![]() If you want to handle invalid items and just default them. So what I am looking for is either a PHP or MySql function that will convert this ‘double’ into a date/time which has not changed or altered it in any way. Dim doubleAry As Double () Array.ConvertAll (TextLine.Split (vbTab), New Converter (Of String, Double) (AddressOf Double.Parse)) However, if the string array that you are giving it contains any invalid items, that will throw an exception and fail to convert any of the items. When received by the website I do not want to alter this date/time in any way, but I do wish to store it in a MySql database. You are correct in the fact that the double gives a date/time, this was fully explained in an earlier post, however, all answers I have received thus far are completly missing the point which is that the date/time ‘double’ is created elsewhere in the VB application. Once you have a DateTime object representing your chosen date, it is trivial to format it however you like, such as the example you gave, with DateTime::format(). The round-trip specifier guarantees that a numeric value converted to a string. Look at using things like DateTime::add() or DateTime::modify(). Display the string inside the double quotation marks. You could take that base date, and add on however many days and seconds the “double” specifies. Given that format, you could use PHP’s date functions or even better its DateTime class. I used to do it in C with Double.ToString('0.') is there any methode like that in VBScript. I need to convert it to String with only two decimals places. Convert string array to double array in VB.NET. ![]() Code: Private Sub Command1Click () Dim x As Double Dim y As Integer x 7 y x / 2 Debug.Print y Y here will be 4 y x 2 Debug.Print y here Y will be 3 End Sub. It may also be worth noting that / will round the result and will not do rounding. Thus there could be many digits after decimal places. Is there a way to convert string to double arrays as easy in c. Re: VB6 Two Decimal Places and Comma Formatting. Here is the code: Dim Zpos as double Dim word as string '-12.9' Zpos Convert.ToDouble(word) But I got error: System.FormatException: 'Input format is incorrect.' UPDATE. I need to format a double number which is result of division. For example the corrected string:ģ1 81 32 82 33 83 34 84 35 85 36 86 37 87ģ1 81 32 3F 33 3F 34 3F 35 3F 36 3F 37 3FĮven though the UniToAnsi routine is almost twice as efficient as the StrToByte routine, for me it was not worth the risk of doing a double conversion.It looks to me like the “double” is in OLE Automation date format, where the integer part is the number of days since the base date (midnight Dec 30 1899) and the fractional part the fraction of the day (e.g. I have a string with number with decimal point like '-12.9' and need it convert to double. If you pass an already corrected string through this routine again, it changes the corrected characters to &H3F ("?"). The advantage of this routine is that it not only returns the byte array, but also the corrected string. Looping through this routine 10,000 times took an average of 37.4 ms with a spread 16 ms. Finally found a working function to convert the hex to double: Function HexToDouble (s As String) As Double Try Dim bytes As New List (Of Byte) For i As Integer s.Length - 2 To 0 Step -2 bytes.Add (Convert.ToByte (s.Substring (i, 2), 16)) Next Return BitConverter.ToDouble (bytes. I use : Convert.ToInt32 (TextBox1.Text) Convert.ToInt32 ( ()) Convert. ReDim Preserve UniToAnsi(UBound(Buffer) - 1) I am trying to take text from a TextBox control in a webpage and then convert the string into both doubles and integers. If UnicodeToAnsi(AnsiString, VarPtr(UniString)) = 0 Then Private Function UniToAnsi(sUnicode As String) As Byte() Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long) So the full operation in one line code is txtSum.Text CStr (CDbl (txtFirst.Text) + CDbl (txtSecond.Text)) Share. So you do CStr () on CDbl (txtFirst.Text) + CDbl (txtSecond.Text). Private Declare Function AnsiToUnicode Lib "ntdll.dll" Alias "RtlAnsiStringToUnicodeString" (ByVal DestinationString As Long, ByRef SourceString As ANSI_STRING, Optional ByVal AllocateDestinationString As Byte) As Long In order to assign the result of that ADDITION to a textbox control, you need to convert it to String type. ![]() Private Declare Function UnicodeToAnsi Lib "ntdll.dll" Alias "RtlUnicodeStringToAnsiString" (ByRef DestinationString As ANSI_STRING, ByVal SourceString As Long, Optional ByVal AllocateDestinationString As Byte) As Long
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |