anything in the TextChanged event:
Private Sub mtbZVal_TextChanged(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MaskInputRejectedEventArgs) Handles mtbZVal.TextChanged
MsgBox("OK!")
End Sub
Even more oddly, it throws the exception in a completely different part of the program. The masked textbox is on a form that opens when you press a button, and that's the bit that gives the error:
Private Sub cmdAddLoc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdAddLoc.Click
If frmLocation.ShowDialog() = DialogResult.OK Then
End If
End Sub
I'm just converting a date to a string but I'm getting this error. It's not listed as one of the normal exceptions to the datetime.tostring method. Googling around, it looks like it's an actual bug where it thinks StartDate is an int--but that's no help to me, as I just need to convert the date.
dim StartDate as nullable(of date)
dim Date1 as string
if not StartDate is nothing then
Date1 = StartDate.tostring("yyyy-mm-dd")
end if
I'm binding a ComboBox's SelectedIndex to a Nullable database field like so:
VB.NET
ColapsoComboBox.DataBindings.Add("SelectedIndex", EnsaiosBindingSource, "Colapso", False, DataSourceUpdateMode.OnValidation, 0)
As you can see, I've defined the NullValue to be zero, yet I get an InvalidCastException. Is there anything I'm doing wrong? Or is handling the binding's Format and Parse events the only way around this?
I am getting the following erro message: "Unable to cast object of type 'System.String' to type 'System.Predicate`1[System.String]'." on the line of code: If Not StrgFrag.Exists(wrd) Then I was expecting a True/False response and assumed it would work given that wrd is a String variables and StrgFrag in a List(of String). Do I need to reference the wrd variable differently? Dim StrgFrag As New List(Of String)
[Code]....
I had write code (just for learning), the codes :
dim Temp as string
Temp = Recordset("
Table_Field")
but, when I start Debugging the error messages "Unable to cast object of type 'ADODB.InternalField' to type 'System.String"
I'm new to VB 2005, the code below is actualy coded from VB 6 and just converted it to VB 2005. I'm having trouble with line that's on bold letters.In VB 6 this works just ok. By the way the error message is "Unable to cast object of type 'System.String' to type 'ADODB.Connection'." [code]
View 5 RepliesVB 2003 Combobox collection from -3 to +3 The goal of the message is to warn the user that the systems only covers +- 3 timezones, if he types in for example +4 or -4, he gets the message (by the way: how to protect the system if he types for instance a character?)
When I run the application: 'Unhandled exception: Cast from string "click" to type 'integer' is not valid
Private Sub ComboBox1_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ComboBox1.TextChanged
[Code]...
Combobox collection from -3 to +3 The goal of the message is to warn the user that the systems only covers +- 3 timezones, if he types in for example +4 or -4, he gets the message (by the way: how to protect the system if he types for instance a character?)
When I run the application: 'Unhandled exception: Cast from string "click" to type 'integer' is not valid
Private
Sub ComboBox1_TextChanged(ByVal
sender As
Object,
ByVal e
As System.EventArgs)
[Code]...
I want to cast a system.string to system.windows.forms.form
View 2 RepliesI am getting this error Cast from string "" to type 'Double' is not valid.Here is my coding:
Private Sub btnCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculate.Click
Dim intSqft As Integer
intSqft = Val(txtl1.Text) * txtw1.Text
[Code]...