Question

我使用asp.net 3.5（visual studio 2008）图表控件创建了一个示例柱形图，通过绑定数据库中的值来控制它。它正在工作。现在我想在同一图表的y轴上显示直线和柱形图。可能吗？我在下面的链接中复制了相同的代码。但它没有显示任何内容。

https://www.experts-exchange.com/viewCodeSnippet.jsp?codeSnippetId=20-40238814-1

Answer 1

您需要将Chart对象实际放到屏幕上。简单的对接可以解决问题。

var express = require('express');
var http = require('http');
var app = express();
var methodOverride = require('method-override');
var bodyParser = require('body-parser');
var multer  = require('multer');
var multerS3 = require('multer-s3');
var AWS = require('aws-sdk');

app.use(methodOverride());
app.use(bodyParser.urlencoded({ extended: true }));

//Create S3 client
var s3 = new AWS.S3();

//this code is copy directly from multer-s3 since I don't care about my file name shown on S3 for now
var upload = multer({
  storage: multerS3({
    s3: s3,
    bucket: mybuckname,
    metadata: function (req, file, cb) {
      cb(null, {fieldName: file.fieldname});
    },
    key: function (req, file, cb) {
      cb(null, Date.now().toString())
    }
  })
});

app.post('/create', upload.single('image'), function(req, res) {
    var nameField = req.body.name,
        topicField = req.body.topic;
    console.log("File: ", req.file);

    console.log("Name: ", nameField);
    console.log("Topic: ", topicField);
    res.sendStatus(200);

    res.end();
});

使用asp.net 3.5图表控件的列折线图

1 个答案: