I am trying to convert a string values into a SqlDbType. My code is able to covert "Text" into SqlDbType.Text without any errors but when I try to convert "bit" into SqlDbType.Bit, I receive the following error: "Requested value 'bit' was not found."The same thing happens when trying to convert "int" into SqlDbType.Int Error Message: "Requested value 'int' was not found."Why will this work for "text" but not "bit" or "int"?
Dim MyType as String = "bit"
Dim sdtype As SqlDbType
sdtype = DirectCast([Enum].Parse(GetType(SqlDbType), MyType), SqlDbType)
I need the first number in uniqueidentifier sqldbtype of one of my table.i should hard-code it in my application since that one is specifial with other records and I do not want to recognize it by its name but rather it's ID.
I didn't like how the SqlCommandBuilder generated it's Update command, so I'm making my own with the following code.. This is a large table and I didn't want to get a concurrency error just because I changed field A a few seconds after someone else changed field F.It works great but as you can see I manually have to exclude the Memo field because this is a TEXT datatype field and so you can't use WHERE for that.
Is there any way to get the sqlDbType for each field so I can use this procedure to easily generate all Update commands I need? I have tried GetType but that returns String for this field..
Dim strUpdates As String = "", strClause As String = "", strColumn As String Dim dr As DataRow = dsDemo.Tables("demo").Rows(bsDemo.Position) Dim sqlCmd As New SqlClient.SqlCommand("", frmMain.cn) For i As Int16 = 0 To dr.ItemArray.Length - 1 strColumn = strColumn.ToString.ToLower
My Data base a a column called BIG VarChar(MAX).I can't find a SqlDbType for my paramter definition in VB.net that matches it.VarChar with no size compiles but does not work.Var Char(MAX) does not compile.
I'd like to convert a string which contains a decimal number into string that contains the binary value, the octal and the hexadecimal value of that decimal number.Afterwards I also like to convert a string containing a binary, octal and hexd. number into a decimal string.Basically I'm looking for the functions:
dec2bin dec2oct dec2hex bin2dec oct2dec hex2dec
I'd not prefer to rewrite a function, I'm sure the framework must have these functions already.
Is there any way to convert null terminated string to normal string.I mean I can easily make a program to find the location of vbnull but there has to be a built in function for that.
how can i convert these datatypes: date to string and integer to string.Because it must be in a string datatype when I display it in a datetimepicker and textbox.
Currently, I'm using the following code to pull info from the management class.
[code]...
I'm also pulling info from the bios, disk drives, video, etc. What I've noticed, is although it runs fine on my pc, it may error out on some pcs since it is hardware dependent.I'm having trouble implementing a check to find if it exists before I convert to a string and add it to my overall string.
I'm working on a mass text replacer program because I'm sick of all the 10-day trial ones out there that aren't very good.The entire program is basically finished (All easy stuff), but now I need to code the actual replace/delete stuff, which I'm stuck on because apparently the way I originally intended to do it is not possible.
The way it works is you load a text file (.txt, .cfg, .ini, .doc, etc.) which opens a StreamReader which writes all the data into a listbox. Then you pick whether you want to replace or delete a string. If you select replace, then you enter the string to search for and in another textbox you enter the string to replace it with.
The way I originally intended to do this was like this:
If o1.Text = "Replace" Then 'The option Replace(txtfile, str1, a1) 'txtfile is the data, str1 is the string to find and a1 is the replacement End If
The problem is, I believe this method requires txtfile, str1 and a1 to be strings, but they're all 1-dimensional string arrays, which cannot be converted to strings, or at least I don't know how to convert them.
A friend told me one way I could do this is to open both a StreamReader and StreamWriter and do the replace/delete line by line as they are entered into the memory and write them to a temporary file which is then copied over the original. I can do this kind of, but I still don't know the proper way of doing the actual replace code because the string to find and the string to replace with are still 1-dimensional string arrays rather than strings.
To be able to sort a dictionary by value I'm using this code:
Dim idCurrentJobs As IDictionary(Of String, Int32) = New Dictionary(Of String, Int32) 'The string in the dictionary represents a jobname and the integer is a counter for how many jobs im currently are running in the application' idCurrentJobs.Add("JobName1", 2)
I have 1 string of 12 numbers separated by a ',' "11.11,22.22,33.33" etc coming in my serial port. One number has so far been 5339, but now its changed to 533d, which causes problems, for reasons I am still trying to work out.
The top numbers are all real numbers ie 0.000 or 00.00 or 000.0, whereas the bottom 3 numbers are Hex FFFFF but just happen to show decimal numbers by 'good luck'.[code]....
I have a CSV file which contains the following string:[code]I split the strings into an array using the following:[code]That seems to work, but now how do I convert the Hex strings to numbers when the string is in the format shown above?
Dim oWeb As New System.Net.WebClient() oWeb.Headers.Add("Content-Type", "application/x-www-form-urlencoded") Dim bytArguments As Byte() = System.Text.Encoding.ASCII.GetBytes("username=username&password=password")
[code]....
m attempting to get the cookies saved then use it for another post data i want to do, but I keep getting logged off in like 1 second.The error is Argument 'Prompt' cannot be converted to type 'String'.for the message box.
I want to convert a md5 value to string but i do not know how can do i know how to convert a string value like "msdn" to a md5 value "8eedb43a46f91747432c28b51f6046" usin this code
Is it possible to convert a string of text from a textbox into Octal numbers? If so, how to convert octal to text and text to octal.
Edit: Oh, now I understand how it works. I thought that hex and octal were 2 different things but really it's 2 different bases. Sorry for the second post
