这个问题通常是由于 GridOptions 没有正确设置引起的。以下示例代码可以作为参考：

from flask import Flask, render_template
from flask_wtf import FlaskForm
from wtforms import StringField, SubmitField
from wtforms.validators import DataRequired
from flask_sqlalchemy import SQLAlchemy
from flask_bootstrap import Bootstrap
from ag_grid.formatters import NumberFormatter
from ag_grid.ag_grid import AgGrid
from ag_grid.column import SelectColumn, ValueColumn, Column, AgGridColumn_static

app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///test.db'
app.config['SECRET_KEY'] = 'SecretKey'
bootstrap = Bootstrap(app)
db = SQLAlchemy(app)

class Book(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String(80), nullable=False)
    author = db.Column(db.String(80), nullable=False)

    def __repr__(self):
        return '' % self.title

class BookForm(FlaskForm):
    title = StringField('Title', validators=[DataRequired()])
    author = StringField('Author', validators=[DataRequired()])
    submit = SubmitField('Add Book')

@app.route('/', methods=['GET', 'POST'])
def index():
    form = BookForm()

    if form.validate_on_submit():
        book = Book(title=form.title.data, author=form.author.data)
        db.session.add(book)
        db.session.commit()

    column_list = [
        Column('id', title='ID', type='numericColumn'),
        ValueColumn('title', title='Title'),
        ValueColumn('author', title='Author'),
        AgGridColumn_static('Actions',
                            cellRenderer='actionsCellRenderer',
                            valueGetter='Actions', suppressSorting=True,
                            suppressMenu=True, suppressFilter=True),
        SelectColumn([], multiple=True, suppressMenu=True)
    ]

    data = []

    for book in Book.query.all():
        data.append({
            'id': book.id,
            'title': book.title,
            'author': book.author,
            'Actions': ''
        })

    options = {
        'rowData': data,
        'columnDefs': [column.to_dict() for column in column_list],
        'suppressMovableColumns': True,
        'enableColResize': True,
        'enableSorting': True,
        'enableFilter': True,
        'rowSelection': 'multiple'
    }

    return render_template('index.html', form=form, grid=AgGrid(data, options=options))

if __name__ == '__main__':
    app.run(debug=True)

在此示例代码中，我们使用 Flask 框架，使用 SQLAlchemy 连接 SQLite 数据库，并定义了一个名为'Book”的数据模型。然