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SPC019019: You must call ClientContext.ExecuteQuery() to persist any changes to the server.

When modifying the List object you need to call ClientContext.ExecuteQuery() in order to persist the changes to the server.

CheckId SPC019019
TypeName ExecuteQueryAfterModifyingListObject
Severity Warning
Type Assembly

Bad Practice

using (var context = new ClientContext("http://yoursite"))
{
    Web web = context.Web;
    ListCreationInformation creationInfo = new ListCreationInformation
    {
        Title = "My New List",
        TemplateType = (int) ListTemplateType.GenericList
    };

    List list = web.Lists.Add(creationInfo);
    list.Description = "New List Description";
    list.Update();
}


Good Practice
using (var context = new ClientContext("http://yoursite"))
{
    Web web = context.Web;
    ListCreationInformation creationInfo = new ListCreationInformation
    {
        Title = "My New List",
        TemplateType = (int) ListTemplateType.GenericList
    };

    List list = web.Lists.Add(creationInfo);
    list.Description = "New List Description";

    list.Update();
    context.ExecuteQuery();
}

To suppress this violation in managed code add the following attribute to the method which contains the instruction (available since SPCAF version v5.2). Learn more about SuppressMessage here.

// Important: Ensure to have #define CODE_ANALYSIS at the beginning of your .cs file
[SuppressMessage("SPCAF.Rules.ManagedCSOM.CSOMCorrectnessGroup", "SPC019019:ExecuteQueryAfterModifyingListObject", Justification = "Provide reason for suppression here")]
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