Use XML File As A Data Storage To Add - Retrieve - Update - Delete?
Dec 27, 2010I want to use XML file as a data source for my application.
View 2 RepliesI want to use XML file as a data source for my application.
View 2 RepliesHow save and display data from local storage with angular..I want save this data example
View 1 RepliesI am uploading an Excel file into DataSet/Gridview but once the file is uploaded, then i want to be able to make changes the data that is uploaded like making changes the data inside the Gridview or deleting the data etc. Here is my code:
<div>
<asp:FileUpload ID="FileUpload1" runat="server" />
<asp:Button ID="btnUpload" runat="server" Text="Upload" OnClick="btnUpload_Click" />
<br />
[Code].....
I want to know how to Update / delete the table records in ASPNETDB.MDF in single update / delete query ?
View 1 RepliesI want to delete file available on server and same time I want to update the filename column in my database.If I delete file first and then update database and an error come in updating database my file is already gone.If I update database first and then delete file from from disk and an error occur my file information in database is already gone Can any one tell me how I can do it both successfully. I means either both operations should succeed or I should not lose my physical file or its information in database.
View 3 RepliesHow to insert , update, delete , and search records from XML.
View 1 RepliesIn my Entity Framework v4 project, I have a table with two columns that are computed by the database (via triggers, etc.). In order to get EF to properly insert records into the table, I have to manually mark the columns as "Computed" in the EF Storage Model (the StoreGeneratedPattern attribute), which is not supported by the designer -- so I have to make the edits by hand to the XML in the .EDMX file. The problem is that whenever my database schema changes, and I need to update the storage model in my project, the "Update Model Wizard" overwrites the whole Storage Model section of the .EDMX, eliminating my manual changes. This means that I have to keep a special list of such changes and manually re-apply them everytime I do an update!
Is there any way to prevent the Storage Model overwrites? Is there a way to flag the columns in the database, so that EF will automatically mark them as computed? As a last resort, is the some REALLY EASY XML tool/technique that can automatically apply the changes for me after every refresh? I've been told by an insider that one solution might be to check out the "Designer Power Pack" (link below), which allows you to customize generation of the storage model. I've only skimmed the info so far, but it looks to me like there may be a day or two learning curve to figure that out. Does anyone have any experience with the Designer Power Pack, or any other ideas? [URL]
I would like to be able to give my users the ability to securely upload and store files, sometimes upwards to about a gigabyte in size. I'm not quite sure what's the best way to go about doing this. I would like to have the connection between the client and the server secured, so I'm sure I will probably have to use SSL. Now, my major crux is secure storage. Being that the data is somewhat sensitive, I'm wondering if I should encrypt the file before it is stored. I guess my question is, should I open the file and encrypt each byte or encrypt the file as a whole. I'm assuming that the latter is the better option. I know that there are a number of examples of how to encrypt a file using a number of different methods (aes, des, md5 (hashing not really encrypting), etc). Currently, to encrypt text, I am using the Rijndael algorithm, sha1, 256 bit keys, a predefined passphrase, salt value, and IV.
View 2 RepliesI'm currently developing a web application whose primary user function is uploading and downloading of files. The files will be stored on the hard disk (no cloud storage yet).
Taking into consideration the possibilities of gigabytes of data and a large number of files, do I need to organize files into sub folders to account for the fetching of a file or is the file system's indexing already very efficient and I can ignore this potential bottle neck?
Update:
On a side note, I plan to store file names and any additional information in a SQL database and only query the disk when a user actually wants to download the file. This is how I plan on retrieving files:
FileStream stream = File.Open("C:file.txt");
byte[] fileContent = new byte[stream.Length];
stream.Read(fileContent, 0, fileContent.Length;
Any file information will be retrieved from the database. The hard disk will only be used for saving and fetching files.
Update 2:
Files will be saved as GUID + EXTENSION on the hard disk while the actual file name is stored in the database.
What is the best approach to storing images in a file system. Currently I am separating the images by day, month and then year. I am also hashing file name so that no two files will be stored with the same name. Lastly, how would I go about using the image file address in a forum?
View 3 RepliesI want to import csv file(already uploaded in blob storage) in Azure. For example I have uploded test.csv on blob storage, now i just want to import that test.csv file in .net(azure) and after importing i will insert that data into azure database. I am using C# .net.
Creating a cvs file with all rows. Upload it as blob. Parse it with a Worker role and insert it in the sql azure db.
im tryign to do an upload using an aspforview, does this mean i have to do a findcontrol for all the items to get the results?
as in the uploadfile func it cant find any of the fields, how do i do this?
also id like to get the filesize, type and name back so i can put them in a database
[Code]....
how would i do my Gridview delete command like a update command?
im using a datasource... and my delete command is like my update command... so i can change the status into "INACTIVE"...
DeleteCommand="UPDATE ACCOUNT_MAINTENANCE SET am_status = 'INACTIVE' WHERE (accmain_no = @accmain_no)"
UpdateCommand="UPDATE [ACCOUNT_MAINTENANCE] SET [account_type] = UPPER(@account_type), [min_deposit] = @min_deposit, [min_capital] = @min_capital WHERE [accmain_no] = @accmain_no"
when i press my delete command at gridview... the status changed into "INACTIVE" but when i refresh or press f5... it automatically update the status into "INACTIVE" also...
I have a windows application that stores a file on the current user's isolated storage, lets call this user Adam. On the same machine I have a Web service (The Web Service's application pool is running with Adam's credentials) that uses the same dll to access the file on the isolated storage but it is trying to access a file on the Default User's profile instead of the real user's profile (in this case Adams Profile)
Why is it trying to look for the file on the Default User's profile Instead of Adam's Profile? How can i make it look for the file in the right profile?. I'm running it on Win 2003, C# and .Net framework 3.5
I created 3 category table. categry1,categry2,categry3. product table.
And then use of gried view add ,edit ,update ,delete product . in product table.
In gridview retrive data from product table . i select categry from dropdownlist in gridview categry1, categry2, categry3 and save update dropdown list category value dynamically in product table. not define value static in source code.
When select category 1 change on selected index change categary 2 or 3.
In my code I used text box to ediit update delete. but here i will use dropdownlist.
insert update delete in gridview using sqldatasource in asp.net
View 1 RepliesHow can I show data of a table into a page by using Data controls and add insert, update, and delete buttons?
View 2 RepliesI just drag a listview to my web page. When I config the data source, click the advanced button.I found that the item "Generate INSERT, UPDATE, and DELETE statements blah blah" is grayed out. Therefore I can'tmodify the records at runtime.I am using VWD 2008 Express,
View 1 Repliesi have made a connection and retrieve the data from the excel sheet. however when i run a query to update or insert some data into excel sheet it will generate an error "Cannot expand named range"
View 2 RepliesUnable to add update and delete functionality to any data control using MS Visual Web developer Express and SQL server 2008. The advanced options in the data connection wizard remain disabled. I can display data OK.
I am however able to connect to an Access 2007 DB through the same page and get this functionality to work.
By using this structure of XML :
<?xml version="1.0" encoding="utf-8" ?>
<Countries>
<Country>
<CountryName>Australia</CountryName>
<LabelABN>ABN</LabelABN>
<TextBoxLimitABN>14</TextBoxLimitABN>
[Code] .....
or this :
<?xml version="1.0" encoding="utf-8" ?>
<Countries>
<Australia>
<LabelABN>ABN</LabelABN>
<TextBoxLimitABN>14</TextBoxLimitABN>
<LabelACN>ACN</LabelACN>
[Code] ....
I want to apply INSERT < UPDATE < DELETE < SEARCH (you can apply searching outside gridview if u wish) in gridview by using XML File Provided above as a data source ...
For your ease here's a link : INSERT UPDATE DELETE IN GRIDVIEW USING XML
How to add data to grid with on click of button, without save to database, and on again click to button data will append to grid in new row.
View 1 Repliesim trying to add edit button in my gridview. when click in that row the values will automatically filled up the textbox. Im done w/ remove button. here is my code
<asp:GridView ID="gvAddedPersonnel" runat="server" AutoGenerateColumns="False" CellPadding="2"
Style="width: 100%" onSelectedIndexChanged="gvAddedPersonnel_SelectedIndexChanged"
ShowHeaderWhenEmpty="True" onrowcreated="gvAddedPersonnel_RowCreated">
<Columns>
[code]...
How can i add the update button w/out conflicting to remove.
[URL]
How can I Edit/Update, Delete and save record to database
I've got my data in the gridview via:
[Code]....
Now I need to make all the data editable (add, update, delete). Why isn't the Gridview the same as DataGridView? With the DGV, the data showed EXACTLY as it did in the database and one could add a record, edit a record, or delete a record.