将过滤后的值传递给 react render()

Question

我使用 react-datagrid 来表示我的文档 table，但我不知道如何使用完整数据实例化 render() 范围。它总是在没有数据的情况下实例化。

这是我的数据网格

'use strict';

 var React    = require('react')
 var DataGrid = require('react-datagrid')


 var columns = [
     { name: 'id', title: '#', width: 50 },
     { name: 'business_id', flex: 1 },
     { name: 'lastName'  },
     { name: 'city', flex: 1 },
     { name: 'country', flex: 1 },
     { name: 'email', width: 200 }
  ]

  var App = React.createClass({

    initData: function(documents){
        if(documents){
            return documents;
        } else {
            console.log('documents: '+ this.props.documents);
            return this.props.documents;
        }
    },
    getInitialState: function(){
        return {
            dataSource: [],
        }
    },
    componentDidMount() {
        this.setState({
            dataSource: this.initData()
        })
    },
    render: function(){
      console.log('this.props.documents: '+ this.props.documents)
      return <DataGrid
        idProperty='id'
        dataSource={this.initData()}
        columns={columns}
        style={{height: 400}}

        onFilter={this.handleFilter}
        liveFilter={true} //to apply the filter while typing
     />
    },

   handleFilter: function(column, value, allFilterValues){
    //reset data to original data-array
    var data = this.initData()

    //go over all filters and apply them
    Object.keys(allFilterValues).forEach(function(name){
        var columnFilter = (allFilterValues[name] + '').toUpperCase()

        if (columnFilter == ''){
            return
        }

        data = data.filter(function(item){
            if ((item[name] + '').toUpperCase().indexOf(columnFilter) === 0){
                return true
            }
        })

      })
      this.initData(data)
      this.setState({})
    }
   })

第一个控制台日志returns没什么

documents:

render()中的控制台日志returns数据

this.props.documents:[object Object],[object Object],[object Object],[object Object],[object Object]

这就是我从主组件调用数据网格组件的方式

<DocumentReactNewGrid documents={this.state.documents}/>

Answer 1

将数据源设为 state。在过滤器上，将新数据设置为 state。这将使用新数据重新呈现组件。

'use strict';

 var React    = require('react')
 var DataGrid = require('react-datagrid')


var columns = [
   { name: 'id', title: '#', width: 50 },
   { name: 'business_id', flex: 1 },
   { name: 'lastName'  },
   { name: 'city', flex: 1 },
   { name: 'country', flex: 1 },
   { name: 'email', width: 200 }
]

var App = React.createClass({
  initData: function(documents){
    if(documents){
        return documents;
    } else {
        return this.props.documents;
    }
   },
  getInitialState: function(){
    return { 
      dataSource: this.initData(),
    }
  },
  componentWillReceiveProps(nextProps) {
    this.setState({
     dataSource: nextProps.documents,
    })
  },
  render: function(){
    return <DataGrid
        idProperty='id'
        dataSource={this.state.dataSource}
        columns={columns}
        style={{height: 400}}

        onFilter={this.handleFilter}
        liveFilter={true} //to apply the filter while typing
    />
   },


   handleFilter: function(column, value, allFilterValues){
    //reset data to original data-array
    var data = this.initData()

    //go over all filters and apply them
    Object.keys(allFilterValues).forEach(function(name){
        var columnFilter = (allFilterValues[name] + '').toUpperCase()

        if (columnFilter == ''){
            return
        }

        data = data.filter(function(item){
            if ((item[name] + '').toUpperCase().indexOf(columnFilter) === 0){
                return true
            }
        })

      })
      this.setState({
        dataSource: data
      })
    }
   })

希望对您有所帮助！

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