If we have a string that contains for example "01_1A" in ascii, I would like to take first two chars and following two chars after mark and send it as hex format, like &H1 and &H1A.
Note that I would not convert ascii to hex. I am asking for something like &H(var).
I have data that has to be collected from my database and sent to a supplier's edi system. The file has to be in ascii format so their system can read it. I am writing what I see as an ascii format file but they say it's in edibc format when they receive it. I am posting my code and hopefully somebody here can help me out. Funny thing is that I have done this before successfully and am using virtually the same code but to no avail!!
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim filed As String = "Y"
' get records to be transmitted and plop them into an array list
Dim con As VICSClaimDAO = New VICSClaimDAOSQL()
[code]....
I'm working on decoding a NMEA sentence that is a compressed 8-bit string. I'm having a very hard time of wrapping my head around the bit manipulation needed to convert this string. If someone could get me started with this it would be great.
Here is the incomming string:
!AIVDM,1,1,,A,14eG;o@034o8sd<L9i:a;WF>062D,0*7D
and here is the expected output:
[code]...
<body>
<%
Dim EMailFrom As String= "?"
Dim EMailTo As String="?"
Dim EMailSubject As String="?"
Dim EMailBody As String="?"
[Code]...
I need to send commands from PC to device through USB cable, and the code is : "0"(48) and must end with Enter(13). so what should I type in for the code for Enter?
View 6 RepliesI am trying to make a simple program to convert ascii in its code format
Example: Chr(53) & Chr(53) & Chr(54) & Chr(100) & Chr(52)
to a readable format. I understand that this can be easily accomplished by writing in the ascii code into the code will do it but I am trying to create a more interactive method of doing it so I can copy and paste a long length of code into a textbox and have it update a label with the conversion.
I need to create a Digital terrain model from ESRI ASCII grid format into an array. First I need to use the column and row values (from the header information) to read into my file to specify which values to put into the array. I think i have to use both counters simultaneously, and although Ive read in the first line (columns) I can't get the next line in. Do I have to use a counter under a different name, and can I do it in a nested loop?
vb.net
Private Sub Input_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Input.Click
dlgOpenASCII.ShowDialog()
filename = dlgOpenASCII.FileName
[code]....
I keep getting the error " Object reference not set to an instance of an object." in relation to the line : selA = CType(lstStudents.Items(r.Index), String)
[Code]...
var 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.'
I 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?
I encountered error message "Conversion from type 'DataRowView' to type 'String' is not valid" when listbox1 item was selected. Listbox1 items were imported/binded from Access.
View 5 RepliesI am trying to check if a users input contains any special characters from a list, does anyone know who I would go about doing this?
I've tried the LIKE operator:
Dim sMatch As Boolean = tTitle.Text Like "[-/,.:;*?""""<>|&'[]^%£$()_+=!#]"
but doesn't seem to work, i think special characters are used for settings.
Is there a RegEx i could use for this??
this is the JSON string the data is required in to be sent using a given URL.[code]I am using VB.net and i need to create this string using VB.net. I tried using namevaluecollection and doing a POST. I also tried making a string and send data using GET. Both failed. how can i do this?
View 2 Repliesi knew Serial ports are a type of computer interface that complies with the RS-232 standard. They are 9-pin connectors that relay information, incoming or outgoing, one byte at a time. Each byte is broken up into a series of eight bits, hence the term serial port.And I want to write a program chatting through Serial Port.
View 3 RepliesAlright so I changed the column that the As of Sales column gets its data from, however they are both the exact same type and look the exact same, but I still get this error.
Both are Decimal(38,6)
Input string was not in a correct format.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.FormatException: Input string was not in a correct format.
Source Error:
Line 60: <asp:TemplateField HeaderText="As Of Sales">
Line 61: <ItemTemplate>
Line 62: <%#Getsales(Decimal.Parse(Eval("AsOFSales").ToString())).ToString("C0")%>
Line 63: </ItemTemplate>
[Code] .....
im trying to create a simple program that send string data through winsock, there are hundresd of tutorials allover the web, but non of them seem to work! I am fairly new to visual basics but i undersatnd the consept of winsock and 'all that stuff'. [code]
View 5 RepliesI enter to the cell in DGV with other format Ex; In column A cell is Integer but somebody put a string there , How to avoid or put the data EventError.
---------------------------
DataGridView Default Error Dialog
---------------------------
The following exception occurred in the DataGridView:
System.FormatException: Input string was not in a correct format. ---> System.FormatException: Input string was not in a correct format.
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
[code]....
I am using vb express 2008. how i can print the data contained in Listview.
View 2 RepliesI'm new to .net. I would like to know how to convert a text data in string or in a file into a simple byte array[ ] format.
View 3 RepliesI am having a bit of trouble converting a single stored in a string as four hex values. I believe my problem stems from some Unicode hex values not matching the corresponding ASCII hex value above 0x7F (127). For example, I have the following single stored in a string; "518.42" or 0x44019AE1. The char that would contain 0x9A if the data type were ASCII contains U+0161 which will not convert properly to a byte array. My question is: Is there any way to force a string to be of ASCII rather than Unicode? Or maybe there are other recommendations? For reference I have tried both of the following. The first throws a format exception and the second converts to the wrong single.
Private Function ConvertHexToSingle(ByVal hexValue As String) As Single
Try
Dim iInputIndex As Integer = 0
Dim iOutputIndex As Integer = 0
[code].....
I've tried searching for this, but most people just want to convert hex values into their ASCII equivalents. That's not what I am looking to do.I'm looking to see if VB.NET has a simple built-in function to do this:
Private Function NibbleToString(ByVal Nibble As Byte) As String
Dim retval As String = String.Empty
Select Case Nibble[code]....
Is there a more elegant way to accomplish the same thing as that code?
I am trying to gather some information about exporting data contained in a datagrid to an excel spreadsheet. I am not using ASP. The number of rows and columns are not set(fixed). If someone was able to point me in the right direction or even better a quick example. I have search through previous threads and am unable to find any that relate to exporting from a datagrid on a windows form to an excel document.
View 15 RepliesI have to make probram in vb.net which can use as a audit tool for computers.give the suggestions how can i extract the data from machines such as what user machine contained what type of softwares are in place.
View 1 RepliesI am making a simple application that will be able to store competition data into a text file that I have given a custom extension to on saving. Here is an example of the format that i have saved the data in.
[Comp_Name]Test Competition[Comp_Name]
[Location]Silverwood Lurgan[Location]
[Type]Teams[Type][code].....
When i open the file, i want to redisplay the data in separate text boxes. Later on in the project i want to be able to search within the file for headings for example;
if "[Heat1]" is present then get all text between [Heat1] and [Heat1]
i am currently able to use the streamreader and open file dialog to retrieve the entire string of text fromthe however i am not sure how to go about getting the text between the headings I have used.
So 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.
I'm trying to convert an ASCII String to hex for VB 2008. So far I have this :
Code:
Function asc2hex(ByVal StrName As String) As String
Dim loopCount As Integer, strHold As String
For loopCount = 1 To Len(StrName)
strHold = strHold & Hex(Asc(Mid(StrName, loopCount, 1)))
Next loopCount
asc2hex = MsgBox(strHold)
End Function
However, It is not reporting all the bytes that it should be. For example: This is the correct format.
[Code]...
I need some thought input on how I can take my string of HEX values and convert them to ASCII according to the specifications below: A function would be ideal since I need to quickly decode about 250 records all having 20 thresholds to record.[code]
View 14 Replieshowever, 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
[Code].....
I am using Microsoft.VisualBasic.Fileio.TextFieldParser to parse a CSV file that was created with Excel 2003. The parser is working great with the exception that it is converting extended ascii values to question marks! So if the file content was:
± 3
The TextFieldParser is returning
? 3
I have tried all of the encodings in the System.Text.Encoding package with no luck. I thought I had it with UTF7 but it was dropping other characters like replacing the + sign with a space.
I have lines of text that contain "degree symbols" (ASCII(248)). I want to replace those symbols with an alphabet character (Z).I am changing the line of text into a charArray,iterating through one character at a time. How do I define the ASCII(248) in code to replace each occurence with a Z? Something like string.Replace(ASCII(248), "Z") would be nice, but that doesn't seem to work too well.
View 4 Replies