Web Forms :: Read From And Write To Data Base An Image?

Sep 14, 2010

How can I show a saved picturs from data base into a Image control? And how can I save an Image from my web page into data base?

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Similar Messages:

Security :: Read And Write Image To Profile?

Feb 8, 2010

I would like to use a file upload control and write the uploaded image to the user's asp.net profile property, and then read and display that image somewhere in my application.

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Access :: Read And Write Image To Database?

Aug 2, 2010

i need vb code how to read and write an image to access data base

how to read it from dataTable object and store it in my application as image object

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Web Forms :: Base.Render Does Not Write To HtmlTextWriterObject?

Jan 18, 2011

I'm trying to setup some simple custom HTTP handlers which will render an aspx page to a string builder and then write the result to the HTTPResponse. My problem is that when I call base.Render(writer), the rendered page isn't written. Here is my code:


public void ProcessRequest(System.Web.HttpContext ctx)
Home h = new Home(); //This is an instance of the ASPX Page I'm trying to render
StringBuilder sb = new StringBuilder();
System.IO.StringWriter sw = new System.IO.StringWriter(sb);


Everything is working as it should, when I debug it executes the proper methods and does not throw errors. I can use hw.Write("STRING") in the HTTP handler to write text to the Response which displays on the screen fine. Also, the aspx page itself renders fine when I don't use a custom handler, so there is no problem there. The base.Render just doesn't seem to want to render the page's contents. I've tried RenderControl as well, and the same thing happens. From Googling around, this should work.

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Forms Data Controls :: How To Preview Images From SQL Data Base To Image Control

Dec 8, 2010

How to preview images from SQL data base to Image control ?

I store images as "Image"

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Web Forms :: Write Some Html Base On The Input Provided By The User?

Sep 15, 2010

i have to inplement a taglib(java) kind of functionality in asp.net application.I need to send parameters from the aspx file eg(<cc:displayhtmld="id1" runat="server" customparam="123"/>) and i need to write some Html base on the input provided by the user can somebody please help as to how i can do this.

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Forms Data Controls :: Read A Data Table And Write In Access DB?

Nov 8, 2010

I need to read a table from a dtgrid there is one code for example?

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Forms Data Controls :: Can Write But Not Read CssClass Of A GridView Cell

Feb 24, 2010

I have a GridView where some of the BoundFields have a CssClass applied:

<asp:BoundField ... ItemStyle-CssClass="foobar">

In the rendered HTML it looks like <td class="foobar">

But when I try to read the CssClass programatically in an event like RowCreated or CheckboxChanged or PageLoad it returns nothing:

For Each row As GridViewRow In gv.Rows()
For Each cell As TableCell In row.Cells()
ltlMsg.Text += cell.CssClass

(gv is my GridView and ltlMsg is just a Literal for displaying the results)

If I replace cell.CssClass with cell.Text it does display results, so the code is running.

If I change it to cell.CssClass="test" it does set the class of the <td> elements. It just can't seem to read them.

I must have missed something obvious - I've tried putting it in various different events but nothing seems to work. I assume the CssClass must get set at a later point in the event cycle than I have tried. Can anyone recommend a link to documentation that shows the order in which all the events fire?

Eventually I want to use this to show or hide certain columns in the GridView based on whether a CheckBox (outside the GridView) is checked or not.

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Data Controls :: How To Read Bytes From Image Column Field And Display As Image

May 7, 2015

My query is that I have an sql field for image with db type "Image" , now I have successfully inserted some images in the form of bytes, now how to read those bytes of image from database and convert, show in gridview?

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Forms Data Controls :: Read SQL Filestream Image Data Into Imagefield Within Detailsview?

Jun 16, 2010

I have a database containing a table with about 700,000 images so I recently enabled Filestream. However, I can't figure out how to render the images.

I have an Imagefield control within a Detailsview which is using an .aspx file to render the image through the DataImageUrlFormatString (which is typical). In my select statements I tried changing the binary field containing the image from objectdata to objectdata.PathName() per the Microsoft documentation but this does not work. I get the red X image box.

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Web Forms :: Attempted To Read Or Write Protected Memory?

Feb 3, 2011

I have hosted my website on the remote server. the server having Windows Server 2003 Standard Edition 64 bit OS with IIS 6.0. After hosted the website, it randomely gives me the following error message i.e.Attempted to read or write protected memory. This is often an indication that other memory is corrupt.

To resume the website, i do stop the sql server and IIS and delete the w3wp.exe from the task bar manager and then restart the sql and IIS in the same sequence and then website works fine.But this error generate randomely and couldn't resolved yet. How can i get rid of this error

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C# - Converting A Base 64 String To An Image And Saving It?

Mar 23, 2011

Here is my code:

protected void SaveMyImage_Click(object sender, EventArgs e)
string imageUrl = Hidden1.Value;
string saveLocation = Server.MapPath("~/PictureUploads/whatever2.png") ;


The top imageUrl declartion is taking in a Base64 image string, and I want to convert it into an image. I think my set of code only works for images like "www.mysite.com/test.jpg" not for a Base64 string.

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How To Read And Write Text File

Jan 8, 2010

I want to read and write a txt file but

The process cannot access the file 'D:BelgelerimVisual Studio 2005WebSitesmacrotechCounter.txt' because it is being used by another process.

what is wrong with this

StreamWriter FileWriter;
StreamReader FileReader;
string Countstr;
string str1;
int Len1,i;
FileReader = File.OpenText(Server.MapPath(Page.ResolveUrl("~/Counter.txt")));
FileReader = File.OpenText(Server.MapPath("~/Counter.txt"));
Countstr = FileReader.ReadLine();
i = Convert.ToInt32(Countstr) + 1;
Countstr = Convert.ToString(i);
FileWriter = File.CreateText(Server.MapPath("~/Counter.txt"));

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Data Controls :: C# Utility To Read Exif Image Data

May 7, 2015

How to get these all details from an image in asp.net ?

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C# - Write And Read TCP Streams Directly Without Any Modifications?

Oct 22, 2010

I'd like to write and read TCP Streams directly without any modifications by ASP or IIS. Is this possible?

Edit: Goal is to provide communication between a program and a server. Data exchange between them is less then 25 bytes per connection (in default case). So Headers will cause more traffic then the real data. I need to use ASP.Net because the owner of the server will not let me execute my programs.

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State Management :: How To Read & Write Cookies

Aug 24, 2010

code for read write cookies in asp.net?

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C# - Read Write Excel File On Server

Sep 23, 2010

I would like to know your libraries recommendations to read and write Excel applications on ASP .NET website. I have tried GemBox and NPOI, because they don't required Excel to be installed on the server, but they have some limitations on handling Excel files that are marked to read only.

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Databases :: Read / Write Excel Page Using Vb

Aug 6, 2010

i have been searching a lot but i didn't find my specefic result, my question is: how can i read excel sheet from asp.net using vb and how can i insert values into a worksheet from my web page

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Databases :: Read And Write Excel In Website

Oct 13, 2010

i want to ask whether we can read and write excel in website by using asp.net i don't want user to download the excel file and after edit upload again to website. what i want is user can read the excel file in website, after they edit, save the excel

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DataSource Controls :: Read Or Write Array In Sql

Mar 30, 2010

i have a db with two simple tables:

-Event_ID int
-Event_Name varchar
-Event_Organiser varchar tbl_events_organisers
-Organiser_ID int
-Organiser_name varchar

In event_organiser of tbl_events i want to store the organiser_ID's of the second table in an array, so a record in the first table will like something like:

-Event_Name=My event name
-Event_Organiser= 15,31,109,21

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How To Read/Write To .txt File In Global.asax

Feb 18, 2011

Usually I use this code to read a file from beginning to end into a List<> and then I write to a file with the code I have above.It seems that StreamReader/StreamWriter is not possible to use in Global.asax.I simply might wonder how I can convert this code for Global.asax?


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How To Configure IIS Or The Web Server To Allow It To Read And Write Files

Aug 18, 2010

I'm trying to add functionality to a simple web service that will allow me to log information to an XML file on the hard drive where the application is located. When I employ the functionality in a Console version of the application, the data gets logged to:binx86Debug MySolution.MyProjectMessageLogTestMessagess.xml. However, when I try to write read from or write to the XML file in the ASP.NET application, I get a System.UnauthorizedAccessException with the message: Accees to the path 'MessageLog' is denied.I would like the log file to appear in the in folder of the application directory, so what settings in IIS or on the server itself would I need to change to allow my application to read from and write to that folder?

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Read Message From Webpage To Write Into Table?

Jun 28, 2010

I am going to create a table with SQL Server, this table only has two columns: MessageName and Message.

One example is like



But I don't want to manually type in the message because of trmendous text; what I want is to read the message from an existing web page which like


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WCF / ASMX :: Read File System Image And Return Image?

Oct 5, 2010

I have a service which reads an image stored in the database. I want to be able to read an image stored on the file system and return that back to the requestor.

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How To Implement A Read And Write For An Unknown Amount Of Rows

Jan 18, 2010

I asked a question similarly, but the outcome was pretty messy and I was having difficulties populating so I'm trying to go at from a different angle: [URL]

I have a table which stores steps in a process. Some companies only have 6 steps while others have 15, so I created a table with 15 different slots for steps. What I would like to do is set up a control that displays each step in its own row with a label next to it saying "Step '#'", and not in an adjacent column. I'd also like for it to not display any blank rows. If they are entering the step instructions, I would want for them to have to press a button that would add a row so that they aren't just given 15 empty text boxes to fill in.

What would be the best control to do this in, and how would I get started in setting it up?

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