.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Register
 
Win Surprise Gifts!!!
Congratulations!!!


Top 5 Contributors of the Month
MarieAdela
Imran Ghani
Post New Web Links

Is it safe to store db keys in javascript?

Posted By:      Posted Date: September 26, 2010    Points: 0   Category :ASP.Net
 

Hi,

I'm working on a mapping application and will be allowing a user to make a query and have the resulting locations display on a map.
I want the users to be able to interact with the map, but I need to know exactly which item they're interacting with, so it would be easiest if when the original query is made, the id's are put in a hidden field somewhere so I can just perform an insert statement based just on the key, rather than having to to another query to find out the key by saying "where location name is x and the coordinates are y, and the description is z" etc.

Is this a bad idea, i.e. could anyone do any harm if they discovered that I was storing the primary key in a hidden field?




View Complete Post


More Related Resource Links

SSRS2005: Is it safe to manually remove instances from the Keys table in the report server database?

  
I have a problem with redundant reporting services instances still hanging around in the initialization pane of the RS configuration wizard and I can't get rid of them. The problem arose when we had new webfarms and before I had removed all references to the old ones from the initialization screen, the old webfarms had been switched off, removed from the network and dismantled. Therefore when I try to 'de-initialize' them, I get an error stating that reporting services cannot connect to them and when I run reports, a fair few are trying to run on the old webfarms which no longer exist and are disappearing into the void. There's a table in the report server database called Keys whch contains details of these intances and i'm wondering if its safe to remove these via SQL commands without breaking reporting services on other machines.   As a side note: All this stems from the fact that when you uninstall Reporting Services, not all of the files / references are removed. So as a general word of warning, if you do an uninstall of RS2005, you'll need to make sure everything's gone before re-installing, throwing away old machines etc. These include folders in IIS and these old instances as mentioned above.  

How can i safe value of variables in javascript code in PostBack event?

  

Hi Experts.

I need to define some Boolean variables in my javascript code and use them  when  the any onfocusout methods of controls  is fired. Like this:

<script>

            Var is_ValidateTextBox1 = false;

            Var is_ValidateTextBox2 = false;

            Var is_ValidateTextBox3 = false;

Function focusout_TextBox1()

{ValidateTextBox1 = true; }

</script>

When onfocusout of TextBox1 is fire, I want to set  " is_ValidationTextBox1=true;".  But when the post back is fired from the form, the variable reset to false because the line of defining the "Var is_ValidateTextBox1 = false;" is run again in post back!

Now how can I to solve this problem? How can i safe value of variables in javascript code in PostBack event?

With Regards. Mojtaba


ASP.NET, HTML, JavaScript Snippet Support (VS 2010 and .NET 4.0 Series)

  
This post covers another useful improvement in VS 2010 - HTML/ASP.NET/JavaScript snippet support. Snippets allow you to be more productive within source view by allowing you to create chunks of code and markup that you can quickly apply and use in your application with a minimum of character typing.

Visual Studio has supported the concept of "snippets" for VB and C# in previous releases - but not for HTML, ASP.NET markup and JavaScript. With VS 2010 we now support snippets for these content types as well.

Surrogate vs Natural Primary Keys - Data Modeling Mistake 2 of 10

  
In case you're new to the series I've compiled a list of ten data modeling mistakes that I see over and over that I'm tackling one by one. I'll be speaking about these topics at the upcoming IASA conference in October, so I'm hoping to generate some discussion to at least confirm I have well founded arguments.

The last post in this series Referential Integrity was probably less controversial than this one. After all, who can argue against enforcing referential integrity? But as obvious as surrogate keys may be to some, there is a good deal of diversity of opinion as evidenced by the fact that people continue to not use them.

call JavaScript - jQuery code from ASP.NET Server-Side

  
jQuery got so close to me lately that I can see myself adding the scripts to my project almost unconsciously. The thing is, jQuery is very useful for me, in almost all situations and it has been a do or die enhancement for all my project since I first put my hands on it.

Of course while using it, you encounter few situations which need a bit of research to solve, mostly when you are trying to combine it with some other technologies like: UpdatePanels and ASP.NET Ajax. For instance there are many situations when I would like to run some jQuery magic based on some decision that I make on the server side.

call JavaScript - jQuery code from ASP.NET Server-Side

  
jQuery got so close to me lately that I can see myself adding the scripts to my project almost unconsciously. The thing is, jQuery is very useful for me, in almost all situations and it has been a do or die enhancement for all my project since I first put my hands on it.

Of course while using it, you encounter few situations which need a bit of research to solve, mostly when you are trying to combine it with some other technologies like: UpdatePanels and ASP.NET Ajax. For instance there are many situations when I would like to run some jQuery magic based on some decision that I make on the server side

Ajax Enabled Gridview using JavaScript in ASP.NET

  
Before explaining the article, I would like to thank all readers who read my article and voted for it. Your appreciation for my article gives me strength to write more good articles. Hope in future I will get your valuable comments and suggestions. Now I won't waste your time and come back to the topic. I have written this article on 'Ajax Enabled Gridview Using JavaScript in ASP.NET'. In this article, I will show you how to make a Gridview using a simple HTML table, JavaScript and XML HTTP for Ajax call without using any ASP.NET control.

Using Code

GridView Javascript Click Row and Ajax

  
This article shows 2 common tasks with the ASP.NET GridView: Binding a List (generic) of objects as DataSource and on clicking a row, getting the values of the selected row by a javascript function. In the example a List with User-objects is displayed. On clicking a row containing the data of a User-object, the Id of the object is used to get the address of the user by an Ajax-call and display it in a details-field.

Combine, minify and compress JavaScript files to load ASP.NET pages faster

  
Websites are getting more interactive these days and most of this interactivity comes from JavaScript. People are using different JavaScript libraries and frameworks to make their websites more interactive and user friendly.

Visual Studio Shortcut Keys

  
The following tables describe the shortcut keys in the Microsoft Dynamics AX Debugger.

Store and Display Images from MS Access Database Using C#

  
There is only the difference of coding syntax to stream the binary data of image content type to upload it into MS Access Database using C#/VB in ASP.Net 2.0

Namespaces required:-
using System.Data.OleDb;

OleDb is used to connect the web site forms with MS Access Database using Microsoft.Jet.OLEDB.4.0

how to impose javascript event processing?

  

If I have some form control like textbox and I want the event handler to be located in the html instead of at the server side, how to do that? Of course I can copy paste javascript code in the aspx file. But is it possible to do that using some object oriented approach (ie programmatically in the code behind)?

Thanks


.net 4 framework getelementbyid for javascript without clientid

  

I thought I heard we would be able to get the value of an asp:textbox by id with javascript in the .net 4 framework? was I mistaken? if not does anyone know the syntax?


split with javascript

  

hi

i have this garbache value %B463822546831472^MILIN JONE/OBAMA         ^1308226223780000731000000?;E?

now i wana slit with javascript and show on my aspx page like this(bold words)

1st.Text=463822546831472

2nd.Text=MILIN JONE

3rd.Text=OBAMA

How can i split with java script.plz help in this issue


Re-positioning an HTML container with javascript onresize with a Master page.

  

I have an HTML <div> container that I float to the right of a gridview.  When the browser window is maximized, it looks fine.  When minimized, the gridview positions below the floating container and most of the data is pushed off the bottom of the browser - you have to scroll down to see it.

If I position the floating container above the gridview it looks fine in a minimized window, but looks real bad when maximized.

What I want to do is use a javascript: onresize event to re-position the floating container up or down depending on the window.inner.width AND do it with a Master/Content page structure AND do it for only the one page where needed.

I can capture the onresize event and display the window dimensions but haven't figured-out how to do it with a Content page that still uses the Master page.  I think I'm having a very "thick" week...

- Tinker

 


Content page control passes as argument to javascript function

  

Here is the content page:

********************************************************************

<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="JavaDynamicCopyValue.aspx.cs" Inherits="JavaDynamicCopyValue" Title="Untitled Page" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
 <script type="text/javascript" >
 function copyValue(input, output )
{
   ouput.value = input.value;
   return true;
}
 </script>
 <asp:TextBox ID="txt1" runat="server" onchange="copyValue(this,document.getElementById('<%=txt2.ClientID%>'))"></asp:TextBox>
    <br />
    <br />
    <asp:TextBox ID="txt2" runat="server"></asp:TextBox>
</asp:Content>

********************************************************************

I got a javascript run time error says output is undefined. if I view source of the page, the txt1 markup became:

<input name="ctl00$ContentPlaceHol

How to store more than 4k bytes of data in SQL CE 4?

  

I need to store more than 4k of bytes in my SQLCE 4 database. How can I do that with the ASP.NET Web Pages 1.0?

1: The Microsoft.Data provider fails when I try to populate a parameter with more than 4k bytes.
2: Referencing SqlServerCe assembly and using SqlCeConnection/SqlCeCommand/SqlCeParameter throws exception:  SQL Server Compact is not intended for ASP.NET development.

How can I somehow map the generic DbType, which does not have NText as an option, to the ntext column in my database? (SqlCeParameter supports DbSqlType, which has ntext, but see problem #2)


Categories: 
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend