Web Forms :: Reading Information Content From A Saved Image?
Mar 15, 2011
how to read content information from a saved image in SQL image column. I do not want to read the image and display it I know how to do that, what I am trying to accomplish is read the content of that images already saved in the SQL image field, for instance I have a saved image (.JPG, .GIF, PNG, BMP etc) that contains customer demographic information such as (name,address,phone etc) and also contains sensitive data such as (SSN, DOB etc) I just want to retrieve the demographic information and display it on the screen leaving out the sensitive data.
I am able retrieve the image for imagebutton from db on to gridview and perform some events but I am unable to view the complete image i.e, i am able to see only part of the image
I have a C#/Asp.net web application which caches SQL DB schema information. Is there a way that I can determine what child relationships a given table has? I have looked into using the DataTable.ChildRelations property, but it is never populated with items unless i manually create a relationship using the .add property. I also have access to DataColumn information for each column in the database.
I am reading an excel file in C#.NET. The data is being read successfully but there is problem with some hyperlinks stored in the excel file. I can read their text but i dont know how to get the underlying link/url of the column. I couldnt find much help on google as well. if someone has worked in a similar situation please let me know what can be done.edit::: i am using OleDb namespace for establishing a connection with the Excel file so if someone can post a solution which applies to this situation
I have a coloumn in a database table in which i am storing the candidates photo in a binary format.
now i have to show these photo in a gridview according to the candidates rollno. i am trying to use the imagefield of a gridview control to display the photo but it is not displaying the photo in a grid view
I have an aspx page that loads a static graphic and put session strings in it. I used Image1.Save(Server.MapPath("gen_img2.jpg"), ImageFormat.Jpeg), but it's not saved on the server. I thought this was a user permission problem, so I assigned the ASPNET account write permission to the folder, and it still doesn't work. Did I use the wrong account? I use winserver 2003 and IIS 6.
I write the following code but there is an error. I just want to retrive the image which I have save into tha database from the sql server and to display in the picture Box(image)
we save the images in database and read the file to show on web front. The problem is some of the images fails to be shown on the page. but if we right click and choose show image, it is shown again. is it because of database timeout ?
i am developing a small website where on one page user selects an image [selected image id is passed to another page] and on the next page logo is selected which is passed onto next page [selected logoid is passed]..now in third web-page actual watermark happens where user can select the postion where watermarking is needed to do ...
the problem is the third webpage...here i know the imageid and logoid..but dont know how to select imagecontent and logocontent using both the ids....because as per my knowledge i think using sql-query i can select columns of only one table...
I fetched Blog Description and displayed on the ListView control when user search for the blog titlewise. But it is everything displaying on blog description. I want to display first 4/5 lines only and then it should display ..... [ continue ]
I would like to be able to read an image based on a url hosted elsewhere. To be clear, this is a legitimate service that is provided and they do allow caching of data, so I'm not trying to steal someone elses data.
The area that I'm looking to improve on is the emboldened line. I think it would be better to read in say 1024k chunks until the file end. Can anyone help me out with the syntax for this?
I am storing an image file into Access database using access form. I am trying to read it out and render it on a webpage using ASP.Net 3.5 and C# but it has read error message.
But if I store the same image to Access using ASP.NET and C# and then retrieve it using ASP.NET and C# and has no problem at all.
Is Access store varbinary difference that ASP.NET store varbinary?
Regex r = new Regex(this.textbox1.Text); Match m = r.Match(this.SearchStringTextBox.Text); while (m.Success) { Response.Write(m.Value); Response.Write("<br>"); m = m.NextMatch(); } this.textbox1.Text="<img[^>]* src="([^"]*)"[^>]*>" this.SearchStringTextBox.Text = " I get html content ..........."
I would like to find a way to read a txt file (in my case delimited by €). I need to change the order of the columns and also add and remove some columns. My output file should be a txt file delmited by ;.
I tried Jet.OLEDB to read the file and put it into a datatable and then used a stringBuilder and streamwriter to get an output file in .txt format. However. This does not me since IŽ, reading the txt file from start to end and my output will be the same. It does not seem like I can have a custom sql statement when reading the file. The only query that works is
Dim da As New System.Data.OleDb.OleDbDataAdapter("Select * from 1.txt", TextConn)
a page with a lot of controls (images, labels, etc), and i have a panel (the canvas), that the user will arrange the itens, and after he finishes i want to save the panel as a image.
