I would like to create a new property to the propertybag. And it needs to be indexed by search. I try this but it is not working:

private void CreatePropertyBagItem(Web web, string key,  string value)
            web.Context.Load(web, w => w.AllProperties);

            //Execute query

            //set property bag
            web.AllProperties[key] = value;

            //Update and write back to web

When I remove the row with "AddIndexedPropertyBagKey" it creates successfully a new property in the propertybag, but it is not indexed.

ps. I try to do this in CSOM code.


There is no AddIndexedPropertyBagKey method in CSOM. Add your property as per normal (Web.AllProperties.FieldValues.Add()) and then add it to the base64 encoded property vti_indexedpropertykeys.

Vesa Juvonen has methods here.

  • This methode (AddIndexedPropertyBagKey) exist. It is an extension method of the [OfficeDevPnP.Core] (github.com/OfficeDev/PnP/tree/…). But you are right, to do that (without OfficeDevPnP) you have to ADD you property in property bag, and after add your new property in the vti_indexedpropertykeys – Nico Oct 28 '16 at 14:56
  • Why is my example not working with the pnp solution? – Ola Oct 30 '16 at 9:04

Based on the your comments and my investigation, it looks like there is some issue with the PnP code. Use it as below:

public void UpdateMetadata(ClientContext clientContext, string key)
    var props = clientContext.Web.AllProperties;

    // Confirm that property bag values are indexed by search
    List<string> keys = new List<string>();
    SetPropertyValue(clientContext, props, "vti_indexedpropertykeys", GetEncodedValueForSearchIndexProperty(keys));

public static string GetEncodedValueForSearchIndexProperty(List<string> keys)
    StringBuilder stringBuilder = new StringBuilder();
    foreach (string current in keys)
    return stringBuilder.ToString();

public void SetPropertyValue(ClientContext clientContext, PropertyValues props, string key, string value)
    props[key] = value;
  • I already using the office dev pnp dll from nuget. But why is my code example not working? What I am doing wrong. The solution is building, but there is nog property in the propertybag. – Ola Oct 30 '16 at 9:03
  • have updated the answer. Please check. – Gautam Sheth Oct 30 '16 at 13:03

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