Saturday, August 30, 2008
Friday, August 29, 2008
How good is that?? No need to buy a CD/DVD. Just mount the tool whenever you need to run the install.
Thursday, August 28, 2008
1) Feature way:
Create a feature.xml in the normal way as you do for any other feature. Here is the example:
"<"!--Created by Kunal Kochhar at 18/08/2008 10:21:18 AM--">"
"<"Feature Id="66D0E36C-4D48-46D0-90E9-7BFGHFBE4E3C" Title="Item receiver attacher" Description="This feature will attach event handler to a task item generated by Disposition workflow" Version="22.214.171.124" Scope="Web" Hidden="false" ImageUrl="CustomBranding.gif" xmlns="http://schemas.microsoft.com/sharepoint/"">"
"<"ElementManifest Location="elements.xml" /">"
Now write the elements.xml file. This file will have Receivers tag. Read here more about Receivers element:
Let me show you the elements file:
'<'Assembly'>'assemblyname, [full four part]'<'/Assembly'>'
As you can see I am saying ListTemplateId=107 in the Receivers element. This id is the List Template Id for Tasks list type. You can refer to more list template ids here: http://msdn.microsoft.com/en-us/library/ms431081.aspx
Once you deploy and activate this feature on web it will attach your required event handler with all the existing tasks lists or any new ones that you create.
2) Lets see the second approach which is through code. The SPWeb object exposes list templates and contenttypes collections. You can retreive the required list template type and content type and can add your eventreceiver assembly in their eventreceivers collection. Here is an example to add it to a content type:
SPWeb web = SPContext.Current.Web;
SPContentType ct = web.ContentTypes["Tasks"];
SPEventReceiverDefinition receiverDef = ct.EventReceivers.Add();
receiverDef.Name = "Custom_ItemAdded";
receiverDef.Type = SPEventReceiverType.ItemAdded;
receiverDef.SequenceNumber = 10012;
receiverDef.Assembly = "assembly, [full four part assembly details]";
receiverDef.Class = "namespacename.classname";
I hope this will help some of you. If you have any queries in relation to this then please feel free to write to me.
Wednesday, August 27, 2008
Monday, August 25, 2008
What you can do is, Task list exposes few properties which are hidden which tells the exact workflow information. The three properties which are of our interests are:
Workflow List ID (This represents the document library ID from where the workflow was initiated)
Workflow Item ID (This represents the document for which the work flow is initiated)
ows_WorkflowInstanceID (This is the workflow instance id of the workflow that has been setup for document library. This will help us to get the workflow type)
Let me show you a code snippet to get these details:
public override void ItemAdded(SPItemEventProperties properties)
SPListItem taskItem = properties.ListItem;
//Check if the item added is a Workflow related or not
if (taskItem["Workflow List ID"] != null)
SPWeb web = properties.OpenWeb();
Guid sourceListID = new Guid(taskItem["Workflow List ID"].ToString());
SPList sourceList = web.Lists.GetList(sourceListID, true);
int sourceListItemID = Convert.ToInt32(taskItem["Workflow Item ID"]);
SPListItem sourceListItem = sourceList.GetItemById(sourceListItemID);
//Get the workflow instance id from Task item
Guid taskWorkflowInstanceID = new Guid(taskItem["ows_WorkflowInstanceID"].ToString());
//Get the workflow object
SPWorkflow wf = sourceListItem.Workflows[taskWorkflowInstanceID ]
//Get the workflow association object
SPWorkflowAssociation wfAss = sourceList.WorkflowAssociations[wf.AssociationId];
//Check if the associated workflow is of type Disposition Approval
//This GUID will be same in every MOSS install
if (wfAss.BaseId.Equals(new Guid("dd19a800-37c1-43c0-816d-f8eb5f4a4145")))
//if the workflow is of type disposition then do your action
catch (ArgumentException argex)
catch (SPException spex)
catch (Exception ex)
You will notice that I am checking the base id of the Workflow Association object this gives us the workflow type which has been setup for the document library. In this case I am checking if the base id is of same type of the Disposition workflow. This GUID will be same in every MOSS install. Now in next post I will tell you how you can attach this event receiver with a Task list template type.
Tuesday, August 19, 2008
Event Handler Explorer. This tool allows you to browse and list instances and content types and to attach even handlers manually. This way you will be assured that the event receiver is attached properly.
Thought of sharing this great tool with every one :-)
Sunday, August 17, 2008