Interface And Graphics :: Handle Varying Currency Values In Maskedtextbox
Mar 4, 2009
I am working on a Windows application written in VB with Visual Studio 2005. I have a number of fields where the user needs to enter currency amounts. I am using a MaskedTextBox with the following currency mask. msktxtAssessedVal.Mask = "$ #######.99"
The problem that I am having is that when the users type in the value, the cursor always starts at the leftmost position and appears to force as many digits as the mask. The typical data values can vary anywhere between 9,999,999.99 and 20,000.00. If the users do NOT have a value that has 7 digits left of the decimal point, they need to move the cursor to the correct position before they start typing in the value. These users are used to quickly typing in their data, then tabbing to the next field so the current behavior is not acceptable. We previously used a ComponentOne MaskedTextbox, however, their controls now are no longer free and the boss will not pay!!!
Does anyone know if there is a way for the maskedtextbox or any text control to detect where the user types the decimal and format the data accordningly?
I am working on a VB application in Visual Studio 2005. I have a number of fields where the user needs to enter currency amounts. I am using a MaskedTextBox with the following currency mask. msktxtAssessedVal.Mask = "$ #######.99"
The problem that I am having is that when the users type in the value, the cursor always starts at the leftmost position and appears to force that many digits. The typical data values can vary anywhere between 9,999,999.99 and 20,000.00. If the users do NOT have a value that has 7 digits left of the decimal point, they need to move the cursor to the correct position before they start typing in the value. These users are used to quickly typing in their data, then tabbing to the next field so the current behavior is not acceptable.
Does anyone know if there is a way for the maskedtextbox or any text control to detect where the user types the decimal and format the data accordingly?
My tile-based map editor project. So far, it works really awesome. Here, look at a picture: [URL] And the screenshot is outdated: Now I got the Pencil, Rectangle and FloodFill tools too!, the tilesets are from that popular (well, not so popular) game engine called RPGMaker.
Currently, this is how the map is structured: One ArrayList represents the X coordinates. One ArrayList in each X represents the Y coordinates. One ArrayList in each X,Y represents the tile. The tile is an ArrayList containing three elements: The Image name (Tileset01 in the screenshot), the X coordinate in the image, and the Y coordinate in the image. Those coordinates are from the TILESET01 image, not map.
Getting the idea? How do you locate a tile in the map when it is clicked? First I get the cursor's position on the map picturebox, then convert it to a multiple of 32 (the tiles are 32x32, yes), divide the position X and Y by 32. The results are the indexes I need to get to the tile I clicked.
That method works just fine for me.
When the map picturebox invalidates and needs painting... When that happens, I iterate through each X and Y arrayList. When I get the arrayList that represents the tile, I use it to draw on the map.
For example: Iterating X arrayList.... step 8...... Iterating Y arrayList..... step 3....... Found arrayList with three elemetns: ("Tileset01",32,96) Draw image on the map picturebox, source is "Tileset01" on rectangle (32,96,32,32)... draw it on map picturebox's point (8 * 32) and (3 * 32)
And so on.
Now you understand how I am working with my map editor, how I am locating clicked tiles, and how I am drawing it. Everything goes fine, except for one problem: At some point, the user might want to make a 500x500 map.
That means, an arrayList with 500 elements representing the X tiles. Then an arrayList with 500 elements for each X tile, representing the Y tiles. Then an arrayList in each X,Y pair.
Then multiply that result by 5, because there will be 5 drawing layers. How am I supposed to handle such huge maps?! My app explodes when I set the map dimensions to 500x500! 500x500 is the max setting allowed in my app. I also know that 500x500 map editors are possible, because I have seen others before. With great performance.
Does anyone know how to set the maskedtextbox to a currency format that actually works? I have set the mask to $999,999.00 but the user input looks like this 120,0 instead of this 12.00. It seems like the maskedtextbox would be able to handle this type of input without using the keypress events to alter the text.
I'm drawing polygons,lines,etc. and I have to have the points of each precise - up to 12 decimals. Since a Point only takes integer values, I'm not sure how to handle scaling. I have a working user control, but rounding the decimals so I can put them into points is causing incorrect calculations (area, ect.).
I am developing a software that would scan the image in a picturebox and obtain the rgb values of each pixel in the image and convert each rgb values to HSL values. I am using vb 2008 express edition. I am still a student. All I have done is to obtain the image in a file and paste it in the picturebox. Below is my code. I dont really know how to start with the process of obtaining the rgb values of each pixel and converting them to HSL values and averaging the HSL value.[code..]
Im working on a project that needs to print a report of one client.Everything went smooth untill i came across my multiline input text data.When i display it in the PrintPagePreview the text go's outside my page. Even when im printing it only the halve of my text is displayed. I googled and looked everywhere but i can't get a clear fix for it.
I used to program with Visual Basic 6, so I have alot of old programs that I'm updating, plus I'm learning the new VB2008 methods. I'm writing a program that replaces the old "BitBlit" function which is no longer supported by Visual Basic 2008. It involves three picture boxes, one holds the sprite bitmap, a second holds the mask (silhouette) of the sprite bitmap, and a third has a background image.
drawing text on a window which is not the current form's window.I remember doing this in Win32 api with getwindowdc(handle) to obtain a DC for the Window, then textout() on the DC.
I'm working on a design project where I have to use a Graphical User Interface that contains a drag and drop form. It consists of having a window dropped on a wall. Both of them are images to scale. I would like to know what kind of code I would have to use to show the x and y coordinates of one of the points of my window when dragged so when I drop it, I'm dropping in it on the desired coordinate of the wall.
Ok, I want to create a class that will handle a special rectangle graphic.In my form, I want to have two of these special rectangles. So, basically, I need two instances of that class in my form, right?I manage to initialize two, alright. But, how exactly am I supposed tomanage drawing/graphics etc in a class, and the results to be displayed in my form?
I was wondering if I could elicit some tips on how to procede with an interface design approach.That is. What is a good way to go about establishing a "work area" where one can have multiple "floating forms" in this area.Can you have a form which occupies the entire windows desk top and the other forms "float" in this space? the "floating" forms would need to interact with each other where pressing buttons etc on them would affect other forms on the "workspace") Or what would be a good way to start accomplishing that? Or is there a better way to get the same effect?
I'm trying to make a .dll that contains a lot of basic functionality that a program can use. Currently i am trying to use interfaces to make a lot of this functionallity independend of the program using it but i hit a snag. The Basic idea is that a programmer will create his own object using the interface discribed in my .DLL file. Then implements those functions as he likes. He can then instanciate a controller (found in the same DLL) and sends his custom object implementing the interface to that Controller. The controller can then be started and will take over all the work. I do not know what type of object is send to the controller and idealy i want to program it in such a fashion that i shouldn't care as long as the object send implements that interface.In code I am trying to achieve the following: (quite simplyfied)
.Dll: Code: Public Interface MyInterface '<----Decleration of the interfaceFunction GetData() As Integer Function SetData(Data As Integer) end interface
[code]....
this propperly. I know that the second i set the interface adaptor in the Controller VS comes nagging that it can not be converted to a "MyInterface" Class. Obviously i am doing something wrong. I can change the datatype that the controller expects to the "MyController" type but that would completely ruin the whole idea of flexibillity. I am hoping someone sees what i am trying to do and can point out where i made the thinking error.
Is this where i would post a picture of my interface and get feedback on changes for easier use? If not is there someplace on this forum or any other forum to do this?
So I decided to make my famous tile selector project, but instead of drawing in a form's graphics, do it inside a tabpage.Well, I managed to get it working, but it seems to... flicker.Normally, setting the form's DoubleBuffered property to True would help a lot there, but apparently, the tabpage has no such property.
When I invalidate the tabpage, I draw two images and fill one rectangle.Following past advice, those two images were created before, just once, and are stored in a variable so I don't create them every time I invalidate the tabpage.
I'm trying to read rows in a DataGridView and the following error is thrown up. The DataGridView was filled from an Excel Sheet with a column of currency. Ideally when the For Next loop finds a cell it doesn't like, I want to to ignore and resume the loop. The error message is: Object reference not set to an instance of an object
HTML
Try For Each row As DataGridViewRow In Me.DataGridView2.Rows FirstString = row.Cells(0).Value.ToString
I am new using Vb. I did create an app that accept general customers info, and save it into a database using the bindingsource component(I don't know how to do it with SQL from VB). Everything was fine, but adding a couple of maskedtextbox has become difficult. I don't know how to pass the value of this fields to the database. I used the following code: phonetextbox.text = maskedtextbox.text Leaving the original fields in the form, I see the values on them, but they never goes to the database. Is this just possible using sql command from VB?
I load my picturebox with a jpeg. If I put my DrawObjects() sub into picturebox paint event.When ever a picturebox.refresh or picturebox.visible = true (vb.net seems to draw my DrawObjects() first, then load the jpeg Image over my drawing - erasing drawing) Is there a way to get the picturebox to redraw the jpg image first then draw on it, in picturebox paint event?
I am really hissed off with this control. Does anyone know how I use this control for currency values. I want to set the text to say 1.15 meaning 1 pound 15 pence and the mask control to show 1.15. If I enter 1.1 I want it to format to 2 decimal places 1.10.
I have a project to work with an existing Access 2007 DB table using Access Currency data type fields. I've tried many, many, many variations on what I'm doing, including using a command parameter or using this scheme and trying dOLEc in my command string (as shown below).
Dim dOLEc As Long = Decimal.ToOACurrency(dQ)
It all works fine (db connects, inserts record OK, closes connection) until I introduce any currency variable (WMoney is my example below). Then it returns Syntax Err 5 in INSERT INTO statement. Current VB string for the execute non-query command is:
Dim sdbcommandString As String Dim dQ As Decimal = 8950.13 'control test--no currency field--works perfectly every time sdbcommandString = "INSERT INTO Workers (WFullname,WRay)VALUES('George D. Jones','abcdefg');"
'but add the currency data type to it and it bombs
sdbcommandString = "INSERT INTO Workers (WFullname,WRay,WMoney)VALUES('George D. ZZZZZ','abcdefg'," & dQ & ");"
As I said, though perhaps not too clearly, I've also tried variations on this theme:
sdbcommandString = "INSERT INTO Workers (WFullname,WRay,WMoney)VALUES('George D. ZZZZZ','abcdefg'," & dOLEc & ");"
In all cases, I use the same code to connect to my db and use
OLEdbConnection1.ConnectionString = sDBConnString OLEdbConnection1.Open() OLEcommand = New OleDbCommand(sdbcommandString, OLEdbConnection1) OLEcommand.ExecuteNonQuery()
And I've tried it using variations on this theme where :
sdbcommandString = "INSERT INTO Workers (WFullname,WRay,WMoney)VALUES('George D. ZZZZZ','abcdefg',?);" OLEdbConnection1.ConnectionString = sDBConnString OLEdbConnection1.Open()
[code]....
I need to use to make it work with a currency field?
I made a program that uses the graphics object to draw on a picture box. I used the graphics.fromhwnd(picbox) to draw on the control. The problem is if I minimize the window the drawing disapears. Might there be a way I can the image from the picbox and save it to a bitmap variable ?
I have completed all the code for a loan calculator, but am unsuccessful in displaying decimal variables in string as "currency". I have added the .toString("c2") statement and only get one array to display in currency, then the second array does not round properly. Is there a convert function that will work? Here's my code:
Public Class frmLoanCalc 'Ken Schoening 'Loan Calculator
I'm trying to find a way to force my calculations to round up currency values to the nearest whole pence/cent.By default, rounding will round to the nearest pence/cent, whether this is up or down.I need it to always round up regardless.[code]My client's back office system rounds in this manner which is rather peculiar to say the least, however the prices on his website need to match and to to this they need to be rounded up.The built in ASP.NET Math.Round function only offers the regular rounding(and banker's rounding) and not an option to force rounding up or down.
Why can't a sub implement an interface and handle event at the same time? The following gives my a syntax error:[code]I know I could handle this kind of logic with another method, but that is not the point. I just want to understand the reasoning behind this.
