Display notifications in SharePoint from code behind

Introduction

Sometimes we may need to display notifications in SharePoint; which appears on the right side of the page below the ribbon.

Problem Background

We may need to call the notification from the code behind which I will show how to achieve it.

Solution Background

We have to call SP.UI.Notify class to add and remove notification. This class contain two methods

• addNotification – Add a notification to the page and returns the id of that notification.
• removeNotification – Removes the notification from the page. 

Solution
 

   
private void ShowNotification()
        {
            var scriptTemplate = @"
ExecuteOrDelayUntilScriptLoaded(function(){{
    ExecuteOrDelayUntilScriptLoaded(function(){{
            var notificationId = SP.UI.Notify.addNotification(""{0}"", false);
//false here will remove the notification in 5 secs
//true will not remove until we remove it by calling removeNotification   
        }},
    'core.js'
    )}},
'sp.js'
);";
            //You can give the string in Hello World!!
            var script = string.Format(scriptTemplate, "Hello World!!");
            //Here Any String as the key of the client script to register
            Page.ClientScript.RegisterClientScriptBlock(GetType(), "Any String", script, true);
        }

Use removeNotification to remove the notification explicitly.

   
private void ShowNotification()
        {
            var scriptTemplate = @"
    ExecuteOrDelayUntilScriptLoaded(function(){{
        ExecuteOrDelayUntilScriptLoaded(function(){{
            var notificationId = SP.UI.Notify.addNotification(""{0}"", true);
            removeNotification(notificationId);//remove the notification. 
        }},
    'core.js'
    )}},
'sp.js'
);";
      
            var script = string.Format(scriptTemplate, "Hello World!!");
            Page.ClientScript.RegisterClientScriptBlock(GetType(), "Any String", script, true);
        }

Conclusion

Please go through below urls for more information on this. 

• http://msdn.microsoft.com/en-us/library/system.web.ui.clientscriptmanager.registerclientscriptblock(v=vs.110).aspx
• http://melick-rajee.blogspot.com/2013/07/sharepoint-status-notifications-and-pop.html 

 

Retrieve Author of SPListItem as SPUser in SharePoint; programmatically (C#)

Introduction
Updated on 15th July 2014

I was assigned in a project where I had to retrieve the author of the SPListItem as SPUser programmatically.

Solutions

In these solutions I’m returning the login name. But you can get the SPUser.

Solution 01

1. public string GetListItemAuthorNameSPBuiltInFieldId(SPListItem spListItem)
2.       {
3.           string loginName = string.Empty;
4.           SPWeb spWeb = SPContext.Current.Web;
5.  
6.           var fullUserName = spListItem[SPBuiltInFieldId.Author] as string;
7.           var userName = fullUserName.Split('#')[1];//This is only to get the user name. My fullUserName was 1;#Setup Admin.
8.           SPUser spUser = spWeb.EnsureUser(userName);//You can get SPUser from here
9.           loginName = spUser.LoginName;
10.           return loginName;
11.  
12.       }

It is recommended to SPBuiltInFieldId in order to retrieve build in fields.

Solution 02

1. public string GetListItemAuthorName(SPListItem spListItem)
2.   {
3.       string loginName = string.Empty;
4.       var spFieldUser = spListItem.Fields.GetFieldByInternalName("Author") as SPFieldUser;
5.  
6.       if (spFieldUser != null && spListItem["Author"] != null)
7.       {
8.           var fieldValue = spFieldUser.GetFieldValue(spListItem["Author"].ToString()) as SPFieldUserValue;
9.           if (fieldValue != null)
10.           {
11.               var spUser = fieldValue.User;//Get the SPUser
12.               loginName = spUser.LoginName;//Get the login name from SPUser
13.           }
14.       }
15.       return loginName;
16.   }

Conclusion

I will update how to retrieve values from SPField in future days.

Query all the documents by its file type from a Site and its all sub sites using SPSiteDataQuery

Introduction

I had to develop a web part where I had to query and display all the document items which the file extensions are “docx” under a particular site collection including its sub sites. I used SPSiteDataQuery class in order to achieve.

Solution

 
using (SPSite spSite = new SPSite(SPContext.Current.Web.Url))
            {
                using (SPWeb spWeb = spSite.OpenWeb())
                {
                    SPSiteDataQuery spSiteDataQuery = new SPSiteDataQuery();

                    spSiteDataQuery.Query =
                    @"<Where>
      <Eq>
         <FieldRef Name='DocIcon' />
         <Value Type='Computed'>docx</Value>
      </Eq>
   </Where>";
                    spSiteDataQuery.ViewFields = "<FieldRef Name='FileLeafRef' /><FieldRef Name='Editor' /><FieldRef Name='ContentType' />";
                    spSiteDataQuery.Lists = "<Lists ServerTemplate='101'/>"; //Set the list template by providing its template type id

                    spSiteDataQuery.Webs = "<Webs Scope='Recursive'/>";//Recursive: Current site and any subsite
                    //Scope='SiteCollection': all webs in the current site collection

                    //Get the results into a datatable
                    DataTable resultsTable = spWeb.GetSiteData(spSiteDataQuery);

                    
                    //Bind the results in to a asp grid view
                    GridView spGridView = new GridView();
                    spGridView.AutoGenerateColumns = true;
                    spGridView.DataSource = resultsTable;
                    spGridView.DataBind();

                    Controls.Add(spGridView);
                }
            }

 

Conclusion 
The results will look something as below. 

I have posted the my sln file here. Please download in case if you need
https://drive.google.com/file/d/0ByEnOE8DAdvhSTlnMDBuWDRuWTA/edit?usp=sharing

Reference: http://msdn.microsoft.com/en-us/library/ms409088.aspx