I have the following requirement. I have stored a list of dictionary items. I want Dictionary Key to be unique. I have written the following code like whenever any new item is saving with existing key name, it should throw an alert like "Item already exist".
What I am doing is like comparing the Key value with existing dictionary keys while saving the item. I have written the code in the ItemSaving event.
public class IsItemExist
{
Sitecore.Data.Database master = Sitecore.Configuration.Factory.GetDatabase("master");
public void OnItemSaving(object sender, EventArgs args)
{
Item dbItem = master.GetItem("/sitecore/content/Administration/Development Settings/Lookups");
Item selectedItem = Event.ExtractParameter(args, 0) as Item;
foreach (Item item in dbItem.Axes.GetDescendants())
{
if (item.Template.Name.Contains("entry"))
{
if (item.Fields["Key"].Value == selectedItem.Fields["Key"].Value)
{
Sitecore.Context.ClientPage.ClientResponse.Alert("Item is already exist");
}
}
}
}
}
web.config entry
<event name="item:saving">
<handler type="CustomEvent.IsItemExist, CustomEvent" method="OnItemSaving"/>
</event>
It's showing alert message and i am able to save the item. 1.I don't want to save the Item with duplicate value again. 2.I am getting 2 alert messges when click on the save button.why?
any help will be appreciated.Thanks Guys..
You should add your handler to item:adding
event and set the Cancel
property of the event result to true
:
<event name="item:adding">
<handler type="CustomEvent.DoesItemExist, CustomEvent" method="OnItemAdding" />
</event>
public class DoesItemExist
{
Sitecore.Data.Database master = Sitecore.Configuration.Factory.GetDatabase("master");
public void OnItemAdding(object sender, EventArgs args)
{
Item dbItem = master.GetItem("/sitecore/content/Administration/Development Settings/Lookups");
Item selectedItem = Event.ExtractParameter(args, 0) as Item;
foreach (Item item in dbItem.Axes.GetDescendants())
{
if (item.Template.Name.Contains("entry"))
{
if (item.Fields["Key"].Value == selectedItem.Fields["Key"].Value)
{
SitecoreEventArgs evt = args as SitecoreEventArgs;
evt.Result.Cancel = true;
Sitecore.Context.ClientPage.ClientResponse.Alert("Item already exists");
}
}
}
}
}
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