C# - How To Convert System.drawing.image To System.web.ui.webcontrols.image

Aug 9, 2010

I use to store image in bytes and able to convert it to system.drawing.image but not sure how to render it on page

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When I move some web-based code from VS2008 to VS2010, I find it is different when it is hard to handle the Image class.

Let's take the following code as an example.

[Code]....

As I have already imported the System.Drawing namespace, I still cannot use Image.FromFile method as VS2010 detectss the Image class is in System.Web.UI.WebControls namespace.I have lots of such a kind of code in my project using Image class and I will get messed if need to modify the code from

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Since I also used image in my variable name.

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May 12, 2010

I created image from byte array

System.Drawing.Image newImage;
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I am developing an application that stores images as Base64 strings in xml files. I also want to allow the user to crop the image before saving it to the file, preferably all in memory without having to save a temp file, and then delete it afterwards. In order to display the newly uploaded image, I need to create a HTTP handler that I can bind the asp:Image to. The only examples for doing this online require passing the .ashx an ID and then pulling the image from a DB or other data store. Is it possible to somehow pass the raw data to the .ashx in order to get back the image?

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I'd like to cretae a stub for image As System.Drawing.Image, set expectation as image.Width=250, image.Height=200. Can anyone help me on how to create the image stub in Rhino Mocks?[Code]....

[Code]....

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I have a byteArray which I can only convert into an Image (Drawing.Image) I was wondering how I can display it a webpage. I used memoryStream as I dont want to user to have to download the image. Eventually I will use this to display images in google maps.. I can convert it into a graphic but once again not sure what I will do with it. The Error I have been getting lately is Cannot implicitly convert type 'System.Drawing.Image' to 'System.Web.UI.WebControls.ImageField'

[Code]....

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Using C# I was trying to develop the following two. The way I am doing it may have some problem and need your kind advice. In addition, I dont know whether there is any existing method to do the same.

private static String HexConverter(System.Drawing.Color c)
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C# - "Parameter Is Not Valid" Exception From System.Drawing.Image.FromStream() Method?

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I got a hard time with the Image.FromStream method in my website. The code below works perfect on my computer. But when I uploaded it to the test server, it always gives me "Parameter not valid" exception.

if (!afuImageFile.IsUploading && afuImageFile.HasFile)
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Web Forms :: Convert Interior.ColorIndex To System.Drawing.Color

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I am importing data from Excel sheet to a database. The table in the database has a special column where I store Interior.ColorIndex of each row in Excel. Then I display the data in a GridView. I need its rows to have the same or close colors as corresponding rows in Excel. I cannot find how to convert the color information I store in my database into System.Drawing.Color (in other words, to RGB) to apply to my GridView.

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Forms Data Controls :: How To Convert System.Web.UI.WebControls.TableCells To Float Type

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I have a GridView with geography data in th cells. When iterating through the rows and creating a list and array, I have

GpsPoint[] GpsArray = new
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List<string> LineLista =
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foreach (GridViewRow row
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and I got this:

Compiler Error Message: CS0029: Cannot implicitly convert type 'System.Web.UI.WebControls.TableCell' to 'float'

Source Error:

[Code]....

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I added a button click event to my project as:

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Cannot implicitly convert type 'string' to 'System.Web.UI.WebControls.TextBox

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Unable to cast object of type 'System.Web.UI.LiteralControl' to type 'System.Web.UI.WebControls.TextBox'.

[code]....

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Unable To Cast Object Of Type 'System.EventArgs' To Type 'System.Web.UI.WebControls.FormVi

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Protected Sub FormView1_ItemCreated(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.FormViewCommandEventArgs) Handles FormView1.ItemCreated
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I have this method which does not build, it errors with the message:

Cannot implicitly convert type 'System.Web.HttpPostedFile' to 'System.Web.HttpPostedFileBase'
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Cannot Convert From 'System.Data.Linq.Binary' To 'System.IO.BinaryReader'

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my table column is:

AttachContent varbinary (max)

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i work with visual studio 2005 and asp net 2.0. i have a method method as this :

[Code]....

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How do i import system.drawing into a page. I created a page called pie chart.aspx but instead of just using image of a pie chart i want to use the system.drawings to create a pie chart with atleast 3 distributions or more like, red, green and blue or something. how do i accomplish that. I tried youtubeing and google but nothing really worked. I know its suppose to be in code behind page but how??/

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Draw Text Onto A Jpg And Re-save It Using System.drawing In C#?

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Anyone have good example of how to write text onto a jpg image and resave it using System.Drawing in .NET?

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How To Draw Centered Text Onto A Jpg Using System.drawing In C#

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I am using the following code to draw text onto a jpg image but it requires x/y coordinate percision on where to place the text.

[code]....

How would I go about centering text onto an image? I am guessing it would have to do with defining some sort of container (rectangle maybe?) that is the width of the image and centering the text within that? Not sure what the best practice would be for this.

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