Element - Id

Authoritative source: ref/doc/iced/widget/struct.Id.html.

# Rustdoc summary

The identifier of a generic widget.

# Verified type declaration

pub struct Id(/* private fields */);

# When to use

Use this element struct when you need direct type-level control over a widget value.

# Why to use

It enables strongly typed composition and explicit builder method flows.

# Example References

• ref/examples/todos/src/main.rs
• ref/examples/multi_window/src/main.rs
• ref/examples/delineate/src/main.rs
• ref/examples/gallery/src/civitai.rs
• ref/examples/gallery/src/main.rs

# Related

• Elements
• Constructors

# Use this when...

• You need the concrete widget struct type in signatures.
• You are debugging type errors involving generic bounds.
• You want lower-level control than constructor-only docs provide.

# Minimal example

// Constructors usually produce this element type.
// Name the type explicitly only when type-level APIs need it.

# How it works

Element structs are the underlying widget types used by constructors. Most app code can stay constructor-first, then use element docs for advanced typing/customization.

# Common patterns

// Use constructors in normal UI code,
// and reserve explicit element types for reusable abstractions.

# Gotchas / tips

• You usually do not need to construct element structs directly.
• Read trait bounds carefully when adding custom renderer/theme types.
• If a method is missing, check the related module page.