Experts have listed Top 25 dangerous errors in the programming world.

click here for Top 25 Errors

SQL Reporting on Microsoft Sharepoint.

Guys, the listed links are very helpful in reporting on sharepoint lists. Reporting on sharepoint list is not that simple as you do with any of the database. It requires specialized skills and creativity. If you can think then you may discover a new method as well.

Click here

Here

and here


You can do query the data from two different lists like you do with tables but then you need a third party tool like Enyses RS Extension.

Hope this helps!!

How to pull Active Directory Users and populate into a drop down.

Sometimes it is very hard to get it done, use this code to pull all the users from your active directory.


private void populateUsers()
{
ddlUsers.Items.Clear();

using (HostingEnvironment.Impersonate()) // To break the security for some time
{
DirectoryEntry entry = new DirectoryEntry("your AD server name");
DirectorySearcher searcher = new DirectorySearcher(entry);
try
{

searcher.Filter = " (&(objectClass=user)(objectCategory=person)(DN=*) "; //DN is the distinguished name of the AD user

foreach (SearchResult sResultSet in searcher.FindAll())
{
ListItem item = new ListItem();

item.Text = GetProperty(sResultSet, "givenName") + SPACE + GetProperty(sResultSet, "sn"); // sn - Surname
item.Value = "your domain" + GetProperty(sResultSet, "sAMAccountName"); // sAMAccountName - login name

ddlUsers.Items.Add(item);
}

ddlUsers.Items.Insert(0, "Select User");
}
catch (Exception ex)
{
throw new AppException(ex);
}
}
}
public static string GetProperty(SearchResult searchResult, string PropertyName)
{
if (searchResult.Properties.Contains(PropertyName))
{
return searchResult.Properties[PropertyName][0].ToString();
}
else
{
return string.Empty;
}
}

Hope this helps!!

Custom webpart development using ASP .NET.

There are many references found on the web for custom webpart development, some of which I am adding here, if you want any specific functinality then let me know.

http://www.codeguru.com/csharp/.net/net_asp/webforms/article.php/c12293/

http://www.datasprings.com/Resources/ArticlesInformation/Sharepoint2007CustomWebParts/tabid/775/language/en-US/Default.aspx

http://msdn.microsoft.com/en-us/library/ms452873.aspx

Hope this helps!!

Thanks.

How to sort a drop down list in C#.

There is no built in method available to sort a dropdown or any list in C#, thought to share with you guys.

#region SortDropDownList

public void SortDropDownList(DropDownList ddl)
{
//create a ListItem array the size of the items
//in your DropDownList
ListItem[] sorted = new ListItem[ddl.Items.Count];
//loop through all the items in your ListItem array
for (int i = 0; i < sorted.Length; i++)
{
//resize the array on each iteration
Array.Resize(ref sorted, i);
//add the current index to the array
sorted[i] = ddl.Items[i];
}
//call Array.Sort to sort your ListItem array
Array.Sort(sorted);
//remove all items from the DropDownList
ddl.Items.Clear();
//add the sorted items to the DropDownList
ddl.Items.AddRange(sorted);
}
#endregion

text with rotation displayed with no effect in crystal reports.

Problem

Text with rotation have no effect on DHTML viewer.

Resolution

1. locate default.css from C:\Program Files\Business Objects\common\3.5\crystalreportviewers115\css\

2.Add the vertical text entry to the CSS file and save

.verticalText
{
writing-mode: tb-rl;
}

3. Specify the vertical text tag in your report by right clicking on the field that you want vertical, selecting properties, and under the “common” tab, enter “verticalText” in the “CSS Class Name” field.

Hope this helps.
Thanks.

Images/Charts not displayed on view but fine when exported.

Symptom

Charts/Images on crystal report are not dispalyed when viewed from viewer, but when you export it to any of the format for example "pdf", there you will find your charts/images. I have found a work around for this.

Resolution

1. Right-click My Computer and click Manage.
2. Navigate to Services and Applications > Internet Information Services (IIS) Manager > Web Sites > Default Web Site.
3. Right-click crystalreportviewers115 and then click Properties.
4. On the ASP.NET tab, choose a 2.0.x version from the ASP.NET Version list.
5. Click the Apply button and then click OK.
6. Right-click businessobjects and click Properties.
7. On the Virtual Directory tab, click the Configuration button.
8. Check the path of the mappings and note the version number (in the path ...\Framework\vX.X...)
9. Repeat steps 2 to 5 for crystalreportsviewers115.If the paths for businessobjects and crystalreportviewers115 are different, change one or the other so that they point to the same version of .NET Framework.
10. Stop and restart the Default Web Site.


Hope this helps

Thanks.