Setting Image Width/Height in codebehind - ASP.NET, C# -

-

I am trying to determine the width and height of images in a dentist in codebehind.

This plan has to do some complex work based on the width / height, so setting the width and height of 50% in the ASPX file is not an option.

For some reasons I always get 0 for width and height. Image1.ImageUrl, though what do I expect any thoughts? Image system Web. UI. Vaibong Image is not a system. Drawing Image. 

  Secure zero data list 9_item data bound (object sender, data list event ARG E) {image image 1 = (image) e. Item.FindControl ("Image1"); Double height = image 1. height. value; Double width = image1.Width.Value; Height = height * 0.5; Width = width * 0.5; Image 1 Het = new unit (height); Image1.Width = new unit (width); }

Remember with a img tag, default Do not set width and height in this case, unless you do not set the width and height , They will be 0 (or undefined). If you need the actual (image, pixels) width and height, then you have to find out that by loading the image into memory,

Depending on the file type, perhaps a decoder in .NET or the ability to load it in advance, load it into bitmap and ask the width and height there.


Comments

Post a Comment

Popular posts from this blog

paypal - How to know the URL referrer in PHP? -

-
I'm new to integrating PayPal with sites, so easily from the service I can use Can the available method be? What am I trying to do, when the user clicks on "Return to my website", I want my return URL to know that the referrer is PayPal so I can send it automatically to the homepage . how to do this? I tried $ _ SERVER ['HTTP_REFERER'] but it does not seem like anything. During the IPN conversation I set the cookie and session (though I am not sure whether I am correcting it or doing this right), but on returning to my website, it does not seem to recognize any session . If I use it by using $ _ SERVER ['HTTP_REFERER'] , then I'm afraid it's a security risk, is not it? If so, is there any other way I remember? help please. Should you really know the referrer? Set the PayPal Return URL to a "secret" URL which is always redirected to the homepage. If someone reaches there and gets redirected without coming from PayPal, then ...
Read more

oauth - Facebook OAuth2 Logout does not remove fb_ cookie -

-
This is used to work so I'm not sure what's wrong the user just logs in to Facebook properly Is capable of Logging problem. I log out the user logout by redirecting them to the php script. $ facebook-> GetLogoutUrl (); When users click on that link, they are logged out from the Facebook page. However, when they return to my site, I find that the FB_ cookie is still there. PHP SDK still gives user FB session details. The strange thing is that www.facebook.com shows that I am already logged out of Facebook. What can be wrong here? Thanks, I've been stumped: (. OK, finally, what did I do? > GetLogoutUrl () with a next = address url on my logout script which will remove the Facebook cookie by setSession (null) .
Read more

wpf - Line breaks and indenting for the XAML of a saved FlowDocument? -

-
Is there a way to format XAM generated when a flow document is saved? Currently, all of this is run simultaneously in one line, and I want to break it into my elements, with line break and indenting it makes it a little easier to read. Here is the code I'm using to save a FlowDocument in a WPF RichTextBox as a XAML file: // entire document around TextRange textRange Create a TextRange side = new TextRange (myRichTextBox.Document.ContentStart, myRichTextBox.Document .contentEnd); // save the file using the file (file stream fs = file. Create (filename)) {textRange.Save (fs, DataFormats.Xaml); } Savings work fine, but as I mentioned, JPAM has been generated, all this goes together, no indentation or line breaks for its various elements Is: & lt; Section xmlns = "http://schemas.microsoft.com/winfx/2006/xaml/presentation" xml: space = "preserve" Tekstelinement = "left" Lainhait = "auto" Hashipineshn = enabled = "false...
Read more