I was wondering if there is a way of making a picture have the properties of a checkbox. I want to have clickable stars that change color (from white to yellow) everytime the user clicks on them to represent the rating they put on certain foods.
View 5 RepliesI have a question, I can't really find the answer...Basically I have 2 FormsIn form number 1 I have 2 pictureboxes. I want to create a checkbox in form2 that says if checkbox 1 is checked then show picture 1 in form 1
View 1 RepliesI am somewhat new to object oriented programming and am attempting to flatten a Linq object hierarchy by using a shim class.how to initalize a derived class with property values from a base class?I have two objects, a base object with about 100 properties, and a derived object which inherits from the base object and adds a few additional properties beyond those of the base object. My simple constructor creates the derived object, but I am looking for a way to initialize the derived object properties with values from the base object.Right now I am using reflection to iterate over the properties individually and I suspect there may be a better way. The following example shows my shim class constructor for the derived class, and two properties:
newProperty1 - a new string property of the derived class
flattenedProperty2 - a new string property of the derived class, copied from a 2nd-level object of the base class
Code example:
Public Class derivedObj
Inherits baseObj
Private _newProperty1 As String[code].......
Is this the correct constructor approach to flatten the object hierarchy using a shim class? My second question relates to initialization of properties in the derived class. The constructor above creates the derived object, but what is the best way to initialize the derived object properties with values from the base object? The following code uses reflection to iterate over the properties individually, but I suspect there may be a better way.
Code example:
' property names are in the string array fieldNames
'baseObjQuery is an ienumerable of baseObj
'derivedObjList is a list of derivedObj[code].....
Is there a simple way to initialize values for the properties in the derived object based upon the values of the common properties in the base object?
I want to build a MVC helper function for which I pass a Entity Framework object and have it build a select. Generally speaking I tried something like this:
Public Function RenderSelect(ByVal helper As HtmlHelper, ByVal sSelectName As String, ByVal aItmes As Array, Optional ByVal sTitleKeyName As String = "name", Optional ByVal sValueKeyName As String = "id") As String
' open select
[Code].....
However, it isn't working. It would be great to have a way to do this and pass the current entity object.
Dynamic Object Properties in a MVC Helper on a Entity Framework object
View 1 RepliesI have some operations of Picture Boxes etc being performed. After the user finishes with the formatting, I want to give the user an option to print the work.But its the work is not done on the Rich Text Box but on picture boxes. I am not even sure, how many of the picture boxes would be there after the user finishes the job, since I have provided option for dynamically creating picture boxes as well.
View 3 RepliesI am making a lunar lander game that randomizes the terrain for each new game, so each game is different. For my game, I am creating a graphics object that draws a closed curve for the terrain of the game. I am trying to then detect if a picture object collides with the graphics object.[code]...
View 1 RepliesI'd like to have something like:
[Code]...
I am making a application that you enter 3 number one for length, width, and height of a rectangle.It needs to display a picture showing all three.i am using windows form application to do this wil three text boxes to enter the numbers.
View 3 RepliesHow do I say, in an if then statement, If this image is currently displayed in a picturebox then a certain value is assigned or a certain event should happen?
View 9 Replies(my first question) For starters.I am using Visual C++ 2010 I have VERY limited knowledge (I am not sure how to declare a variable or convert to strings.I took a Visual Basic course in school so I do understand SOME basics... just not the right language
I am trying to make a program that can open pictures in its own PictureBox. I have the form already made, and I had it working with a combobox with the list of all the different pictures, a button to load the picture depending on the selected item in the
combobox (MANY MANY if statements), and i also added a previous and next image pair of buttons (200% more if statements). I was happy with it, except whenever I added a new picture I had to add many lines of code... So i figured i can use this openfiledialog
and open them that way.
what i have so far is when i press "btnLoad" it opens the "ofdPictures" {openfiledialog}
what i need it to do is when i select my picture and press "open", it open the image in the picture box "picPictures", which is in my form.from what i understand with playing around with openfiledialog in VB is that the command this->ofdPictures->FileName
makes the selected file a string... but i think i have to make it = a string variable...
now, i think i fixed that by adding to "private: System::Void ofdPictures_FileOk"
[Code]...
Im setting the standard program to .jpg files to my program. So when it starts it shows the picture in a picturebox ofcourse.
My problems:I want the pictures standard size to be the size of the picturebox.Making the picture open in the picturebox?
Is there a way of making a Picture Box have a transparency so that any objects (e.g buttons) that are layered underneath the picture box will be shown through?
Or if there is any other way of getting the mouse coordinates only on the form. So when the mouse cursor is placed at 20,20 on the form it will give back the coordinates 20,20 no matter where the form is placed on the screen
I am making a visual basic project in making a frog jumps up and down . and also indicating its increments.
View 2 Repliesi am making a game in visual basic and when the picture box that you have to shoot resets, sometimes it resets off the form i use this code to make the picture box move randomly.[code]
View 6 RepliesI've been trying to make a grid to test some AI stuff I'm working on. I managed to do it using rectangles and graphics.rectangle (pens.black, rect) by using a vid on youtube, but it made the application virtually useless because of all the memory it was using. I don't need it to be an actual grid, but I do need it to have values as if it was a grid, so that I can issue commands (x,y coords). (I have been searching the forums for over an hour, but all examples are either useless or cant be converted correctly).
View 6 RepliesI want a picbox to move across a screen then back to where it started (for a space invader game:
the following code is what I have for this task.
Code:
Private Sub AlienMovement_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AlienMovement.Tick
If Alien1.Location.X > 20 Then
[Code]....
I can't make it < because thats not logical, can't make it = becasue that doesn't work, can't make it > becasue then it will only bounce back once. Is there another variable I could use?
I'm making a program that generates a picture of armor from a website, this armor is the armor a player is wearing on a game called halo 3. My problem is that I have the list of armor for the two races in the game in the resources and I need to know if this would be the right
Head.items.addrange(my.resources.SpartanH) Head is the combobox SpartanH is the name of the text file in my resources, if I've got my code all wrong, will someone please correct me?
I'm making an application where a user draws a shape on a picture box( this will be saved on a bitmap image), then another user has to draw on that shape (=follow it ) . if the 2nd user goes too far from the line then an error message will appear.
for example( in case i couldn't clarify this well!)the 1st user draws a a vertical line, the 2nd user has to follow it, if-while drawing on it- he gets too far horizontally, there would be the error.
I'm currently thinking of comparing every point by the 2nd user to its equivalent in an array containing the points by the first user.
We bought a DIY security camera, the camera is making automatically mpegs if a movement is recognized. A picture can be made with a delivered program. We have the idea to make a program with the delivered dll files to make automatically pictures.
timestretchDMO.dll
GPIProxy.dll
expDMO.dll
DVCtrl.dll
DSPDMO.dll
I'm trying to create a pivot table by opening an Excel file from my drive.But I'm receiving the error saying "Object reference not set to an instance of an object".[code]
View 1 RepliesI'm having this problem with my code and cannot seem to get past it although it was working fine before. The error is "An error occurred creating the form. See Exception.InnerException for details. The error is: Object reference not set to an instance of an object." The code is:
CODE:
I am trying to get information to be pulled out of a database and show in text boxes on another form (frmviewsdets). The error occurs when it gets to the line frmviewsdets.txtsnumber.Text = rdr("StudentNumber") and even when a breakpoint is applied there it just moves on to the next and so on.
I have tried to show frmviewsdets before I pull the data out of the database beut I get the same message.
I have a DataGridView that collects all kinds of data from my database. This data is then summed up and grouped by name...
I would like to add a column of chckboxes in the front of my DataGridView that does not control anything. This way I have a DataGridView that combines all sorts of info grouped up, and the user may then check the checkbox infront of the spesific data he wants to print.
So it's basically a row selection checkbox....
It detects the color fine and the picture background changes to the color my mouse is pointing at, but when it changes to one of the colors its ment to send me a msg it doesn't..[code]
View 2 RepliesIt detects the color fine and the picture background changes to the color my mouse is pointing at, but when it changes to one of the colors its ment to send me a msg it doesn't
Public Class Form1
Dim color As Integer
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
[code].....
I want to create a solid checkbox that is checked by default, and is not clickable. If you click it, nothing will happen . how to do this?
View 2 RepliesI would like to use code to create a checkbox with default properties and place it at a certain position in a groupbox. For example, i would like to do this by pressing a button and that i can give in the name and tag by use of an imputbox. Also, i have noticed that if something like this is done, these changes aren't permanent and don't apply to the designer nor the code in VB. Is there a way to let the newly created checkboxes appear in the designer? And what about permanently deleting checkboxes by pressing a button. With "Dispose()" it isn't deleted from the designer...
View 2 Repliesi am doing a vb.net windows application. in that i am creating one folder and making it shared and also assigning shared permission to SYSTEM. My code is as given below.
[Code]...
I am having some trouble creating an object array of different object types. Here is what I have so far:
Public Sub New()
Dim b1 As New Book("Book Title 1", "Gold Book Publisher", 1.0, "Bob Jones", "192DJDJD212", "01/02/10")
Dim b2 As New Book("Book Title 2", "Gold Book Publisher", 1.0, "Bob Jones", "192DJDJD212", "01/02/10")
Dim b3 As New Book("Book Title 3", "Gold Book Publisher", 1.0, "Bob Jones", "192DJDJD212", "01/02/10")
[code]....
If I define the array As Book (Public publicationArray(6) As Book) or Magazine (Public publicationArray(6) As Magazine) I am able to access the properties of that class but not both. I think I need to define a type for each array instance but not sure how to do this.
I am trying to create a Public Sub / Function that will allow me to pass certain variables into it and this will affect the output. e.g.
DIV ID = InfoDiv
CSS Class = "Warning"
LBInfoMsg.Text = "An Error has occured"
DIV Visibility = True or False
I would like to type something similar in the code behind page:
InfoMsg(InfoDiv, "warning", "An Error has Occurred", True)
Public Sub InfMsg(ByRef MyDIV As System.Web.UI.HtmlControls.HtmlGenericControl, ByRef CSS As System.Web.UI.WebControls.Style, ByVal strMessage As String)
strMessage = strMessage.Replace("'", "''")
MyDIV.Attributes.Add("Style", "warning")
MyDIV.Visible = "True"
End Sub