Adding the Windows Form template to my full game as a way to read a text file when ever its called. I add a picture box to the form and what comes up is Value cannot be null. Parameter name: docData I looked around the Interwebs and it seems to be a problem with XNA (4.0) and how its missing things that make picture box work. How do I work around this to add a image to the picture box?
I will start from the beginning. I create a Windows Game(4.0), name it PictureBox. I add the Windows Form, name that Form1.cs. I add in the picture box. I then open up the properties menu, click on Image and it gives me the null. I have done nothing yet, but still this error happens.
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I'm working with a Windows Forms Application (.net/c#)
Using MetroFramework. Home page contains some MetroTiles. I need to focus on first tile when I launch Home page.
I Can do this focus is working fine. but it could show any indication for selected/focused tile at all. I could not find any properties.
In above image back Tile is selected now. but could not identify this as user and when I press 'enter' BACK button functionality is working fine. Same for other tiles also. Please help.
There is no property, but you can use the 'selected' event to change something yourself, like a slightly changed color or drawing a thin line around it.
As far as I know Metro still hasn't a built in a functionality for this case.
So try to use the workaround if possible.
I am writing a Windows Phone Application in C# and on my application page i have an image object that is currently filled with an image. However i have another image object on the same page as well as a button object. What i want to do it click the button, and once i have done so i want to copy the image from the filled image object and paste it into the blank object.
Is there a way of doing this, i read something about the use of a bitmap to do so but i'm not sure how to do it? Any examples or ideas of what code i could use would be greatly appreciated.
You can remember Image.Source and pass that to the other page and set it as a source for another image control.
It also depends on how you are filling the first Image control. If you are in the control of filling both controls, then you can just as easy use the same code to fill both controls.
I created a windows form to display text in a richtext and then added a picture box to add some color to it. at the moment when I load up the form it looks like this:
The dot above the rich text is the location of were I added the picture box, at the moment when I try to add an image to picture box it gives me an error: Value cannot be null. Parameter name: docData. I get this error by going to the properties of the picture box and to Image witch is labled (none) at the moment.
How do I fix this problem that I am having. (I use C# 2010 Express, XNA Game Studio 4.0, Windows Game(4.0))
This seems to be a Windows Game (4.0) issue. See the answer on this page. You could try to set the image in your code like this:
pictureBox1.Image = Image.FromFile("path/somefile.jpg");
According to this page, this problem is a bug that hasn't been fixed.
Is there any trick available using which I can copy text from Windows form title or labels on windows form?
We should be oracles to understand the question. For my open mind he's asked about access to text from runtime. For example read the text from window or label under mouse cursor.
For this case you can use Reflection for some functions from Win32 like GetWindowText
You can go to YourForm -> YourForm.Designer.cs -> right click, and see code in solution navigator. This will give you the code of the Form that you've created, having everything that the form has (events, titles, texts, etc, etc).
So, just grab the text from here, you can copy it to another variable in another place and use it, pull it via : Form inheritance, or whathever fits more to your needs.
Remember that changes on YourForm.Designer.cs can make that the "View design" command throw errors and end not showing the design of your form, or those changes can be auto-deleted when clicking "View desing", but, it doesn't mean that your form is bad and it won't compile.
I'm in the process of creating a pretty simple image viewer.
I've got a Picturebox control to display the image. And I'd like to be able to use the arrow keys to scroll through all of the images in a folder - basically, the way the default Windows picture viewer does. At the moment, I have an Open File Dialog to choose the image to display, but I'm not sure where to go from here.
Pretty new to programming, so any help would be greatly appreciated.
:)
Have a look at the KeyPress Event, you can get the information about the pressed key in its KeyPressEventArgs.