使用对象模型来创建内容类型

private SPContentType CreateContentType(SPWeb web, string typeName,string baseTypeName,
string description)
{
SPContentType contentType = null;
try
{
SPContentType baseType;
if (string.IsNullOrEmpty(baseTypeName))
{
baseType = web.AvailableContentTypes[SPContentTypeId.Empty];
}
else
{
baseType = web.AvailableContentTypes[baseTypeName];
}
contentType = new SPContentType(baseType, web.ContentTypes, typeName);
contentType.Description = description;
web.ContentTypes.Add(contentType);
}
catch
{
}
return contentType;
}

private SPField AddField(SPContentType contentType, string fieldDisplayName,
SPFieldType fieldType, bool bRequired)
{
SPField field = null;
try
{
using (SPWeb web = contentType.ParentWeb)
{
web.Fields.Add(fieldDisplayName, fieldType, bRequired);
field = web.Fields[fieldDisplayName];
contentType.FieldLinks.Add(new SPFieldLink(field));
}
}
catch
{
}
return field;
}

private SPField AddField(SPContentType contentType, string fieldDisplayName,
SPFieldType fieldType, bool bRequired,
bool bCompactName, StringCollection choices)
{
SPField field = null;
try
{
using (SPWeb web = contentType.ParentWeb)
{
web.Fields.Add(fieldDisplayName, fieldType, bRequired, bCompactName, choices);
field = web.Fields[fieldDisplayName];
// add a field link to the content type
contentType.FieldLinks.Add(new SPFieldLink(field));
}
}
catch
{
}
return field;
}

private void AddContentType(SPWeb web)
{
if (web != null)
{
web.AllowUnsafeUpdates = true;
SPContentType contentType = CreateContentType(web, "OnlineEvent11", "Event", "OnlineEvent11");
if (contentType != null)
{
StringCollection statusColl = new StringCollection();
statusColl.Add("Approved");
statusColl.Add("Rejected");
AddField(contentType, "Event Status", SPFieldType.Choice,true, false, statusColl);

AddField(contentType, "Number Of Attendees",SPFieldType.Number, false);

StringCollection eventType = new StringCollection();
eventType.Add("Business/Career");
eventType.Add("Classes & Lectures");
eventType.Add("Dinners/Galas");
eventType.Add("Fundraiser");
eventType.Add("Misc");
eventType.Add("Seminars");
eventType.Add("Support Groups");
AddField(contentType, "Type Of Event", SPFieldType.Choice,true, false, eventType);

StringCollection audienceType = new StringCollection();
audienceType.Add("Adults");
audienceType.Add("Everyones' Invited");
audienceType.Add("Families");
audienceType.Add("Kids");
audienceType.Add("Men");
audienceType.Add("Seniors");
audienceType.Add("Singles");
audienceType.Add("Teens");
audienceType.Add("Women");
AddField(contentType, "Audience Type", SPFieldType.MultiChoice, true, false, audienceType);

contentType.Update(true);
}
}
}

public override void FeatureActivated(SPFeatureReceiverProperties properties)
{
if (properties != null)
{
SPWeb web = properties.Feature.Parent as SPWeb;
if (web != null)
{
AddContentType(web);
}
}
}

public override void FeatureDeactivating(SPFeatureReceiverProperties properties)
{ }
public override void FeatureInstalled(SPFeatureReceiverProperties properties)
{ }
public override void FeatureUninstalling(SPFeatureReceiverProperties properties)
{ }