.net - Converting CLOB To A Usable String
Oct 8, 2011
I'm writing a tool the retrieves data from an Oracle database. The majority of the fields are VARCHAR2, but there's one particular field I want to retrieve that is a CLOB. I'm trying to convert the text in this CLOB to a string that I can then run a regex against it to isolate a certain bit of information and then display that information in the program's console. Unfortunately, I can't seem to figure out how to convert this CLOB into a usable string. I've tried a lot of different things, but what I've got at the moment is:
[Code]...
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Sep 22, 2009
I would like to convert a image query, found here [URL]..In vb2005.net to the xmldocument which I can then cruise around and grab the data with, current code using the webclient isn't giving me a good xml document to use. Any ideas how I can fix this?
[Code]...
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Jan 21, 2010
I use a richtextbox control on a windows form for users enter formatted text into it and store it in an oracle table clob field. I use clob because data can be longer than a varchar2 field could store. There is no problem when I write it down to database (I write its rtf value using bind variables and OracleClient.OracleParameter) but when I want to read it back to the richtextbox there is nothing in the richtextbox control.
I checked database turns the data as I wrote it down. But the control displays nothing.
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May 31, 2011
i am developing a vb.net 2008 application. I use oledb to connect to oracle is there any way to insert a clob field in oracle from vb.net 2008 ?
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May 5, 2009
I want to add from vb.net a file into a clob column in oracle 9.6.1 (8 mb). When i add the file within a transaction then it goes much longer (10x longer) then when i add it whitout transaction. Why i have to wait so long with transaction object?
Here i have prepared an example code. the first code is without transaction and the second code with transaction. The first code is much faster then the second.
I have the problem only when i want to add the file in a clob column. When i want to add it in a blob column, then i don't have any problem.[code]...
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Apr 10, 2009
I'm having a problem converting a string of letters to a string of numbers. I've tried:
Dim A As String = ""
Dim strOutput As String = ""
Dim X As Integer = 0
[Code].....
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Aug 11, 2009
Okay, so, for school i have a project i need to completely program by the end of next semester. My graduation project. And it needs to be a full-blown piece of software that would be theoreticly usable for a person or company.assignment was simple:make an application, usable by a person or company, that uses databases and VB.NET
so i started brainstorming and i came up with the following:a client-server application where the server runs on the company's mainframe and it's employees (seeing as it would be an IT company or another company that would use a lot of computer files) can upload to, and download files from, where each file would have a description and additional information (extension, date,emplyees would also be able to exchange private messages so that collegues of the uploader can be notifies that the file they would need is uploaded.
in addition to that there would be an administrator (or multiple) that can overview all PM's (make sure there's no abuse of the system) and administrate the files (delete/edit/...)So really, i have no idea where to begin building this application, so i would think that if i get the interface done, i atleast have an overview of what and how i would need to code.
note: wow now i think about it this seriously sounds more like a website than an application... but still it sounds like a good idea to me and has to be done or else i would not graduate
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Sep 17, 2010
As my company migrates towards the .NET framework from VB6, it looks like we are going in the direction of WPF (my boss is in love with the Office-style Ribbon control). I've been working to mock one of our VB6 applications in WPF and decided to experiment with MVVM at the same time. I'm being discouraged from using an existing MVVM framework, so I guess I need to write my own. The biggest concern right now seems to be a method for registering and managing all my views from a central spot - a manager class - but I'm not exactly sure how to implement this.
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Oct 11, 2010
When I use GetPixel(x,y) I get a string varible of this:
Color [A=000, R=000, G=000, B=000]
How do I convert this to a color?
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Oct 12, 2010
I want to create some reusable code in my forms.The idea is that a class is growing when more subroutines are added so, I need to store the finished subs somewhere to make place for others, this way I don't lose myself searching through the entire class
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Sep 21, 2011
l have just written a vb.net application and would like to install it on the server such that various users would access the central database on the server how would l achieve that in vb.net
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May 15, 2009
I need to know to limit the number of times a radio button can be used. Maybe the number of times the radio button has been used can be stored in an XML file, and when the user wants to reset the counter all they would have to do it delete this file. I really don't know, that's why I'm asking you. But,the program will append a string every time a button is clicked with a radio button selected, I just need to know how to, for instance only allow RadioButton2 to be used in this manner say... 15 times.
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Feb 18, 2009
Correct the problems with this function, and then extend it so that it also returns a usable array of pointers to some structures.
The extended version of this function should: Maintain the same "char *" return type which returns a pointer to a usable, for storing a C string, memory buffer.
In addition, also return a usable array of pointers to structures. This array of pointers is of variable and random length, which must be obtained using GetNumberOfSomeSeqsToGenerate(), which is called, ONLY, from within this new extended version of the function.
The type of these structures and the function that should be used to get these structures are defined as follows:
typedef struct {
char* name; /* '\0'-terminated C string */
int number;
} SomeSeq;
[CODE]...
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May 8, 2012
I have created a class (pasted below in case I did something wrong) for which I want to create an instance that is usable across forms/modules. I can create an instance of the class in a single form/module no problem via DIM User as New User but how do I go about create a public instance accessible from all parts of my program?
[Code]...
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Jun 17, 2009
i am converting a string to double?i would like to know in advanced whether it would case an error to convert a string to a double. for example if i try to convert "hello" to a double, it would give me an error. is there a way for me to know ahead of time whether converting something will cause an error?
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Aug 30, 2010
how to convert a number value to its string value (ie.,1198.00 should be interpreted as Thousand Hundred and ninety eight)
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Oct 29, 2010
I am returning one row from the database, and I want to convert the SQLDataReader to a string format, so I can pass it to my webservice.
Dim rdr As SqlDataReader = sqlcmd.ExecuteReader
If rdr.HasRows Then
rdr.Read()
[Code].....
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Nov 16, 2009
There is a lot on the internet about converting a int to base 2 string, but I need to convert it back.
[code...]
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Mar 23, 2010
I have made calculator in visual basic that can calculate the costs of products. You first select the type of product. Then you insert the dimensions. After that it calculates de costs. The type op products are stored in a Access database. In this database is stored a formula as a string. The problem is that i can't caculate the selected string with the formula and the given dimensions.
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Feb 3, 2011
I am trying to convert a string of binary into hex. I have tried several ways and none have worked. This is my latest try. The code runs but doesn't appear to do anything.
[Code]...
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Mar 10, 2010
I am using the .NET Framework 2.0, and I am trying to code a client bot for a game called Minecraft, Originally written in Java, there have been quite a few people who have made custom multi-player servers for this game, Primarily in C#, or in a language that i've never heard of, such as Pascal.I'm looking right now at sending this:
Packet ID: 0x00 (0) As Byte
Protocol Version: 0x07(7) As byte
Username: "umby25" As String
[code].....
"Byte cannot be converted to 1-Dimensional array of byte"
I don't understand why this whole thing would work in all of the other programming languages, but not Visual basic.I have tried converting the string using the same method that one of the open source C# servers used, and it failed, telling me that the dictionary does not contain that or something.
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Jun 21, 2010
I am having trouble converting a string value to a text box name.The text boxes are created at runtime and I need to get the text value out so I can store them. I keep getting the error [code]
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Mar 11, 2011
How can I convert a string into an array?
The values are passed as a string:
Dim strInput as string
strInput = "Tom, John, Jason, Mike"
My error message is: Value of type 'String' cannot be converted to 'System.Array'
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Sep 21, 2009
I was trying to figure out how to convert a string (that the user would input to the program via a textbox) into actual code for the program to compile. For example, if the user was to enter: (5*100)+(20-3). How could you take that inputted string, and have the program solve it and return the value?
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Jun 21, 2010
I have a combobox that pulls a list of values from a database. When a new entry is entered I want an entry in the combobox to read "New record". However, from what I have seen I can only insert and object, such as a DataRow, into the combobox. Is there anyway I can convert a string to to a DataRow, or some other object and insert it in to the combobox? I know there is I am just rusty on my vb.
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Jan 1, 2012
I'm using AxVLC to try to play a video from my.resources and I can't seem to convert the binary to a string for it to work...This is what I have so far - produces no errors, or results (nothing happens).
Private
Sub
Button1_Click(ByVal
sender As
[code]....
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Apr 18, 2009
I'm trying to convert a chosen color into hex base 6 to save to a config file for later use, and that part works, but when converting back to integer to use for a color, it gives me an error about incorrect base.
Dim hex_color = System.Drawing.ColorTranslator.ToOle(ColorDialog1.Color).ToString("X6")
Dim color_int As Integer = Convert.ToInt32(hex_color, 6)
Panel1.BackColor = System.Drawing.ColorTranslator.FromOle(color_int)
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Mar 25, 2010
The message does not appear if a number is not entered - why?
Dim
IAL As Double
Dim inputIAL As Double
[Code].....
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Nov 2, 2010
I was trying to convert from Double to String and everything working fine. But when I tried some bigger number with fractions in it. I got the number but rounded. I tried something like that:
Dim dd As Double = 1235212435.3453636
Dim str As String = dd
MsgBox(str)
But what I got is 1235212435.34536 instead of 1235212435.3453636
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Nov 3, 2010
I am writing a tic-tac-toe game. The part of the code that I am having trouble with is randomly populating an "O" if the computer cannot win or block.
The code I have is;
Dim square As Integer = 6
Dim middle As Object = "grid" & square
Dim grid As Label
[Code]....
Unable to cast object of type 'System.String' to type 'System.Windows.Forms.Label'
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