How To Get Data To Serialize As Binary, Rather Than Xml
Jun 21, 2010
I have no problem getting a custom profile class to work as it should in Asp.Net MVC 2, C# -- as long as I am content that the profile info is serialized as xml.The question is how to get it to serialize as Binary, rather than xml -- Is that possible?in the web.config...
I have a simple ASP.NET MVC web application that uses NHibernate with FluentNHibernate's auto mapping feature for its data access. I have encountered a scenario in which I would like NHibernate to persist some classes as binary data.
public class User { // This field will be persisted public virtual byte[] PortraitData { get; set; } // This method will get me what I'm actually interested in public virtual Image GetPortrait() { return SerializationHelper.Deserialize<Image>(PortraitData); } }
(I leave the implementation of the SerializationHelper class to the reader's imagination. It doesn't do anything complicated, just serializes and deserializes data into byte arrays and back.)
I have been googling this and have not come along a working solution for an entire day. I don't know anything about binary data types (as I've never knowingly used them) and I'm trying to write a binary value that I see in the registry, to the registry. Now, all I see is the following [shown below]... and if I try to pass that as a string to the RegSetValueEx in the WinAPI and of course it errors out... I do not know what 'numbers' I need to pass into the lpData As Any, argument of RegSetValueEx (i tried a bit array) in order for it to come out as the following [shown below] in the regedit. I really have no idea, and my tests to place random numbers in the bit array just produce corresponding random "figures" as visible in regedit that I do not understand how to 'tie' them together logically.
here is the culprit!
[Code]...
If I had the following in a string or a bit array, what must I populate the bitarray with so that the registry outputs this [above] when written? or, how can I figure out how to do it? I was hoping there'd be a function that reads my string of binary data and transforms it into the real binary format to submit to the RegSetValueEx function in VB6 or other function in VB.Net or C# (this really is a language agnostic question, and the problem exists in all languages; ie: same process).
I am facing the problem while using For Xml'AddressLine' because it contains a character (0x000F) which is not allowed in XML I found some other similar charectors which is raising the exception.Using replace of such charectors results in loss of data Please give me a solution or any work around.
I have an ASP.NET 1.1 form gathering data on a public-facing site, within a DMZ. The data is represented by a serializable class. My problem is that I need to serialize, encrypt and transmit the data to a Web Service running on an internal server - the service logic should then decrypt and deserialize the data before writing the XML to a shared folder.
Can someone point me in the right direction? What's the most straightforward way of doing this?
For all of my cases, I have binary data for pdf stored in my database. I have a stored proc that brings the binary for each case.How do I read this binary to store as pdf on a file server?How do merge these pdf files fo a set of cases and stored a merged file on the file server?
I'm using the following code to upload images, pdf files, word files and excel to a sql table as binary data. However, I can only figure out how to display the images but am clueless about the other type of files. What adjustments do I need to make so that with a button click I can access the other files? 't By the way, I'm using an image control to display the binary data and I'm aware that that will only work to display images, I just don't how to access all the other types of files once uploaded.
I have one table "EmpDetails". Fields of the table are empid, empname and empimg. I have stored employee details in these three fields. Now i want to retrive empname and empimg field in my web form. To do this i have taken one data list control. I have wriiten all code to get desired data but i am only getting empname from data base, not getting his/her image from databse. let me tell you i have stored images in database as a binary data. so how to retrive this binary data in datalist as an image.Below is my datalist control.
My Image is showing in Image Control from somewhere, now my question is that How to save that shown image from Image Control without Using FileUpload Control to Database in ASP.Net?
Actually i have got a task to implement web cam to grid from there user will click button, another window will pop up then he will capture that image, then that image will be shown in GridView, then when a user click Submit button all the images captured by the user got saved to database in the form of Image
I have referred the following article : [URL] .....
I want to display image in detailview.. I used image datatype in the database instead of using varbinary. but the problem is.. detail view is not fetching the picture..
i have a table with a bindary data field in it (excel, pdf, word files etc).
In gridview i want to have a colum that the user can click on to open or download that file. The file is stored in the database and not on the directory.
I have searched some things but only came up with complex stuff.. I am trying to stay away from complex because i am a total noob.
i am working on Multi Level Products.i need to display data in the form of binary tree how to go for it. is there any control to display it or is there any other way
I have 2 DropDownList and 1 button in admin.aspx page
1=DDLtradeO and 2=DDLclassO
users should select Item from both of them I use RequiredFieldValidator for both of them and when they click on button in HOuse_info Table it insert their data here when users select first item from DDLtradeO (that text is="State" )
here RFV11 is RequiredFieldValidator for DDlclasso..problem is here when users select other item from DDltradeO and they select Item form DDLcalssO when they click on button it insert data into House_info table correctly but when they select "STATE" Item from DDLtradO (they can't select Item from DDlcalssO) when they click button this error occurrence Server Error in '/behtop website' Application.
String or binary data would be truncated. The statement has been terminated.An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System. Data. SqlClient.SqlException: String or binary data would be truncated. The statement has been terminated. Source Error:
Line 312: Line 313: Line 314: int result = Convert.ToInt32(_cmd.ExecuteScalar()); Line 315: _cn.Close(); Line 316: //LBLERROR.Text = _cmd.Parameters["@Success"].Value.ToString();
I think its depend to RequiredFieldValidator but I want if users select other Item from DDltrade they select Item from DDLcalssO. Server Error in '/behtop website' Application.
String or binary data would be truncated.The statement has been terminated. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: String or binary data would be truncated. The statement has been terminated. Source Error:
Line 312: Line 313: Line 314: int result = Convert.ToInt32(_cmd.ExecuteScalar()); Line 315: _cn.Close(); Line 316: //LBLERROR.Text = _cmd.Parameters["@Success"].Value.ToString();
I need to display binary data (that is stored in the database) in the aspx page. The file types are word and pdf. Since there might be multiple files, what I did was created IFrames dynamically and tried to embed the binary data. The problem is rather than embeding the word doc or pdf doc in the page, it displays the open/save dialog box.
is there any way to solve this (embed the word/pdf doc in the page itself)?
I am trying to get a control (not a controller -- a subclass of System.Web.UI.WebControls.WebControl), that can be used that I wrote for ASP.NET to work in an ASP.NET MVC environment. Normally, the control does the normal thing, and that works fine
Sometimes it needs to respond by clearing the response, writing an image to the response stream and changing the content type. When you do this, you get an exception "OutputStream is not available when a custom TextWriter is used".
If I were a page or controller, I see how I can create custom responses with binary data, but I can't see how to do this from inside a control's render functions. To simplify it -- imagine I want to make a web control that renders to:
<img src="pageThatControlIsOn?controlImage">
And I know how to look at incoming requests and recognize query strings that should be routed to the control. Now the control is supposed to respond with a generated image (content-type: image/png -- and the encoded image). In ASP.NET, we:
Response.Clear(); Response.OutputStream.Write(thePngData); // this throws in MVC // set the content type, etc Response.End();
How am I supposed to do that in an ASP.NET MVC control?
I have an ASP.NET app that writes binary data to a SQL database. It worked fine using SQL Express, but does not ever write the data using SQL Server 2008 R2. SQL Profiler shows the binary data in the UPDATE query, but nothing happens... no errors, no data saved. Does anyone know what I'm missing? Other data types work fine.
