C# - Convert ImageUrl To Byte[] For Caching

Dec 17, 2010

I have an image that I capture from an ip camera and post it on a webpage to an image tag. Now I would like to convert to access the picture so that I can save it to our cache blob. Here is my code:
asp tag:
<asp:Image ID="imgPhoto" runat="server" ImageAlign="Middle" />

code behind image assignment:

imgPhoto.ImageUrl = "";

View 1 Replies

Similar Messages:

Mobiles :: Convert String To Byte (not Byte Array) And Store On RFID Tag?

May 8, 2010

I am develping an application that integrates with an RFID kit. The problem is, the kit comes with an .cs class that accepts data stored in a byte array however, each information stored in the array respresents an int. I wanted to store String information in each array but, my research suggest that a String itself can be converted to a byte array and not a byte....here the code from the .cs class:

byte BlockNo = 0;
byte[] BlockData = new byte[16];
byte ReturnCode = 0;

Each t_b*.text respresents an int. Is there a way I can stored a String in a single byte block?

View 1 Replies

Byte B = (byte)(lstEndPoints[0]); //Error Cannot Convert

Jan 24, 2010

ArrayList lstEndPoints

0 element "0x01"
1 element "0x82"
byte b = (byte)(lstEndPoints[0]); //Error cannot convert

View 7 Replies

DataSource Controls :: "Fail To Convert Byte To Byte[]" When Storing Image To Database

Apr 3, 2010

Not sure if this is the correct section to ask this but this is regarding storing datatype problem.im trying to convert an image file retrieve from a folder and convert it to Byte so that i can save into database

In below function i retrieve and convert the image from a folder to byte


Then i set ImageUrl in PageLoad

My image datatype in database is image

View 1 Replies

Convert X509Certificate2 To Byte[] In C# (ASP.net)

Nov 30, 2010

I'm trying to convert a X509Certificate2 to byte[] and I'm using the function Export this way:byte[] certificateBytes = pfx.Export(X509ContentType.Pkcs12, password);pfx is a X509Certificate2 instance obtained from the certificates in store My of the LocalMachine.I get an error saying that the handle is invalid.the password is correct and instance pfx is not null.

View 1 Replies

Convert Byte Array Into String?

Feb 17, 2010

i need the to convert the byte array in to string. The byte array is a two dimentional array. Is it possible to convert?

View 3 Replies

C# - Convert Byte Array Into Datatable

May 21, 2010

In my aspx page I have a HTML inputfile type which allows user to browse for a spreadsheet.Once the user choses the file to upload I want to read the content of the spreadsheet and store the content into mysql database table. I am using the following code to read the content of the uploaded file and convert it into a datatable in order into insert it into database table.

if (filMyFile.PostedFile != null)
// Get a reference to PostedFile object
HttpPostedFile myFile = filMyFile.PostedFile;
// Get size of uploaded file
int nFileLen = myFile.ContentLength;
// make sure the size of the file is > 0
if (nFileLen > 0)
// Allocate a buffer for reading of the file
byte[] myData = new byte[nFileLen];
// Read uploaded file from the Stream
myFile.InputStream.Read(myData, 0, nFileLen);...................................

View 1 Replies

Web Forms :: Convert DataSet To Byte Array?

Aug 19, 2010

How can I convert DataSet to byte array

View 2 Replies

Convert Excel Workbook Into Byte Array?

May 16, 2010

I have datatable with records and i have existng Excel file in my application temp folder i want to export datatable records in this excel file workbook and i want to convert this excel workbook into byte array and i want to send this byte array in reponse.write to user to give download excel file option

View 6 Replies

Convert HexaDecimal Expression To Byte Array?

Nov 24, 2010

I have a richtextbox and i wrote it this text and add pictures like below.[img] symbolize images.


askdiaksid sasidla,isdlasdliasldassldi
asdasdasd als dksalsdksals kdsal skdsalsdlasdkalsskdsa

if we get those images hexadecimal rtf codes we have "0ef1caf...........0d" billions characters like this.I what to convert this hexadecimal explanation to byte array to save images one by one to where i want.

View 5 Replies

Web Forms :: How To Convert Image In My Form To Byte

Apr 2, 2010

i got an image display in my system, note that it is not an uploaded file, it is display in <asp:Image> form

My question is, how do i use that image and convert it to a byte data so that i can save into database?

View 22 Replies

Web Forms :: Cannot Implicitly Convert Type String To Byte

Aug 31, 2013

Error 1 Cannot implicitly convert type 'string' to 'byte' 

OleDbCommand cmd = new OleDbCommand("select r1,r2,r3,r4 from ope", Con);
OleDbDataReader dr = cmd.ExecuteReader();
if (dr.Read())
y[0] = dr[0];
y[1] = dr[1];

[Code] .....

View 1 Replies

Convert Datatable To Byte Array To Send As Email Attachment

May 13, 2014

Every morning we send out an email with a text file attached. This is a manual process so I am automating it.I am using an internal mail web service. Its last two parameters are a byte array which is the file contents and a string which is the file name. I passed (...gbytes, "test.txt") and the only thing wrong with it is text.txt is XML. I want it to be text (csv is fine because there is actually four columns that come from a datatable).So I am assuming what's making it XML is this code:

System.IO.MemoryStream stream = new System.IO.MemoryStream();
System.Runtime.Serialization.IFormatter formatter = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();
formatter.Serialize(stream, ds.Tables[0]);
gbytes = stream.GetBuffer();

I am trying to search the Internet for how to convert a datatable to a byte array, but I can't find how to have it be text instead of XML. Also, another parameter our WS takes is a flag to say if it's XML, and I am setting this to false.

View 3 Replies

Web Forms :: Convert System.Drawing.Image Variable To Byte Variable?

Oct 7, 2010

I got a variable of type System.Drawing.Image and need to convert it to a variable of type byte so I can store the image in the database. Can someone show me how to do that in VB.NET code.

View 2 Replies

State Management :: Partial Page Caching (user Control Caching) And Button Events?

Jun 14, 2010

I have a page with a number of user controls, In one of my user controls I have a button event. I turn on output cache for the user control that has the button and vary by control using the ID property of a hidden field control in the user control. whenever I turn on the output cache my button event doesn't fire.

View 2 Replies

WCF / ASMX :: Implement Caching Using System.Web.Caching?

May 15, 2010

how to implement caching in wcf service using System.Web.Caching

View 2 Replies

Set The ImageUrl Programmatically?

Sep 6, 2010

I have a repeater control and under the ItemTemplate, I have Image control. Anyway the old

How can I set the ImageUrl programmatically?

Anyway, the old html code I have was like this:

<img src="<%# Eval("ImageSource") %>" alt="" />

But I want to check if the image exists in directory or not then I can setup with temp image.

I have a code but .. it's not really working so there's no sense of showing it here. Should I use ItemCreated or ItemDataBound event?

View 4 Replies

AJAX :: How To Set Image.ImageUrl In JS

Feb 7, 2011

I have an update panel with an image control inside. At some point in JS I try to assign the image source, by doing

$("#pvwImage").attr("src", imageSrc);

The image refreshes correctly and shows me the assigned image. However when I click on a button that raises a postback, by the time it gets to the server the ImageUrl property of the image is still the default one, so my changes in JS didn't have any effect.


View 11 Replies

Web Forms :: How To Change The ImageUrl Name

Jan 13, 2010

i want to add imageUrl name how i can add this before that my code was ImageUrl="~/images/update.gif" now i have change it to ImageUrl="<%=SitePath.Path.StaticPath()%>update.gif" <asp:ImageButton runat="Server" ID="BtnUpdate" ImageUrl="<%=SitePath.Path.StaticPath()%>update.gif" style="width:77px;height: 27px; border: 0px" OnClick="Update_Click" /> but at a desing time it shows something like that %3C%=SitePath.Path.StaticPath()%%3Eupdate.gif

wht i can do ,how i can achieve this ( i have try with style tag also , but its not showing proper coz it take html code as )

<input type="image" name="DL$ctl00$BtnRemove"
id="DL_ctl00_BtnRemove" src=""
style="border-width:0px;width: 80px;height: 25px; vertical-align: middle; border: 0px;background-image:url('http://localhost:2011/static1.Site/remove.gif')"

if i use this then border get come but i have also added border=0 on style plus image name is also get added on that image

View 6 Replies

MVC :: ImageURL SiteMap Node?

Aug 22, 2010

how i can add the ImageURL from a sitemap into a navigation menu, i had this working with webforms but cannot get it to work with mcv




View 2 Replies

Web Forms :: Can Change The ImageUrl At Runtime

Apr 1, 2010

In my website1, I posted some data to my website2 by doing an HttpWebRequest.The data are posted successfully but what I wanna do is change the imageUrl in website2 after website1 fired some data. When I try to debug, I can see that it passes through the code of changing the ImageUrl, but when I view the source of website2, I can't see the imageUrl being change at all... Does anyone have a clue?

View 3 Replies

Web Forms :: Can't Delete Image While Using ImageUrl?

Aug 14, 2010

My code works fine when running it on my pc, but when I uploading it to the server, I always get the same error, I can't delete file I have just assigned into imageurl. However I able to delete it before using Image1.ImageUrl = sOldFileName; Somehow the server doesn't release sOldFileName after assignment it into imageurl. Here is the code, it's a pop up that gets the a variable from another page as a QueryString. The image blocks on the page load, before clicking the btnCrop_Click button.



View 11 Replies

C# - Display Image Via Imageurl In Listview?

Apr 2, 2011

Not sure how to explain this but I have a mysql syntax odbc connection bound to a sqldatasource like so:


I save the Image*URL* to the database and im trying to change part of my listview so I can display that image, every attempt ive tryed either results in server tag not well formed if I use an asp image or only the url path being displayed if i use a html img control. How can I combat one of these so I can display images via a imageurl in my listview?


View 1 Replies

C# - How To Change Imageurl After Selection From Dropdownlist

Apr 3, 2011

I have a dropdownlist and id like upon selecting one of the four choices to set the imageurl of Image2 in code behind?

View 3 Replies

C# - How To Change Imageurl Of Imagebutton Using Javascript

Feb 25, 2011

How to change Imageurl of imagebutton using javascript?

View 4 Replies

Copyrights 2005-15 www.BigResource.com, All rights reserved