C# - Preserve Something I Drew On A Form?
Dec 20, 2009Basically I drew something on a form using Graphics. Now if I move a window over the form the stuff I drew gets erased.Is there a way to preserve the drawing?
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.net - Preserve Objects Between Wcf Calls?
Dec 13, 2010This should be fairly basic, but say I have a Public property as local variable on my WCF service, and I set this in one call to the service. Is there a way to preserve that data for another call to the service? (Without writing the data to xml or a db, and re-referencing it or anything like that)
Executing the calls from the Winform:
Public Class ClientSideWinForm
Private proxy As ServiceReference.Client
Private Sub Client_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[Code]....
How To Preserve A Linq Querry
May 12, 2010If I write
[code]...
Look Preserve Returns In Richtext Box?
Feb 23, 2011I 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.
View 6 RepliesPreserve Columns At DataGridView?
Sep 1, 2011I�m migrating a project from VB6 to VB.NET 2010 Express. Im replacing msflex grid with datagridview. But i�m not quite familiar with it. Im not using datasource. This will be done (far) latter.
So far i�m filling datagridview by code reading a recordset from mdb. Works fine.
The problem is that, I have defined the columns at visual studio designer mode, without using any code. When I open my mdi child form for the first time it works. But If I close this form and open it again a error occurs because it loses the defined columns.
how to preserve columns defined at design after close de form?
Preserve EOF With System.reflection?
Jun 1, 2011Im using system.reflection to inject a managed (.net) file directly into memory.This injection works with other managed files, but this file has data in the EOF and it wont run without that data.
View 1 RepliesAsp.net - .tostring() Preserve Leading Zeros
Oct 18, 2010Converting an object .tostring() removes the leading zeros. The object is not a fixed length, so I can't do object.tostring("0000000") where the number of zeros represents the fixed length.
An example object value is "0357" when I convert that object .tostring it becomes "357".
Is there a method for keeping the leading zeros where the length is not known?
Preserve A Collection Even After Application Exits?
Jul 23, 2009I need to preserve a collection even after application exits. In ASP if i use application object this can be acheived. But in windows application what could i do to preserve collections?
View 4 RepliesPreserve Formatting From NumericUpDown To String?
May 15, 2012My 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.
Preserve Values In ASPX Page?
Feb 21, 2011I am trying to figure out how to preserve the values of the controls on this page (just the user-submitted commission value and the sales region (eastern is 10% and western is 20%)).[code]...
View 2 RepliesSort Arrays And Preserve The Current Key?
May 17, 2011I have a situation where I need to sort arrays and preserve the current key - value pairs.
For example, this array:
(0) = 4
(1) = 3
(2) = 1
(3) = 2
Needs to sort like this
(2) = 1
(3) = 2
(1) = 3
(0) = 4
Retaining the original keys. Array.Sort(myArray) sorts into the right sequence but doesn't keep the indexes. I need a variant that does.edit Using the links, this seems close to what I want. Do I just need to remove the extra brackets to convert this to vb.net?
[Code]...
VS 2010 Array With Redim Preserve?
Apr 4, 2012[edit]Sorry I left a bad title in this thread - confusing![/edit] Been a long time since I used an array - they are so limiting...But I need to build a simple string array - that I'm passing to a C/C++ function.
Is there any other way to do this other than keep REDIM PRESERVING??
[Code]...
Asp.net - Preserve Data-structure On AJAX Postback
Dec 29, 2009[Code]...
The first time the page loads my structrure is filled correctly. After an AJAX postback all the structure fields are setting to nothing. (It seems that the Dim OldPInfo As New PInfo is called again), but i should better ask the SO Experts.
C# - Adding A Way To Preserve A Comma In A CSV To DataTable Function?
May 17, 2010I have a function that converts a .csv file to a datatable. One of the columns I am converting is is a field of names that have a comma in them i.e. "Doe, John" when converting the function treats this as 2 seperate fields because of the comma. I need the datatable to hold this as one field Doe, John in the datatable.
Function CSV2DataTable(ByVal filename As String, ByVal sepChar As String) As DataTable
Dim reader As System.IO.StreamReader
Dim table As New DataTable
Dim colAdded As Boolean = False
[Code]...
C# - Preserve RichText Formatting When Storing In A Database?
Aug 11, 2009I'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]....
Class Variables - Preserve The Last Window Position
Jun 4, 2011I have two forms that are called by the main form. One is named frmEdit, and is invoked by the ShowDialog (modal) method. The other is named frmSearch and is invoked by the Show (non modal) method. In both cases I want to preserve the last window position so each form (class) begins with Public Class frmEdit (or frmSearch):
Dim lastx as Integer = -1
Dim lasty as Integer = -1
in the Shown event handler for each form I have the code
If lastx >= 0 Then
Me.Left = lastx
Me.Top = lasty
End If
and in the FormClosing handler I do
lastx = Me.Left
lasty = Me.Top
What I don't understand is why the frmEdit (modal) form remembers its previous position but the frmSearch (non-modal) does not. frmSearch always invokes with lastx and lasty equal to -1.
Excel Does Not Preserve Datetime Format From SQL When Using QueryTables
Mar 9, 2010I'm not sure whether this is that right place to post this, please could you advise me of where to post it if not.I have the following code in Excel 2007 VBA querying a SQL 2005 database (saves to an Excel 2003 file in the end, hence the APP):[code]This imports the required data fine, but doesn't keep the datetime formatting that is in the SQL database. If I do the same connection manually using any of the 'Data - From Other Sources' connections it keeps the datetime.I know I can format the sheet after importing the data, however there are about 50 columns on 7 sheets, all of the dates are in different places in the sheets and there are descriptive flags which I don't want to be converted to dates, so I can't just convert the whole sheet.I also am aware that if I convert the datetime to an nvarchar(10) it does keep the date in Excel, but not as datetime, just a general format.So, am I missing a simple QueryTable option that would do this for me automatically?
View 2 RepliesForms :: ReDim Preserve Multidimensional Array?
Jun 7, 2009with a function to redim preserve a multidimensional array (2d) and change both dimensions, also it would be a
View 3 RepliesPreserve An Array Inside A Class Method?
Mar 30, 2010I have been learning about OOP and classes from a book and one of the question is the book has asked to create a simple Saving/Checking accounts Program. The question says that most of the functionality must be done through an Accounts Class, and this Acoounts class must inherit certain private fileds from an base class 'Transaction.
The question also says that data from the Saving/Checking accounts Program must be read to and from a text file, and these functions must be done within the Acounts class.
i have done everything the question asks to the best of my knowlegde and understanding but when it comes to storing and retieving data from the textfile i cannot utilise the array i created to store the textfile data onto it.
Bank Account.Write a program to maintain a person's Savings and Checking accounts. The program should keep track of and display the balances in both accounts, and maintain a list of transactions (deposits, withdrawals, fund transfers, and check clearings) separately for each account. The two lists of transactions should be stored in sequential files so that they will persist between program sessions.
Consider the form in Figure 11.12. The two dropdown combo boxes should each contain the items Checking and Savings. Each of the four group boxes corresponds to a type of transaction. (When Savings is selected in the Account combo box, the Check group box should disappear.) The user makes a transaction by typing data into the text boxes of a group box and pressing the button. The items appearing in the Transactions list box should correspond to the type of account that has been selected. The caption of the second label in the Transfer group box should toggle between "to Checking" and "to Savings" depending on the item selected in the "Transfer from" combo box. If a transaction cannot be carried out, a message (such as "Insufficient funds") should be displayed.
The program should use two classes, Transaction and Account. The class Transaction should have properties for transaction name, amount, date, and whether it is a credit (deposit) or debit (withdrawal/check). The class Account, which will have both a checking account and a savings account as instances, should use an array of Transaction objects. In addition, it should have properties for name (Checking or Savings) and balance. It should have methods to carry out a transaction (if possible), to display the list of transactions, and to load and retrieve the set of transactions into or from a sequential file. The events InsufficientFunds and TransactionCommitted should be triggered at appropriate times.
Hint: In order for an Account object to display a list of transactions, a list box should be passed to a method as an argument. The method might be declared with Sub EnumerateTransactions(ByVal lb As ListBox).
Here is my code. I am sorry this code is basic and unedited.
Public Class Form3
'load contents of Text file into the listbox when first loaded
'store data in file into array of accounts, record no. counts
[code]....
Read Csv File Into Dgv And Preserve Leading Zeroes.
Oct 7, 2010I am writing out a CSV file in a VB.NET Windows Application. It is a string, like this:99,Company,00666,TBDOn another form, the user can browse to this file and open it.When he does, I use the Microsoft Jet OleDB provider and read this file into a datagridview. It displays the four columns in the grid, but it truncates the two leading zeroes on 00666 and displays 666.I need those leading zeroes. I tried writing out the string like this:99,Company,'00666,TBD(notice the leading single quote before 00666, like you would type in an Excel cell to indicate it was text), but then when the four columns are displayed in the grid, I have the single quote and the two leading zeroes. I don't want the single quote, I just thought I could use it to indicate text.So my question is how can I write out a string of leading zeroes and have them read into the grid preserved?
View 10 RepliesUse Substring With Copy-of To Preserve Inner HTML Tags?
Aug 2, 2011I have some XML like this:[code]...
Here is the problem. I lose the <p>, <strong>, <br /> and other HTML tags inside the <story> tag whenever I take the substring. Is there any way to get the first 500 characters of the story tag while keeping the inner HTML tags?
VS 2008 Open CSV In Excel And Preserve The Leading Zero's?
Apr 27, 2011Is there a way to open an CSV file in excel completely as text so my leading zero's don't fall away.
It needs to be done in vb.net and it neets to be opened in excel 2007 or later.
VS 2005 Merge / Append Two RichTextBox's And Preserve Formatting
Jul 22, 2009I 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).
.net - Copying Multiple Worksheets Simultaneously To Preserve Chart References?
Apr 22, 2009I've created a two-worksheet template in Excel - the first sheet is for pretty charts, and the other sheet is for the data that drives those charts. I've written a vb.net 2005 app that can dump in all my data on the second worksheet, and the chart worksheet updates perfectly.I would like to do this report several times over in the same workbook. (So the tabs would read 'Person1 - Chart', 'Person1 - Data', 'Person2 - Chart', 'Person2 - Data', etc.)
My solution was to, for every person this report was going to be run for, copy the chart template, and then copy the data template. The problem is that every chart template that is created points to the original data worksheet. How can I set what worksheet each chart worksheet is pointing at?
Preserve State Of Textbox And Checkbox When Application Is Closed And Reopened?
Oct 19, 2011Using VB.Net, how can I save values from a textbox and checkbox when the application is closed? When the user opens the application again, the textbox and checkbox should be filled in with the same values as before.Do I have to save these values in a database, or what other options are there?
View 3 RepliesStoring SQL Strings In XML XElement Instead Of String To Preserve Line Breaks?
Jun 22, 2010When 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].....
Force Visual Studio To Preserve Exponent Shorthand Notation Eg "1e6"
Feb 7, 2012I'm working with Ticks a lot at the moment and when setting a timespan/similar, I find the shorthand exponent notation 3e6 far more easy to read at a glance than 3000000
VS converts to the long form as soon as it tidies up the line.
Is there any way to turn off the editor feature which reformats this?
Variable Is "Nothing" (Snake Game) - Preserve All Previous Coordinates
Jun 4, 2011[Code]...
The problem is I need to preserve all previous coordinates so I ReDim Preserve but I need to do it to the Class. And I try this and the NodeCoords variable is set as "nothing" when i am debugging realtime.
Get Subset DataTable From Main DataTable, But Preserve Primary Key & RowErrors?
Apr 16, 2012I came across a problem with using a BindingSource as my DataGridViews.DataSource. Whenever I applied a filter to a column in the BindingSource and the user makes changes that don't match the column filter the DataGridViewRows would automatically disappear. A similar thing would happen when applying a Sort to a column. If the user made any changes the DridGirdViewRows would automatically sort causing rows to be moved around. This was not ideal for my application and there isn't anyway to stop this from happening with the BindingSource.
To correct this issue I have to use subsets of data. I use a DataView to apply the filter and sort to the main DataTable, which creates the subset DataTable.The problem is when I use the DataView.ToTable method I loose the Primary Key and RowError information. So I have to reapply this information everytime the user filters or sorts the DataGridView.Is there a better way to get a subset DataTable?[code]...
Preserve Existing Array Of Booleans And Add 3 'False' Values To End Of Array?
Feb 1, 2011As per this illustration, I'm trying to increase the size of an existing array from 111 to 114 to be consistent with existing code. I need topreserve the existing values and add 3 new items to the end of the existing array of booleans,
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