<Create> provides us a layout to display the page. It does not contain any logic but adds extra functionalities like action buttons and giving titles to the page.
We'll show what <Create> does using properties with examples.
import React from "react";
import { Create, useAutocomplete } from "@refinedev/mui";
import { Autocomplete, Box, TextField } from "@mui/material";
import { useForm } from "@refinedev/react-hook-form";
import { Controller } from "react-hook-form";
const SampleCreate = () => {
    const {
        saveButtonProps,
        refineCore: { formLoading },
        register,
        control,
        formState: { errors },
    } = useForm();
    const { autocompleteProps: categoryAutocompleteProps } = useAutocomplete({
        resource: "categories",
    });
    return (
        <Create isLoading={formLoading} saveButtonProps={saveButtonProps}>
            <Box
                component="form"
                sx={{ display: "flex", flexDirection: "column" }}
                autoComplete="off"
            >
                <TextField
                    {...register("title", {
                        required: "This field is required",
                    })}
                    error={!!(errors as any)?.title}
                    helperText={(errors as any)?.title?.message}
                    margin="normal"
                    fullWidth
                    InputLabelProps={{ shrink: true }}
                    type="text"
                    label="Title"
                    name="title"
                />
                <TextField
                    {...register("content", {
                        required: "This field is required",
                    })}
                    error={!!(errors as any)?.content}
                    helperText={(errors as any)?.content?.message}
                    margin="normal"
                    fullWidth
                    InputLabelProps={{ shrink: true }}
                    multiline
                    label="Content"
                    name="content"
                />
                <Controller
                    control={control}
                    name="category"
                    rules={{ required: "This field is required" }}
                    
                    defaultValue={null as any}
                    render={({ field }) => (
                        <Autocomplete
                            {...categoryAutocompleteProps}
                            {...field}
                            onChange={(_, value) => {
                                field.onChange(value);
                            }}
                            getOptionLabel={(item) => {
                                return (
                                    categoryAutocompleteProps?.options?.find(
                                        (p) =>
                                            p?.id?.toString() ===
                                            item?.id?.toString(),
                                    )?.title ?? ""
                                );
                            }}
                            isOptionEqualToValue={(option, value) =>
                                value === undefined || option?.id?.toString() === (value?.id ?? value)?.toString()
                            }
                            renderInput={(params) => (
                                <TextField
                                    {...params}
                                    label="Category"
                                    margin="normal"
                                    variant="outlined"
                                    error={!!(errors as any)?.category?.id}
                                    helperText={
                                        (errors as any)?.category?.id?.message
                                    }
                                    required
                                />
                            )}
                        />
                    )}
                />
            </Box>
        </Create>
    );
};
You can swizzle this component to customize it with the refine CLI
Properties
title
It allows adding title inside the <Create> component. if you don't pass title props it uses "Create" prefix and singular resource name by default. For example, for the /posts/create resource, it will be "Create post".
import { Create } from "@refinedev/mui";
import { Typography } from "@mui/material";
const CreatePage: React.FC = () => {
    return (
        <Create
            title={<Typography variant="h5">Custom Title</Typography>}
        >
            <span>Rest of your page here</span>
        </Create>
    );
};
resource
The <Create> component reads the resource information from the route by default. If you want to use a custom resource for the <Create> component, you can use the resource prop.
import { Create } from "@refinedev/mui";
const CustomPage: React.FC = () => {
    return (
        <Create resource="posts">
            <span>Rest of your page here</span>
        </Create>
    );
};
<Create> component has a default button that submits the form. If you want to customize this button you can use the saveButtonProps property like the code below.
Refer to the <SaveButton> documentation for detailed usage. →
import { Create } from "@refinedev/mui";
const PostCreate: React.FC = () => {
    return (
        <Create saveButtonProps={{ size: "small" }}>
            <span>Rest of your page here</span>
        </Create>
    );
};
goBack
To customize the back button or to disable it, you can use the goBack property.
import { Create } from "@refinedev/mui";
import { Button } from "@mui/material";
import { useBack } from "@refinedev/core";
const BackButton = () => {
    const goBack = useBack();
    return <Button onClick={() => goBack()}>BACK!</Button>;
};
const PostCreate: React.FC = () => {
    return (
        <Create
            goBack={<BackButton />}
        >
            <span>Rest of your page here</span>
        </Create>
    );
};
isLoading
To toggle the loading state of the <Create/> component, you can use the isLoading property.
import { Create } from "@refinedev/mui";
const PostCreate: React.FC = () => {
    const [loading, setLoading] = React.useState(true);
    return (
        <Create
            isLoading={loading}
        >
            <span>Rest of your page here</span>
        </Create>
    );
};
breadcrumb
To customize or disable the breadcrumb, you can use the breadcrumb property. By default it uses the Breadcrumb component from @refinedev/mui package.
Refer to the Breadcrumb documentation for detailed usage. →
This feature can be managed globally via the <Refine> component's options
import { Create, Breadcrumb } from "@refinedev/mui";
const PostCreate: React.FC = () => {
    return (
        <Create
            breadcrumb={
                <div
                    style={{
                        padding: "3px 6px",
                        border: "2px dashed cornflowerblue",
                    }}
                >
                    <Breadcrumb />
                </div>
            }
        >
            <span>Rest of your page here</span>
        </Create>
    );
};
wrapperProps
If you want to customize the wrapper of the <Create/> component, you can use the wrapperProps property.
Refer to the Card documentation from Material UI for detailed usage. →
import { Create } from "@refinedev/mui";
const PostCreate: React.FC = () => {
    const [loading, setLoading] = React.useState(true);
    return (
        <Create
            wrapperProps={{
                sx: {
                    backgroundColor: "lightsteelblue",
                },
            }}
        >
            <span>Rest of your page here</span>
        </Create>
    );
};
If you want to customize the header of the <Create/> component, you can use the headerProps property.
Refer to the CardHeader documentation from Material UI for detailed usage. →
import { Create } from "@refinedev/mui";
const PostCreate: React.FC = () => {
    const [loading, setLoading] = React.useState(true);
    return (
        <Create
            headerProps={{
                sx: {
                    backgroundColor: "lightsteelblue",
                },
            }}
        >
            <span>Rest of your page here</span>
        </Create>
    );
};
contentProps
If you want to customize the content of the <Create/> component, you can use the contentProps property.
Refer to the CardContent documentation from Material UI for detailed usage. →
import { Create } from "@refinedev/mui";
const PostCreate: React.FC = () => {
    const [loading, setLoading] = React.useState(true);
    return (
        <Create
            contentProps={{
                sx: {
                    backgroundColor: "lightsteelblue",
                },
            }}
        >
            <span>Rest of your page here</span>
        </Create>
    );
};
You can customize the buttons at the header by using the headerButtons property. It accepts React.ReactNode or a render function ({ defaultButtons }) => React.ReactNode which you can use to keep the existing buttons and add your own.
import { Create } from "@refinedev/mui";
import { Button } from "@mui/material";
const PostCreate: React.FC = () => {
    const [loading, setLoading] = React.useState(true);
    return (
        <Create
            headerButtons={({ defaultButtons }) => (
                <>
                    {defaultButtons}
                    <Button type="primary">Custom Button</Button>
                </>
            )}
        >
            <span>Rest of your page here</span>
        </Create>
    );
};
You can customize the wrapper element of the buttons at the header by using the headerButtonProps property.
Refer to the Box documentation from Material UI for detailed usage. →
import { Create } from "@refinedev/mui";
import { Button } from "@mui/material";
const PostCreate: React.FC = () => {
    const [loading, setLoading] = React.useState(true);
    return (
        <Create
            headerButtonProps={{
                sx: {
                    backgroundColor: "lightsteelblue",
                },
            }}
            headerButtons={({ defaultButtons }) => (
                <>
                    {defaultButtons}
                    <Button type="primary">Custom Button</Button>
                </>
            )}
        >
            <span>Rest of your page here</span>
        </Create>
    );
};
You can customize the buttons at the footer by using the footerButtons property. It accepts React.ReactNode or a render function ({ defaultButtons }) => React.ReactNode which you can use to keep the existing buttons and add your own.
import { Create } from "@refinedev/mui";
import { Button } from "@mui/material";
const PostCreate: React.FC = () => {
    const [loading, setLoading] = React.useState(true);
    return (
        <Create
            footerButtons={({ defaultButtons }) => (
                <>
                    {defaultButtons}
                    <Button type="primary">Custom Button</Button>
                </>
            )}
        >
            <span>Rest of your page here</span>
        </Create>
    );
};
You can customize the wrapper element of the buttons at the footer by using the footerButtonProps property.
Refer to the CardActions documentation from Material UI for detailed usage. →
import { Create } from "@refinedev/mui";
import { Button } from "@mui/material";
const PostCreate: React.FC = () => {
    const [loading, setLoading] = React.useState(true);
    return (
        <Create
            footerButtonProps={{
                sx: {
                    backgroundColor: "lightsteelblue",
                },
            }}
            footerButtons={({ defaultButtons }) => (
                <>
                    {defaultButtons}
                    <Button type="primary">Custom Button</Button>
                </>
            )}
        >
            <span>Rest of your page here</span>
        </Create>
    );
};
API Reference
Properties
const SampleList = () => {
    const { dataGridProps } = RefineMui.useDataGrid();
    const { data: categoryData, isLoading: categoryIsLoading } =
        RefineCore.useMany({
            resource: "categories",
            ids:
                dataGridProps?.rows?.map((item: any) => item?.category?.id) ??
                [],
            queryOptions: {
                enabled: !!dataGridProps?.rows,
            },
        });
    const columns = React.useMemo<GridColumns<any>>(
        () => [
            {
                field: "id",
                headerName: "Id",
                type: "number",
                minWidth: 50,
            },
            {
                field: "title",
                headerName: "Title",
                minWidth: 200,
            },
            {
                field: "category",
                headerName: "Category",
                valueGetter: ({ row }) => {
                    const value = row?.category?.id;
                    return value;
                },
                minWidth: 300,
                renderCell: function render({ value }) {
                    return categoryIsLoading ? (
                        <>Loading...</>
                    ) : (
                        categoryData?.data?.find((item) => item.id === value)
                            ?.title
                    );
                },
            },
            {
                field: "createdAt",
                headerName: "Created At",
                minWidth: 250,
                renderCell: function render({ value }) {
                    return <RefineMui.DateField value={value} />;
                },
            },
        ],
        [categoryData?.data],
    );
    return (
        <RefineMui.List>
            <MuiXDataGrid.DataGrid
                {...dataGridProps}
                columns={columns}
                autoHeight
            />
        </RefineMui.List>
    );
};
const Wrapper = ({ children }) => {
    return (
        <MuiMaterial.ThemeProvider theme={RefineMui.LightTheme}>
            <MuiMaterial.CssBaseline />
            <MuiMaterial.GlobalStyles
                styles={{ html: { WebkitFontSmoothing: "auto" } }}
            />
            {children}
        </MuiMaterial.ThemeProvider>
    );
};