How to create items programmatically in Sitecore - asp.net

Question

In the content tree, the structure is as follows
Home
-England
-France
-Germany
There is a sublayout (CommentsForm.ascx), which is used in all the 3 pages. When user browses 'France' and submits a comment, the 'Comment' item should get saved under 'France' and so on..
In this scenario, the Parent item (under which the new item has to be created), is dynamic. So, how to get the parent item in such case. Is this correct?
protected void btnSubmit_Click(object sender, EventArgs e)
{
Sitecore.Data.Database masterDB = Sitecore.Configuration.Factory.GetDatabase("master");
Item parentItem = Sitecore.Context.Item;
string name = "Comment_" + Sitecore.DateUtil.IsoNow;
TemplateItem template = masterDb.GetTemplate("/sitecore/templates/userdefined/Comment");
using (new SecurityDisabler())
{
//how to go about here??
//newItem["Author"] = txtAuthor.text;
//newItem["CommentText"] = txtComments.Text;
//parentItem.Add("name", template);
}
}

Answer 1

You can use UserSwitcher safer in production, but you can also use SecurityDisabler using(newSecurityDisabler()){}
Editing and renaming must happen in an Editing.BeginEdit() transaction
Sitecore.Data.Database masterDB = Sitecore.Configuration.Factory.GetDatabase("master");
Item parentItem = Sitecore.Context.Item;
string name = "Comment_" + Sitecore.DateUtil.IsoNow;
var template = masterDb.GetTemplate("/sitecore/templates/userdefined/Comment");
using (new Sitecore.SecurityModel.SecurityDisabler())
{
try
{
Item newItem = parentItem.Add("Name", template);
if (newItem!=null)
{
newItem.Editing.BeginEdit();
newItem["Author"] = txtAuthor.text;
newItem["CommentText"] = txtComments.Text;
newItem.Editing.EndEdit();
}
}
catch
{
newItem.Editing.CancelEdit();
}
}

Answer 2

Create items programmatically based on template in sitecore using the simple code
// The SecurityDisabler is required which will overrides the current security model, allowing the code
// to access the item without any security.
using (new Sitecore.SecurityModel.SecurityDisabler())
{
// Get the master database
Sitecore.Data.Database master = Sitecore.Data.Database.GetDatabase("master");
// Get the template for which you need to create item
Items.TemplateItem template = master.GetItem("/sitecore/templates/Sample/Sample Item");
// Get the place in the site tree where the new item must be inserted
Item parentItem = master.GetItem("/sitecore/content/home");
// Add the item to the site tree
Item newItem = parentItem.Add("NameOfNewItem", template);
// Set the new item in editing mode
// Fields can only be updated when in editing mode
// (It's like the begin transaction on a database)
newItem.Editing.BeginEdit();
try
{
// Assign values to the fields of the new item
newItem.Fields["Title"].Value = "NewValue1";
newItem.Fields["Text"].Value = "NewValue2";
// End editing will write the new values back to the Sitecore
// database (It's like commit transaction of a database)
newItem.Editing.EndEdit();
}
catch (System.Exception ex)
{
// Log the message on any failure to sitecore log
Sitecore.Diagnostics.Log.Error("Could not update item " + newItem.Paths.FullPath + ": " + ex.Message, this);
// Cancel the edit (not really needed, as Sitecore automatically aborts
// the transaction on exceptions, but it wont hurt your code)
newItem.Editing.CancelEdit();
}
}

Answer 3

using (new Sitecore.SecurityModel.SecurityDisabler())
{
Item newItem = parentItem.Add("Name", TemplateItem.TemplateId);
newItem.Editing.BeginEdit();
newItem.Fields[Constants.IDs.Fields.SicParent.Code].Value = row.SicCode.ToString();
newItem.Fields[Constants.IDs.Fields.SicParent.Description].Value = row.Description;
// this field is a DropList
newItem.Fields[Constants.IDs.Fields.SicParent.Grouping].SetValue(groupItem, true);
newItem.Editing.EndEdit();
}

Answer 4

You can add and item to parentItem and then edit the new item like this:
using (new SecurityDisabler())
{
Item newItem = parentItem.Add("name", template);
newItem.Editing.BeginEdit();
newItem["Author"] = txtAuthor.text;
newItem["CommentText"] = txtComments.Text;
newItem.Editing.EndEdit();
}