Why Won't Boolean String Format Work
Nov 24, 2010I currently have the following GridView TemplateField:
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How To Convert Boolean Type Into On / Off Using String.Format
Jan 3, 2011Is there are any way to convert boolean type into "ON"/"OFF" using string formatter
Like:
Dim inpValue as Boolean
Dim outValue = String.Format("0:ON;OFF", inpValue)
' should show OFF as output
I cannot use code or IFormatProvider
IDE :: String.Format Giving Error - Input String Was Not In A Correct Format
Sep 14, 2011var queryString = string.Format("filename={0}&filestream={1}&append={2)", fileName, Convert.ToBase64String(b, 0, bytesRead).ToString(), 1);
above line of code giving error 'Input string was not in a correct format.'
In .NET String.Format Is Accepting Objects Of A Type That Don't Match The Format String
Jul 7, 2011I have a function that is getting passed a String and a DataRow.The String is a custom formatter. The idea is to do this
String.Format(passed_in_String, DataRow("ColumnINeed"))
The reason this is being done is at this point we have no idea what the column contains.However, if the formatter is "{0:MM/dd/yyyy}" and the DataRow("ColumnINeed") is an integer containing 42, String.Format is returning: MM/dd/yyyy In this situation I need it to throw an exception instead of returning nonsense.Is there anyway to make String.Format throw an exception if the object does not match what the format string is expecting?
Format String To Pass To String.Format That Would "move" The Decimal Point?
Aug 26, 2010So I need a format string to pass to String.Format that would "move" the decimal point.I can't perform any math operations before doing the String.Format, so it has to work right off the bat.Basically I'm emulating a formatting string from a proprietary server. In it if I say:
"MR2"
for the value:
12345
The result is:
123.45
I'm close with this, but it's not spot on:
String.Format("{0:#0.##}", 12345)
an extra, but not necessary... there is also MR2Z, which moves the decimal 2 left, but if the value is 0 "" is returned.
.net - Put A String Into A Boolean Variable?
Dec 13, 2011If I try to put a string into a Boolean variable such as this:
Dim testValue As String = "True"
Dim bool1 As Boolean = testValue
With Option Strict On I get an error and the suggested fix is to change the second line to:
Dim bool1 As Boolean = CBool(testValue)
This is fine, But - what are the advantages / disadvantages of doing this instead:
Dim bool1 As Boolean = Boolean.Parse(testValue)
String Not Seen As A Valid Boolean?
Apr 20, 2011I have the following
Private Sub holidaysaveButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles holidaysaveButton.Click
For Each dr As DataGridViewRow In DataGridView1.Rows
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String.Format Input String Was Not In Incorrect Format
Nov 4, 2010however, i'm copying this directly from the book in its example format and still getting an error.
FormatException was unhandled
Input String was not in correct format
Public Class Form1
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Conversion From String To Type 'Boolean'
Apr 7, 2010I've got a routine that checks a website my my external address. What I'd like to do is loop through the string just to get the first 15 numbers and full stops (periods). But that isn't my question, my problem is I've got this routine that isn't building because of a string conversion issue. I don't know how to correct it.
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Implicit Conversion From String To Boolean?
Nov 10, 2010I encountered due to a coding error a behaviour I can't explain.In one line I have an implcit conversion from a string to a boolean value:
Class myClass
Public Property myString() as Boolean
Return "123" '<= Implicit Conversion occurs here
End Property
End class
[Code]...
Are there any differences in the behaviour between the .NET Versions?The code is compiled against .NET 2.0 with implicit conversion on.
String Value For A Boolean Column In A DataGridView?
Jul 24, 2011I fill a DataGridView with the result of a database query. I have a boolean field named Gender. I want to show "Masc"if it value is True or "Fem" if it's False.
I can't assign a string value to a bool type cell. How can I do this?
PS: I've seen a C# example, but I can't understand how to do this in VB.
String Was Not Recognized As A Valid Boolean?
Mar 3, 2009Dim today As System.DateTime
today = System.DateTime.Now
Dim strDate As String = today.ToString("d")
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Date Format - Take A String Formatted Like '010711' (DDMMYY) And Put It Into Format '01-Jul-11'?
Jul 1, 2011I need to take a string formatted like '010711' (DDMMYY) and put it into format '01-Jul-11'. Ive thought about doing something like string.toArray and then having some conditionals that format from there but am looking for an easier way.
View 5 RepliesVS 2008 What To Name Boolean Data Member And Boolean Method
Nov 17, 2009From what I read it is a good convention to name a method that returns a boolean value with the prefix of "is" or "has". So in keeping with this convention I am trying to name a method in my program with this prefix but I am running Specifically I have a class called Day. It is a simple class with a few data members and one method that returns a boolean value of true or false. The name of the boolean variable is isSpecialDay. This class has a method called isSpecialDay which takes the date of the day, applies some criteria to the date and then sets the variable isSpecialDay to true or false. My problem is that the boolean variable is named isSpecialDay and so it the method. What should I do?
Public Class Day
Private TheDate as String
Private DayName as String
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Conversion From String To Type Boolean Is Not Valid
Oct 24, 2011The error occurs on the line If wba.Selected = "MARKETING CODE" Then.
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Private Function CheckForNull(fieldvalue As String) As Boolean?
Apr 2, 2010How can I create a function from this example:
Private Function CheckForNull(fieldvalue as string) as Boolean
That checks that all my fields are not empty? For example, say I have three fields txtFirstName, txtLastName, and txtAddress. How would I write the function above that would check that these fields were not left empty?
Variable Lists In Dictionary (String / Boolean And Integers)
May 5, 2011So I had a smart idea to make a dictionary with all my variables so I could save them easily in chunks. This includes String, Boolean and Integers. When I was in Framework 3.5 I only had a few warnings about stuff that I didn't have coded in, but now in Framework 4 I am maxing out all my warnings with Implicit conversions. Personally I don't want to go to every number and put quotes around it put quotes around "True" because then it may change the method.
Public Function loadGeneral(ByVal fName As String) As Boolean
Dim tempDict As New Dictionary(Of String, String)
For Each kvp As KeyValuePair(Of String, String) In GeneralSettings
Dim v1 As String = kvp.Key
Dim v2 As String = QuizZing.My.Settings.GetSetting(fName, v1)
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VS 2008 - Conversion Of String To Boolean Error Appearing
Apr 23, 2012I have the following code, where I want to use data from the database in an if statement, however it doesnt work, the error of conversion of string to boolean appears.
If "Staff.Welcome.Text = 1" Then
WelcomeRead = True
End If
Why Does SQL Work In One Format, But Not Another
Jun 22, 2011I've been having this problem with MySQL for the past month. It's not a big problem, but it's pretty annoying.
query = "SELECT * FROM MESSAGE_TEMPLATES WHERE MESSAGE_SEND_DATE = '" & _date & "'"
This simple line works fine when I pass it to the dataReader in MySQL. However:
query = "SELECT * FROM MESSAGE_TEMPLATES" & _
" WHERE MESSAGE_SEND_DATE = '" & _date & "'"
This does not work, even though intellisense shows them both to have the same value. MySQL complains about having an error in the syntax. You can imagine this becomes more problematic for larger statements that take up several lines.
VS 2005 Error Conversion From String Name To Type Boolean Is Not Valid?
Sep 7, 2010I want to connect to the proxy server using with the webbrowser while reads the strings of the proxy username, password, ip and the ports in each textbox.ere it is the
Imports System.Net
Imports System.IO
Public Class Form1
[code]....
Custom Format Timespan With String.Format?
Jan 13, 2010I want to format the Timespan to have format like this 49 hr 34 mn 20 sec
I used the String format below :
String.Format("{0:00}:{1:00}:{2:00}", theTimeSpan.TotalHours, theTimeSpan.Minutes, theTimeSpan.Seconds)
It formats the Timespan to this format 49:34:20. How can I add hr mn sec to the String.Format above? or there's another easy way?
Visual Studio 2010 - .NET Function As String, Will Return False Be A Boolean?
Sep 21, 2011I have a HTTP class that gets content from URL's, POST's content to URL's etc and then returns the raw HTML content.In the function inside of the class it detects if there is a HTTP error and if so I would like to return false but will this work if I have declared the function to return a String?
Code Sample of what I am trying to do (Note the Return Content & Return False if a HTTP error code is detected)Public Function Get_URL(ByVal URL As String) As String
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Number Format Doesn't Work?
May 7, 2010I have the following code on my form. But the code returns only "000 000" when I enter any 7 digits in txtTEL1.Text.
Private Sub txtNumberFormat()
With txtTEL1
Select Case Len(.Text)
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VS 2008 Goto Debug Program Get Error 'Conversion From String' To Type 'Boolean' Is Not Valid
Jan 27, 2010i have a problem with my code: [code] At the bold part, when i goto debug my program i get the error "Conversion from string "TrueFalse" to type 'Boolean' is not valid."
View 3 RepliesString.Format("{0:C2}", -1234) (Currency Format) Treats Negative Numbers As Positive?
Jun 16, 2009I am using String.Format("{0:C2}", -1234)to format numbers.is always formats the amount to a positive number, while I want it to become $*-*1234
View 4 RepliesMake Boolean Column Editable (asp.net VB GridView Filled By DataTable That Has Boolean Column) ?
Oct 27, 2011After Filling a DataTable in GridView's DataSource . A column with check box Type appears but it created as read only column and I can't enable it or make it editable... even i tried .readonly = false and still can't be edited
View 1 RepliesAsp.net - Decimal.parse Fails For Currency String Created With String.Format?
Apr 5, 2011I have a field that I display via: String.Format({0:c},amount) This produces the string "$28.28" However, when I try to convert back to a decimal amount, I get an incorrect format exception: amount = Decimal.Parse(amount.Text, NumberStyles.Currency) I also tried it with NumberStyles.AllowCurrencySymbol with the same results. I verified that the value in amount.Text is "$28.28". Am I missing something? Shouldn't these two operations use the same currency symbol and formats?
View 2 Replies[2005] String.Concat Generates A String A Format Not Supported Exception?
Feb 19, 2009The following is ment to generate the path to a text file and stream the data found there into an array.
Dim y1 As String
Dim y2 As String
Dim y3 As String
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Why Do 'string()' Overloads For String.Split Not Work As Documented In MSDN
Jul 29, 2010After having some trouble in my own code using String.Split and the Split(String(), Int32, StringSplitOptions) overload, I decided to look to the MSDN.I copied the entire VB.NET code example from this link: url...I placed it in a new class, and received the following errors (same errors as my own code example):[code]Why can my code not recogognize the string() parameter overloads to String.Split? Remember, i took the code from the MSDN link above, copied and pasted and it still did not work.I am counting on using the string() instead of char() overloads shown here: url...
View 15 RepliesString Formatted Using String.Format Not Displaying In Print Preview?
Nov 29, 2011I'm trying to create a print function with a corresponding print preview. For some reason, any string I create with String.Format will NOT show up on the print preview! Use the code snippet below as an example:
Dim strTemp As String
strTemp = String.Format("{0, 210} {1, 75} {2, 51} {3, 200} ",
"NAME", "PRICE", "QUANTITY", "DESCRIPTION")
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