Check Number of notes attached to a Crm Record.

Write below code on save of the entity.

var CRM_FORM_TYPE_CREATE = 1;

if (crmForm.FormType == CRM_FORM_TYPE_CREATE)

{

    var obj=document.frames(”notescontrol”).document;

    var textarea=obj.getElementsByTagName(’TEXTAREA’);

    if (textarea.length < 1)

    {

        alert (”please eneter somenotes”);

        // Cancel the save

        event.returnValue = false;

    }

}

CRM Form Types

Is the user creating a new record?
crmForm.FormType == 1

Is the user updating an existing record
crmForm.FormType ==2

Is the user unable to update this record?
crmForm.FormType == 3

Is this record deactivated?
crmForm.FormType == 4

Is the user using the Quick Create form?
crmForm.FormType == 5

Is the user using the Bulk Edit form?
crmForm.FormType == 6

What is the unique ID for this record?
= crmForm.ObjectId

What type of record is this?
= crmForm.ObjectTypeCode

What type of record is this (Entity Name)?
= crmForm.ObjectTypeName

Is the user using the Outlook Client?
crmForm.IsForOutlookClient==true

Is the user using the Outlook Light Client?
crmForm.IsForOutlookLightClient == true

Is the user working On line?
crmForm.IsOnline==true

Have any fields in this form been changed?
crmForm.IsDirty==true

Hide all Tabs on CRM Form

//Below is the javascript code, which will hide all tabs on CRM form.

document.getElementById("crmTabBar").style.display = "none";

//If you want to hide a specific tab, use below code:

document.getElementById("tab0Tab").style.display = "none";

//Here "tab0Tab" is first tab on the Crm Form.

How to attach onClose event to MS CRM Entity.

When you work with CRM Forms, if you want to capture / attach a onClose() Event, just use below javascript code.

window.onunload = function() {
    //add code here
} 

Delete / DisAssociate Many to Many Relationship Record.

When you say DisAssocaiating a Many to Many Relationship Record, then you usually deattach the record, you won't delete the record.

Below function will DisAssocaiate a record. Here, you need to pass three parameter values
Parent Entity Guid,
Child Entity Guid, and
Relationship Name.

public bool DisassociateManyToManyEntityRecords(Moniker Moniker1, Moniker Moniker2, string strEntityRelationshipName)
{
    try
    {
        // Create a request.
        DisassociateEntitiesRequest request = new DisassociateEntitiesRequest();

        // Assign the request a moniker for both entities that need to be disassociated.
        request.Moniker1 = Moniker1;
        request.Moniker2 = Moniker2;

        // Set the relationship name that associates the two entities.
        request.RelationshipName = strEntityRelationshipName.Trim();
 

        // Execute the request.
        DisassociateEntitiesResponse response = (DisassociateEntitiesResponse)Service.Execute(request);

        return true;
    } 

    catch (SoapException ex)
    {
        return false;
    }
}