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" />
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:
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
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.
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);...................................
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
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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.
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:
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.
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.
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.
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.
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 )
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?
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.
Not sure how to explain this but I have a mysql syntax odbc connection bound to a sqldatasource like so:
[Code]...
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?