TypeError: this.setState is not a function in reactjs

Question

我试图在 reselection change.but this.setState() throws error 上设置属性。即使我已经绑定了select构造函数的变化。

编辑：当我尝试 select 列 header 中的复选框中的所有行时，它调用 allSelectedRows() 。这里我得到计数但它没有设置

 rowSelection = {

    onChange: this.onSelectchange,
    onSelectAll: (selected, selectedRows, changeRows) => {
        console.log(selected, selectedRows, changeRows);
        this.allRowsSelected(selected, selectedRows, changeRows);
    },
};
constructor(props) {
    super(props);
    this.state = {           
        selectedRowKeys: []     
    }
    this.onSelectchange= this.onSelectchange.bind(this);        
}
allRowsSelected(selected, selectedRows, changeRows) {
    this.setState({ selectedRowKeys: selectedRows.length });
    console.log(this.state.selectedRowKeys.length);
}

onSelectchange(record){
    console.log(record);
    console.log(this.rowSelection);
    this.setState({ selectedRowKeys: record });

}
render(){
    return(
        <Table
            rowKey={data._id}
            columns={this.columns1}
            rowSelection={this.rowSelection}
            expandedRowRender={(record, index, indent, expanded) =>
            this.expanding(record, expanded)
            }

            onExpand={this.onExpand}
            dataSource={data} />
    )
}

Answer 1

你能更新你的代码如下吗

rowSelection = {
    onChange: (record)=> this.onSelectchange(record),
};

我不确定，但我想这对你有用！如果不起作用请告诉我。

TypeError: this.setState is not a function in reactjs

TypeError: this.setState is not a function in reactjs

reactjs

next.js