🧾 Blog: How to Make Financial Dimension Value Read-Only Using X++ in D365FO

In Dynamics 365 Finance and Operations, developers can use DimensionAttributeSetStorage to customize the behavior of financial dimensions in form controls. This tutorial shows how to make a particular financial dimension value read-only (e.g., Business Unit) using X++.

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🛠️ Scenario

You want to restrict users from editing a specific dimension like Business Unit while allowing edits on the rest. This can be controlled at runtime using parmEditableDimensionSet.

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✅ Final Output

A financial dimension control where "Business Unit" is visible but locked for editing, while other dimensions remain editable.

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🧩 Step-by-Step X++ Code (Rewritten with New Buffers)

x++
public void init()
{
    DimensionAttribute               dimAttributeBuffer;
    DimensionAttributeSetStorage     editableDimStorage;
    DimensionEnumeration             allowedDimensionSet;

    next init(); // Call base init

    editableDimStorage = new DimensionAttributeSetStorage();

    // Loop through all financial dimensions except Business Unit
    while select RecId, HashKey from dimAttributeBuffer
        where dimAttributeBuffer.Type != DimensionAttributeType::MainAccount
           && dimAttributeBuffer.Type != DimensionAttributeType::DynamicAccount
           && dimAttributeBuffer.Name != "Business Unit"
    {
        editableDimStorage.addItem(
            dimAttributeBuffer.RecId,
            dimAttributeBuffer.HashKey,
            NoYes::Yes // Allow Edit
        );
    }

    allowedDimensionSet = editableDimStorage.save();

    // Apply the filtered set to dimension control
    if (allowedDimensionSet)
    {
        DimensionEntryControlTable.parmEditableDimensionSet(allowedDimensionSet);
        DimensionEntryControlTable.allowEdit(true); // Overall editable, except Business Unit
    }
}

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🧠 Notes:

• DimensionEntryControlTable refers to the dimension control used on your form.

• This customization is typically done on the form's init() method or inside a controller class.

• Replace "Business Unit" with any other dimension name you want to lock.

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📚 Related D365FO Topics You May Like:

• How to add new financial dimension in D365FO

• Extending forms using event handlers in D365FO