Refresh parent window from child window without having to press the refresh button

Check this link:

http://dotnetjunkies.com/WebLog/dinakar/articles/12379.aspx

Regards

UseFul Methods in C# 1.0

I found this link, its really very beneficial:

http://authors.aspalliance.com/olson/methods/

Regards

Preventing Duplicate Record Insertion on Page Refresh

I would like to point to a good article written by Terri Morton @ aspalliance.com:

http://aspalliance.com/687

Regards

The Great Challenge

I would like to congratulate Layale Bassil for the great achievement she did today.

Layale presented her Final Year Project at the Lebanese American University – Byblos Campus, despite the death that her grandfather left away this morning. She was able to challenge herself and her sad situation and present a very well performed Final Year Project.

All my condolences to you Layale and your family

Congratulations for your graduation with a BE in Computer and Communication Engineering.

Regards

Loop through a DataSet

This is a very common question on the ASP.NET Forum.

I decided to provide the following solution. I will create a DataTable, create 2 DataColumns (IntergerValue and StringValue), then add 5 rows to the DataTable.

After that, I will add the DataTable dt to the collection of Tables of the DataSet ds.

Finally, I will loop though the rows of the table inside the DataSet and print out each row by row.

In real-life, the DataSet ds can be filled with the SqlDataAdapter by executing a query against the DataBase.

For simplicity, I will create a simple DataTable and add it to the DataSet. The code is as follows:

// Create new DataTable
DataTable dt = new DataTable(); 

// Create new DataSet
DataSet ds = new DataSet(); 

// Create new DataRow
DataRow dr; 

// Define the columns of the table.
dt.Columns.Add(new DataColumn("IntegerValue", typeof(Int32)));
dt.Columns.Add(new DataColumn("StringValue", typeof(string)));  

// Populate the table with sample values.
for (int i = 0; i < 5; i++)
{   
    dr = dt.NewRow();
    dr[0] = i;
    dr[1] = "Item " + i.ToString();
    dt.Rows.Add(dr);
} 

// Add the above DataTable to the collection of tables in the DataSet 
ds.Tables.Add(dt);

// Loop through the rows of the only table in the DataSet
foreach( DataRow dataRow in ds.Tables[0].Rows)
{   
  Response.Write("Integer Value : " + dataRow["IntegerValue"].ToString() + "<br>");
  Response.Write("String Value : " + dataRow["StringValue"].ToString() + "<br>");
}

Add AppSettings Keys Programatically

In ASP.NET 2.0 Beta 2, two new configuration classes have been added:

1- ConfigurationManager:
     Used to update sections inside the App.Config file.

2- WebConfigurationManager:
    Used to update setions inside Web.Config file.

To see how to add some keys to the AppSettings section in the web.config file, check the code below:

Configuration configFile = 
                  WebConfigurationManager.OpenWebConfiguration("~");
AppSettingsSection AppSection = 
                  configFile.GetSection("appSettings") as AppSettingsSection;
AppSection.Settings.Add(
                 new KeyValueConfigurationElement("SMTP", "mail.bhaidar.net")
                       );    
configFile.Save();

The above code would add the following line to the appSettings section.

<appSettings>
    <add key="SMTP" value="mail.bhaidar.net" />
</appSettings>

Make sure to include:

using System.Web.Configuration;

Hope that helps you.

Regards

Profile VS. Session

I would like to point out some of the similarities/differences bewteen both Session and Profile objects:

Profile:

1- Profile object is scoped to a particular user: 
    Each user of a web application automatically has his own profile.

2- Profile object is persistant:
    When you modify the stat os the profile object, the modifications are saved between visits to the website

3- Profile object uses the provider model to store information:
    By default, the contents of a user profile are automatically saved to a Microsoft SQL Server Express database
    located in App_Data of your web application.

4- Profile object is strongly typed:
    Using strongly typed properties has several advantages. For example, you  get full Microsoft IntelliSense when 
    using the Profile object in VS.NET 2005 or Visual Web Developer

Session:

1- Session object is scoped to a particular user: 
    Each user of a web application automatically has his own Session state.

2- Session object is non-persistant:
    When you add an item to the Session object, the items disappear after you leave the Web site.

3- Session object uses three different ways to be stored:
    3.1: In Process  - default
    3.2: State Server (Out of Process)
    3.3: SQL Server

4- Session object is not strongly typed:
    Sessopn object is simply a collection of items.

Hope you enjoyed the post.

Regards

Profile & Anonymous State

I was exploring today Profile and how to work with them.

I notice something which I would like to share it with you.

Suppose we have the following configuration section:

<authentication mode="Forms"/>
        <anonymousIdentification enabled="true"/>

        <profile enabled="true">
            <properties>
                <add name="ZipCode" type="int" />
                <add name="EmailAddresses" type="System.Collections.Specialized.StringCollection" serializeAs="Xml" />
                <group name="Address">
                    <add name="Street" type="System.String" />
                    <add name="City" type="System.String" />
                    <add name="State" type="System.String" />
                    <add name="CountryOrRegion" type="System.String" />
                group>
            properties>
        profile>

Configuration Section handler and the validator classes to validate the section

A great post about reading a ConfigurationSection in asp.net 2.0 by Fredrik Normen.

Check the post @ : http://fredrik.nsquared2.com/viewpost.aspx?PostID=253&showfeedback=true

Regards

ConfigurationManager Class in ASP.NET 2.0

Fredrik Normen explains the ConfigurationManager in details.

Check his post @ : http://fredrik.nsquared2.com/viewpost.aspx?PostID=252&showfeedback=true

Regards

A Customizable Login Server Control

A common requirement of web applications is the need to obtain the user's username and password.

In this article, I  build a customizable Login server control that can be added easily to any ASP.NET Web Form.

To check this article, please follow this [link].

Regards

PopUpWindow Control in ASP.NET V1.1

There is a common question that is always being asked on the asp.net forums:

“How to popup a window inside an asp.net page”,

I felt it would be easier for all developers to provide them with such a control.

Please check the  [PopUpWindow 1.1] on my website, localed in the asp.net free controls page.

Regards

The ASP.NET V2.0 Page lifecycle

Hi:

This is my first post on my Blog.

I have been working for some time with asp.net 2.0. The first thing I did was to know what is the page-life cycle in asp.net 2.0. But I was not successful enough to find what I need until recently I found a diagram that explains in details all the methods involved in the asp.net 2.0 Beta1 page-life cycle.

Have a  look at : http://hydrate.typepad.com/leo/2004/08/the_aspnet_v20_.html

Regards