| SharePoint
2010 provides a new client object model that enables you to create
SharePoint solutions that run remotely from the SharePoint server farm.
For example, the client object model enables you to consume and
manipulate SharePoint data in Windows Forms applications, Windows
Presentation Framework application, console applications, Silverlight
applications, and ASP.NET Web applications. |
| |
| For working with client object model you need to get two master dlls: |
| |
| · Microsoft.SharePoint.Client.dll |
| · Microsoft.SharePoint.Client.Runtime.dll |
| |
| These dlls you can find under following path from machine on which you have installed SharePoint 2010. |
| |
| Path to get DLL's: C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\ISAPI |
| |
| The
SharePoint Foundation 2010 managed client object model consists of two
assemblies that contain five namespaces. If you look at the classes
available in those namespaces, you see many classes. Primarily classes
that have direct counterparts to some familiar classes in the SharePoint
Foundation server object model. |
| |
| Following table shows you Client Side classes those are similar to Server Object Model: |
| |
1. Code snippets for How to Load List and List items:
public void LoadList()
{
using (SP.ClientContext ctx = new SP.ClientContext("SharePointSiteURL"))
{
var web = ctx.Web;
// Let's only work with the specific List object and save resources
// by not fetching any other objects
var list = ctx.Web.Lists.GetByTitle("ListName");
// Load only the list variable and execute the query
ctx.Load(list);
ctx.ExecuteQuery();
SP.CamlQuery camlQuery = new SP.CamlQuery();
camlQuery.ViewXml =
@"<View>
<Query>
<Where>
<Eq>
<FieldRef Name='Name'/>
<Value Type='Text'>Shailesh</Value>
</Eq>
</Where>
</Query>
</View>";
SP.ListItemCollection listItems = list.GetItems(camlQuery);
ctx.Load(listItems);
ctx.ExecuteQuery();
//Now you can iterate listitems collection and can get listitems using foreach loop
foreach (SP.ListItem listItem in listItems)
{
//you can get value of list column from listitem as follow:
//listitem["ID"]
//listitem["Name"]
}
}
}
2. Code snippets for How to insert List items to a List:
public void SaveListItem()
{
using (SP.ClientContext ctx = new SP.ClientContext("SharePointSiteURL"))
{
var web = ctx.Web;
var list = ctx.Web.Lists.GetByTitle("ListName");
ctx.Load(list);
ctx.ExecuteQuery();
SP.ListItemCreationInformation itemCreateInfo = new SP.ListItemCreationInformation();
SP.ListItem listItem = list.AddItem(itemCreateInfo);
listItem["Name"] = "Shailesh";
listItem["Surname"] = "Soni";
listItem.Update();
ctx.ExecuteQuery();
}
}
3. Code snippets for update List items in List:
Public void UpdateListItem()
{
using (SP.ClientContext ctx = new SP.ClientContext("SharePointSiteURL"))
{
var web = ctx.Web;
// Let's only work with the specific List object and save resources
// by not fetching any other objects
var list = ctx.Web.Lists.GetByTitle("ListName");
// Load only the list variable and execute the query
ctx.Load(list);
ctx.ExecuteQuery();
SP.CamlQuery camlQuery = new SP.CamlQuery();
camlQuery.ViewXml =
@"<View>
<Query>
<Where>
<Eq>
<FieldRef Name='Name'/>
<Value Type='Text'>Shailesh</Value>
</Eq>
</Where>
</Query>
</View>";
SP.ListItemCollection listItems = list.GetItems(camlQuery);
ctx.Load(listItems);
ctx.ExecuteQuery();
//Now you can iterate listitems collection and can get listitems using foreach loop
foreach (SP.ListItem listItem in listItems)
{
listitem["Address"] = “blah blah blah”;
listitem.Update();
}
ctx.ExecuteQuery();
}
}
4. Code snippets for delete List items in List:
Public void DeleteListItem()
{
using (SP.ClientContext ctx = new SP.ClientContext("SharePointSiteURL"))
{
var web = ctx.Web;
// Let's only work with the specific List object and save resources
// by not fetching any other objects
var list = ctx.Web.Lists.GetByTitle("ListName");
// Load only the list variable and execute the query
ctx.Load(list);
ctx.ExecuteQuery();
SP.CamlQuery camlQuery = new SP.CamlQuery();
camlQuery.ViewXml =
@"<View>
<Query>
<Where>
<Eq>
<FieldRef Name='Name'/>
<Value Type='Text'>Shailesh</Value>
</Eq>
</Where>
</Query>
</View>";
SP.ListItemCollection listItems = list.GetItems(camlQuery);
ctx.Load(listItems);
ctx.ExecuteQuery();
//Now you can iterate listitems collection and can get listitems using foreach loop
foreach (SP.ListItem listItem in listItems)
listItem.DeleteObject();
ctx.ExecuteQuery();
}
}
Conclusion: The above code snippets and detail description will help you to understand Client Object Model to begin with SharePoint 2010.
Reference:
http://weblogs.asp.net/shailesh/sharepoint-2010-introduction-to-client-object-model
