C# - Preserve RichText Formatting When Storing In A Database?
Aug 11, 2009
I've created a rich text box which stored the "textBox.Text" value in an SDF database. The storing works, but the formatting seems to be lost. Is this something that SDF databases can't handle? Do I need to store in binary or something? Not sure how to do that either.I'm using Visual Basic Express Edition with Winforms and writing in VisualBasic.NET btw This is how I store to the database:
Private Sub btnToolStripSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnToolStripSave.Click
Try
Me.Validate()
Me.SangerBindingSource.EndEdit()
[code]....
And this is how I insert the text in to the rich textbox
txtBoxText.SelectionFont = New Font("Verdana", 16, FontStyle.Bold)
txtBoxText.SelectionColor = System.Drawing.Color.RoyalBlue
[code]....
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Feb 23, 2011
I am working on a richtextbox application.When I typed text into it and hit return, the returns were preserved.However, when I opened the page up in my Microsoft Vista notepad.exe program,the returns were not preserved.The text appears as if wordwrap was unselected in my notepad.exe program.I just got one long strings and no returns.How can I fix this problem so that the returns are preserved? when I open the file back up in my richtextbox program, it appears as I had typed it with all the spacing and returns.
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May 15, 2012
My form contains several NumericUpDown controls. These controls show different amount of decimal places. Later in my code I put the different NumericUpDown.Value's in a string array arrStr() like so:
arrStr(1) = NumericUpDown1.Value
arrStr(2) = NumericUpDown2.Value
arrStr(3) = NumericUpDown3.Value
Then I print the array with the File.WriteAllLines function to a text file.
If for example NumericUpDown1.Value = 1.00, NumericUpDown2.Value = 2.30 and NumericUpDown3.Value = 2.124 the file has the following values in it:
1
2.3
2.124
[Code].....
I have tried Format which works, but that formatting method is not convenient as the amount of decimal places is already set for each NumericUpDown. It would be annoying to do the work again, but now with Format.
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Jun 22, 2010
When it comes to storing SQL in code, most people use strings:Dim strSql As String = "Select Foo, Bar From FooBarTable Where Something = @Something"The problem is, when you have very long SQL strings, reading them in code becomes difficult. You can usually split the strings up like this:
Dim strSql As String = "Select Foo, Bar From FooBarTable " & _
"Where Something = @Something"
This causes a number of problems:
[code].....
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Feb 18, 2009
I'm creating a multipurpose chat application for my final year project. The control for typing in messages is a RichTextBox. The rich text (with all formatting) successfully reaches the other side. However, like any chat client, I'm also displaying a complete list of all the previous conversations above the RTB. I've used it as a RTB too. However, I'm unable to separate the incoming message by a new line... I mean like.. each message (with all formatting) on a new line. This is my code on the receiver side :
[code]....
where, ServBox is my conversation box. I also tried changing ServBox to a List Box but the listbox doesn't seem to interpret formatted text....
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Jul 22, 2009
I have two RichTextBoxes, each of which can have any sort of formatting. I need to be able to take the rich text from box 2, complete with formatting, and add it to the end of box 1, preserving the formatting of both box 1 and the appended rich text.
I've not managed to find anything usefull on this anywhere apart from hints pointing to manually re-building the RTF codes for the result (but no actual VB / C# / C code to perform this or similar).
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Mar 21, 2012
I have a vb .net ArrayList that I would like to store in one field on my Ms SQL 2008 database. Is it possible to put it in and get it back out as an ArrayList? I'm guessing i need to break down the Array some how and store it as a string, then rebuild it when reading back as i dont see any datatypes for sql that are for arrays. Which is a bummer for me! edit - The ArrayList stores a set of quote ID's. There is no limit to how big it is so it could hold 1 or 1001 different ID's
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Aug 15, 2011
i am making a project and in that getting storing and loop problems there are two fields serial no and quantity when quantity is entered serial number must be asked then only and the number of times quantity is entered that many times serial number must be asked also serial number is from to too like 1 to 6 or 1 to 5 so i have to taken 2 textboxes serialfrm and serialto to store but now the problem is that i am not able to write proper code for it either it doesn't get saved to the particular name to which both fields belong or it keeps saving without stopping.
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Jun 23, 2011
i am generating a barimage and storing in a database i am able to create a barimage and store in a local drive but while transferring i am facing difficulties my code is
con.Open()
barcode = New BarcodeLib.Barcode.Linear.Linear()
barcode.Type = BarcodeLib.Barcode.Linear.BarcodeType.CODE39
barcode.Data = TextBox1.Text
[Code]....
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Dec 18, 2009
how to store images in database using VB.Net?
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Mar 22, 2010
Hello All,
Can anybody help me, i am having challenges getting collections value into the database
Here is my sample code. but is not working at all rather is crashing the applications
Dim collections As New System.Enrolment.CustomerBiometricsCollection()
collections = Me.PrintCaptureWizard1.ShowDialog()
Dim dbs As New DBClass
Dim mee As String
mee = dbs.ConnectionString
Dim conn As New SqlClient.SqlConnection(mee)
conn.Open()
Dim ds As New SqlCommand("Custoon", conn)
ds.CommandType = CommandType.StoredProcedure
ds.CommandText = "CustBiometrics"
For k As Integer = 0 To collections.Count - 1
ds.Parameters.Add("@TemplateID", SqlDbType.UniqueIdentifier).Value = New Guid(TextBox1.Text)
ds.Parameters.Add("@TemplateIdentifierID", SqlDbType.UniqueIdentifier).Value = (collections(0).TemplateId)
ds.Parameters.Add("@CustomerID", SqlDbType.UniqueIdentifier).Value = New Guid(id)
ds.Parameters.Add("@Template", SqlDbType.Image).Value = collections(0).PrintTemplate
ds.Parameters.Add("@TemplateSize", SqlDbType.Int).Value = collections(0).Size
Dim dr As SqlDataReader = ds.ExecuteReader()
dr.Close()
Next k
conn.Close()
MessageBox.Show("Record Inserted")
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Oct 5, 2011
Here is the code I used to store an image in my database (SQL Server 2008 R2) using VB 2010. The images get stored but the problem is the clarity of the image is lost when retrieved and seen in a picture box.
Public Function InsertUpdateImage(ByRef _SqlConnection As System.Data.SqlClient.SqlConnection, ByVal _Image As System.Drawing.Image, ByVal _ImageFormat As System.Drawing.Imaging.ImageFormat) As Integer
[Code]....
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Nov 27, 2010
I am using an Access database and vb.net 2010. I have created a table in the database with columns for title, datein, dateout and roomnymber. In vb.net 2010 I made a distinguished title = combobox, datein and dateout = DateTimePicker. When I click on F5, an error occurs: INSERT INTO Syntax Error in statement. [Code]
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Jan 30, 2009
I am in front of a great dilemma whether to store files in Database or doing it the standard way. I would choose the second option, but my application will be used by multiple users, so I am doing it by Web Services.
On the one hand, storing in database will be very useful as every user would have access to everything very fast, not caring about file paths, locations and so on.
On the other hand, if this table consists of 1000 files, wouldn't it be a bad idea as there should be some performance loss?
At the present moment, I am using mysql as database, but I am thinking of moving to SQL Server, but I suppose this is not DB Issue.
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Aug 22, 2010
I'm trying to store three images from a form (PictureBox's) into a SQL Database (MSSQL2008) The below does what I want but is clearly inefficient. Any pointers on what to change to improve this?
Private Sub SaveImages()
Dim ConStr As String = "Data Source=SERVERSQL2008;Initial Catalog=NorthPole;Integrated Security=True"
[Code].....
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Jun 20, 2012
i simple want to store the textbox data into the dataset .after that i want to fill using adapter into the sql server table
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Feb 20, 2012
I am using vb.net (visual studio 2010) and have made a form application that uses a login screen. All that works but I am having trouble any firm way to encrypt the passwords in the database. The encryption doesn't have to be very high standard as its just for a college project. Whats the best way to encrypt the password into the database? Or just encrypt the password string, I can then sort out the database end myself.
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Apr 12, 2010
i had a go at the jmc's codebank submissionon this particular topic: [URL]
And the basic concept of doing is that converting the image to a binary before it will be save in a database.
I am using the .mdb database(access 2003)....so what will be the datatype of the field where i will be saving the binary format of the image?
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Jul 18, 2010
I have my form set in french as well, and it automatically changes the text format to use ','. However When I try to insert my values into the database it says cannot convert nvarchar to decimal? Worst case, Is there a way I can disable the numbers from changing to use ',' and just use '.' always regardless what language it is? My working language is vb.net?
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Jun 6, 2011
Entering Username and Password and Storing it to a database in ASP.Net?
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Sep 8, 2011
I had try several type of date format and yet, I stil can't get it right. Below are the coding which had been writen
[Code]....
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Nov 14, 2011
I have to store a image file into my Access database.
For that i've used 'OLE Object' datatype for my field. When i convert the image into byte array and tried to insert it, i got an error saying "Syntax error in INSERT INTO statement"
I want to know what datatype should i use in Access 2007 and how to convert the image to byte array in my vb.net code.
My code is...
Dim conn As OleDbConnection = New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:DBHROsam.accdb")
Dim cmd As OleDbCommand = New OleDbCommand("INSERT INTO Member (ID,mname,fname,image) VALUES (@ID,@mname,@fname,@image)", conn)
[Code].....
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Sep 5, 2009
what is alternative way for storing data if connection of database fail in vb.net application
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Aug 9, 2011
I am about to develop an application in vb.net 2010, until now I used to connect to database server to manage my data . Now i need to develope an .exe which could run in any pc, so I need somehow to store the data in a local database which is embedded to my application, I see .NET has a local database. My question is a right choice to use a local database for these kind of solutions?
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May 3, 2012
I have my form set in french as well, and it automatically changes the text format to use ','. However When I try to insert my values to the database it says cannot convert nvarchar to decimal? Worst case, Is there a way I can disable the numbers from changing to use ',' and just use '.' always regardless what language it is?
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Feb 28, 2012
I am trying to store a .png image inside a database using SQL Server 2008. I have done this just fine using mySQL but for some reason it looks like this when placing it into ms SQL Server:
[Code]...
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Dec 29, 2009
I am developing an application where I need to make use of multiple values during the run time. These values are configuration setting of the application as specified by user and are stored in a database (more than 50 in number containing strings/boolean and numeric). I have defined a structure to contain all the variables that will store this information. At start of app, I retrieve all values from database and fill the structure which i can use when required. I am wondering if it is a good idea to declare too much of variables and keep them alive during the run-time as compared to retrieving the values from database every time it is required?
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Nov 20, 2009
When I store a binary file in a MS Sql table & then retrieve it & write it back to disk the new file is always 1 byte bigger than the original file, no matter what the file type. Is this normal? The files all open fine in their respective applications, but I'm just wondering where the extra byte comes from & if I'm doing something wrong in my code.
Using con As New Odbc.OdbcConnection(conString)
Using cmd As New Odbc.OdbcCommand("insert into mytable values (?,?)", con)
Using fs As New IO.FileStream(filename, IO.FileMode.OpenOrCreate,
[Code].....
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Aug 23, 2011
i am trying to write a program which reads a data from the database and perform some calculations. what i am intending to do is when a user selects an item from a listbox and clicks the submit button the program, calls a function to calculate using the value stored in the database and display the result in a textbox.the problem is i cant store the data retrieved from the database into a variable so that the calculations can be done. i am using vb and microsoft sql server.can anyone tell me how do i store the data retrieved by the query into a variable.
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Nov 27, 2011
i want to format a selected text in a richtextbox such as bold and italic i use this code to do that
With Me.rtbdoc
If .SelectionFont IsNot Nothing Then
Dim currentFont As System.Drawing.Font = .SelectionFont
[code].....
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