Introduction
Today, in this article let's play around with one of the interesting and most useful concepts in SharePoint 2010.
Question: What is calendar item?
In simple terms "It enables addition of a list of events or items to the calendar where the user can keep track of activities going on".
Step 1: Open SharePoint 2010 Central Administration and navigate to a specific site.
Step 2: Open up Visual Studio 2012 and try to create a "SharePoint Visual Web Part" project, as in:
![open-sharepoint2010-visual-webpart.jpg]()
Step 3: Select "Deploy as a farm solution" as in the following and click the "Finish" button.
![sharepoint-customization-wizard.jpg]()
Step 4: The complete code of visualwebpart1usercontrol.ascx looks like this:
<%@ Assembly Name="$SharePoint.Project.AssemblyFullName$" %>
<%@ Assembly Name="Microsoft.Web.CommandUI, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register TagPrefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls"
Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register TagPrefix="Utilities" Namespace="Microsoft.SharePoint.Utilities" Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register TagPrefix="asp" Namespace="System.Web.UI" Assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" %>
<%@ Import Namespace="Microsoft.SharePoint" %>
<%@ Register TagPrefix="WebPartPages" Namespace="Microsoft.SharePoint.WebPartPages"
Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="VisualWebPart1.ascx.cs"
Inherits="CalendarItemApp.VisualWebPart1.VisualWebPart1" %>
<center>
<div>
<table style="font-family: Verdana; text-align: center;">
<tr>
<td colspan="2">
<asp:label id="Label1" runat="server" text="Add New Item to Calendar - SharePoint 2010 via Visual Studio 2012"
font-bold="true" forecolor="Maroon" font-size="Large"></asp:label>
</td>
</tr>
<tr>
<td>
<asp:label id="Label2" runat="server" text="Please Enter List Name:"></asp:label>
</td>
<td>
<asp:textbox id="TextBox1" runat="server" width="117px"></asp:textbox>
</td>
</tr>
<tr>
<td>
<asp:label id="Label3" runat="server" text="Please Enter Title Name:"></asp:label>
</td>
<td>
<asp:textbox id="TextBox2" runat="server" width="117px"></asp:textbox>
</td>
</tr>
<tr>
<td>
<asp:label id="Label5" runat="server" text="Please Enter Location Name"></asp:label>
</td>
<td>
<asp:textbox id="TextBox3" runat="server" textmode="SingleLine" width="117px"></asp:textbox>
</td>
</tr>
<tr>
<td>
<asp:label id="Label6" runat="server" text="Please Enter Description"></asp:label>
</td>
<td>
<asp:textbox id="TextBox4" runat="server" textmode="MultiLine" width="117px"></asp:textbox>
</td>
</tr>
<tr>
<td>
<asp:label id="Label7" runat="server" text="Please Select Category"></asp:label>
</td>
<td>
<asp:dropdownlist id="DropDownList1" runat="server" width="117px"><asp:ListItem>Meeting</asp:ListItem><asp:ListItem>Work Hours</asp:ListItem><asp:ListItem>Business</asp:ListItem><asp:ListItem>Holiday</asp:ListItem><asp:ListItem>Get-Together</asp:ListItem><asp:ListItem>Gifts</asp:ListItem><asp:ListItem>BirthDay</asp:ListItem><asp:ListItem>Anniversary</asp:ListItem></asp:dropdownlist>
</td>
</tr>
<tr>
<td colspan="2">
<asp:button id="Button1" runat="server" text="Add New Item" forecolor="Orange" font-bold="true"
backcolor="Black" width="154px" onclick="Button1_Click" />
</td>
</tr>
<tr>
<td colspan="2">
<asp:label id="Label4" runat="server" font-bold="true"></asp:label>
</td>
</tr>
</table>
</div>
</center>
Step 5: The complete code of visualwebpart1usercontrol.ascx.cs looks like this:
using Microsoft.SharePoint;
using System;
using System.ComponentModel;
using System.Web.UI.WebControls.WebParts;namespace CalendarItemApp.VisualWebPart1
{
[ToolboxItemAttribute(false)]
public partial class VisualWebPart1 : WebPart
{
// Uncomment the following SecurityPermission attribute only when doing Performance Profiling using
// the Instrumentation method, and then remove the SecurityPermission attribute when the code is ready
// for production. Because the SecurityPermission attribute bypasses the security check for callers of
// your constructor, it's not recommended for production purposes.
// [System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Assert, UnmanagedCode = true)]
public VisualWebPart1()
{
}
protected override void OnInit(EventArgs e)
{
base.OnInit(e);
InitializeControl();
}
protected void Page_Load(object sender, EventArgs e)
{
TextBox1.Focus();
}
protected void Button1_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(TextBox1.Text) || string.IsNullOrEmpty(TextBox2.Text)|| string.IsNullOrEmpty(TextBox3.Text))
{
Label4.Text = "Please Enter Some Values";
Label4.ForeColor = System.Drawing.Color.Red;
}
else
{
SPWeb web = SPContext.Current.Web;
SPList list = web.Lists[TextBox1.Text];
SPListItem item = list.Items.Add();
item["Title"] = TextBox2.Text;
item["Location"] = TextBox3.Text;
item["Description"] = TextBox4.Text;
item["Category"] = DropDownList1.SelectedValue;
item["Start Time"] = DateTime.Today;
item["End Time"] = DateTime.Today.AddDays(1);
item.Update();
Label4.Text = TextBox2.Text + " - Created Successfully";
Label4.ForeColor = System.Drawing.Color.Green;
TextBox1.Text = string.Empty;
TextBox2.Text = string.Empty;
TextBox3.Text = string.Empty;
TextBox4.Text = string.Empty;
}
}
}
}
Step 6: Deploy the solution file and add the new webpart to a SharePoint site.
Step 7: The output of the application looks like this:
![add-new-item-to-calendar-sharepoint2010.jpg]()
Step 8: Data entering output of the application looks like this:
![app-add-new-item-to-calendar-sharepoint2010.jpg]()
Step 9: Calendar item created output of the application looks like this:
![Calender-item-created-output-sharepoint2010.jpg]()
I hope this article is useful for you.