Develop Reference

Using a Resource Image as the value in RDLC Parameter

I'm trying to pass an image as a parameter to an Image in a RDLC Report. I tried using the following:
string imgPath = new Uri("pack://application:,,,/Resources/default_product_img.png").AbsoluteUri;
string imgPath = new Uri(AppDomain.CurrentDomain.BaseDirectory + "pack://application:,,,/Resources/default_product_img.png").AbsoluteUri;
string imgPath = new Uri("/Resources/default_product_img.png").AbsoluteUri;
string imgPath = new Uri(AppDomain.CurrentDomain.BaseDirectory + "/Resources/default_product_img.png").AbsoluteUri;
string imgPath = new Uri("pack://application:,,,/Resources/default_product_img.png", UriKind.Absolute).AbsoluteUri;
string imgPath = new Uri(HttpContext.Current.Server.MapPath("~/Resources/default_product_img.png")).AbsoluteUri;
string imgPath = new Uri(HostingEnvironment.MapPath("~/Resources/default_product_img.png")).AbsoluteUri;
but the display always show the red X when I run it. I managed to make this work, but the source of the image is in the same level as the .exe and not inside it.
I also tried creating a BitmapImage, but ReportParameter() only accepts strings.
Is there a way for this to work? Or should I just copy it beside the .exe file?
Things to Note:
The image source is set as External
default_product_img.png is inside Resources folder and has a Build Action of Resource
The parameter name is set as the value in Use this image:

Take the image as a bitmap and save it to a memory stream then convert the memory stream into a base64 string. Pass this string into the parameter and use that parameter as the image. In the RDLC set the image source to be database and make sure the mime type is a correct match for how you saved the bitmap to the memory stream.
string paramValue;
using (var b = new Bitmap("file path or new properties for bitmap")) {
using (var ms = new MemoryStream()) {
b.save(ms, ImageFormat.Png);
paramValue = ConvertToBase64String(ms.ToArray());
}
}
Or if you want to keep it as an external file set the image source to be external in the rdlc and pass the path to the image as file://c:\site\resources\default_product_img.png it will need to be an absolute path and you can use Server.MapPath to convert the web relative path to an absolute local path then just make sure you have file:// at the beginning of the path so the report engine knows it's a local path.

function has stopped working" Error in running the code

I have a windows form application which works with text file data sets that I tried to make portable (ie: To run the application from external hard drive or pen drive does not need to copy the data sets into the C:\ drive directly.
I changed
StreamReader fileitem = new StreamReader("c:\\dataset.txt");
into
StreamReader fileitem = new StreamReader("dataset.txt");
and copy the dataset into the exe file path (.../bin/debug)
But it shows an error "function has stopped working"!
Any idea?

Here's a sample of how you can get the absolute path to your executable file:
static public string AssemblyDirectory
{
get
{
string codeBase = Assembly.GetExecutingAssembly().CodeBase;
UriBuilder uri = new UriBuilder(codeBase);
string path = Uri.UnescapeDataString(uri.Path);
return Path.GetDirectoryName(path);
}
}
Sample taken from this answer
If you implement this property you can then update your code to the following:
StreamReader fileitem = new StreamReader(AssemblyDirectory + "dataset.txt");

How to get filepath with Uri without "file:///"

I get an image path with Uri, which is used as the source path in a report. This image is also loaded in an imagebox. The problem is that Uri adds "file:///" to the path. Therefore the image cannot be displayed on the report. How can I get the image path without that portion?

Use Uri.LocalPath:
Gets a local operating-system representation of a file name.
Just tested this in fsi:
> let u = new Uri("file:///C:/Users/Public/Test.png");;
val u : Uri = file:///C:/Users/Public/Test.png
> u.LocalPath;;
val it : string = "C:\Users\Public\Test.png"
Looks good.

If you just want to remove "file:///" from Uri try:
string uriPath =... //your path with "file:///"
string path = uriPath.Replace("file:///", "");

Get IsolatedStorage path for ShareMediaTask in WP8

I have been attempting to use a saved image in IsolatedStorage within the new ShareMediaTask in Windows Phone 8. I am having issues getting an image path from IsolatedStorage. I have successfully used the ShareMediaTask from the result of CameraCaptureTask as exampled in http://msdn.microsoft.com/en-us/library/windowsphone/develop/jj207027(v=vs.105).aspx but I am unsure of how to get the path from IsolatedStorage in wp8.
I was attempting to retrieved an image path using something of the following:
//Combine the directory and file name
filePath = Path.Combine(IsolatedStoragePath, fileName);
Uri uri = new Uri(#"isostore:" + filePath, UriKind.Absolute);
_shareTask = new ShareMediaTask();
//_shareTask.FilePath = #"isostore:" + filePath;
_shareTask.FilePath = uri.ToString();
_shareTask.Show();
Not sure if I'm headed in the right direction or not with this, any advice, assistance, or references would be greatly appreciated! The only similiar link I've found uses xna which I must avoid for this application http://social.msdn.microsoft.com/Forums/en-US/wpdevelop/thread/56c91aa1-26ea-41f7-b5ac-035537419faf/ .

I think the best you can do is to save the photo do MediaLibrary, share it and the delete it immediately after sharing.

your idea i working But after save image we are not able delete image because WP OS not give permission to delete other app item
var mediaLibrary = new Microsoft.Xna.Framework.Media.MediaLibrary();
var location = mediaLibrary.SavePicture(tempJpeg + ".jpg", e.Result);
string Path = location.GetPath();
ShareMediaTask SMT = new ShareMediaTask();
SMT.FilePath = Path;
SMT.Show();

Randomly mapping an image in C# ASP.NET

Quite a bit of looking at this one.
I have an aspx web page with an Image control on it, and I want to load images from my web directory at random to diplay in the image control. The below is the code and how far I have got.
Seems a simple task to request an image file at random and display this in a web page, all I am receiving however is a local filepath (which appears to be no use to the Image Control) and no image on the webpage.
AppSettings.imageUrl returns: "~/Images"
Any suggestions would be appreciated.
protected void Page_Load(object sender, EventArgs e)
{
GetImage();
}
private void GetImage()
{
imgMain.ImageUrl = ResolveClientUrl(RandomImage());
}
private string RandomImage()
{
string mapPath = Request.MapPath(AppSettings.imageUrl);
var rand = new Random();
var files = Directory.GetFiles(mapPath);
return files[rand.Next(files.Length)];

Your RandomImage() method possibly doesn't return file path relative to current page. Either return
string fileName = Path.GetFileName(file[rand.Next(files.Length)]);
return AppSettings.imageUrl + fileName;
and then resolve it or resolve it right away
string fileName = Path.GetFileName(file[rand.Next(files.Length)]);
return Request.MapPath(AppSettings.imageUrl + fileName);

Do a View Source on the resulting page and see if the <img src="..."> is getting set to a sensible value.
On further investigation it seems that ResolveClientUrl takes a relative URL, not an absolute file system path. Therefore RandomImage should return something like:
return AppSettings.imageUrl + "/" + Path.GetFileName(files[rand.Next(files.Length)]);

You're getting the file names. The Directory.GetFiles could also be used in non-web application and therefore it would make no sense to treat the files as relative to your website root.
What you can do is get the local path for root of your site like this:
string root = Request.MapPath("~/");
and then remove that substring from the file you selected:
files[rand.Next(files.Length)].Replace(root, string.Empty);
That's all you need.