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面对Grid for Angular 2的虚拟滚动问题。网格只是在第一页上滚动，然后PageChangeEvent不会触发。我可以向下滚动，但它只是空的空间。什么会影响PageChangeEvent？当我向上滚动到最顶层时，PageChangeEvent被解雇，但字段是{scroll：NaN，take：undefined}。有任何想法吗？Kendo Grid for Angular 2虚拟滚动
我想可能是因为依赖关系？ 这里是我的pachage.json：
"dependencies": {
"@angular/animations": "^4.0.2",
"@angular/common": "^4.0.0",
"@angular/compiler": "^4.0.0",
"@angular/core": "^4.0.0",
"@angular/flex-layout": "^2.0.0-beta.7",
"@angular/forms": "^4.0.0",
"@angular/http": "^4.0.0",
"@angular/material": "^2.0.0-beta.3",
"@angular/platform-browser": "^4.0.0",
"@angular/platform-browser-dynamic": "^4.0.0",
"@angular/router": "^4.0.0",
"@ng-idle/keepalive": "^2.0.0-beta.10",
"@progress/kendo-angular-buttons": "^0.24.0",
"@progress/kendo-angular-dropdowns": "^0.38.2",
"@progress/kendo-angular-grid": "^0.26.1",
"@progress/kendo-angular-inputs": "^0.23.1",
"@progress/kendo-angular-intl": "^0.12.0",
"@progress/kendo-angular-l10n": "^0.3.0",
"@progress/kendo-data-query": "^0.5.1",
"@progress/kendo-drawing": "^0.14.0",
"@progress/kendo-theme-default": "^2.28.0",
"angular2-jwt": "^0.2.2",
"angular2-moment": "^1.3.3",
"core-js": "^2.4.1",
"loaders.css": "^0.1.2",
"lodash": "^4.17.4",
"lodash.camelcase": "^4.3.0",
"ngx-toastr": "^5.0.6",
"rxjs": "^5.1.0",
"ts-helpers": "^1.1.2",
"zone.js": "^0.8.4"},
"devDependencies": {
"@angular/cli": "1.0.0",
"@angular/compiler-cli": "^4.0.0",
"@types/jasmine": "2.5.38",
"@types/node": "~6.0.60",
"angular2-template-loader": "^0.6.2",
"awesome-typescript-loader": "^3.1.2",
"codelyzer": "~2.0.0",
"css-to-string-loader": "^0.1.2",
"exports-loader": "^0.6.4",
"extract-text-webpack-plugin": "^2.1.0",
"file-loader": "^0.11.1",
"html-loader": "^0.4.5",
"html-webpack-plugin": "^2.28.0",
"jasmine-core": "~2.5.2",
"jasmine-spec-reporter": "~3.2.0",
"karma": "~1.4.1",
"karma-chrome-launcher": "~2.0.0",
"karma-cli": "~1.0.1",
"karma-coverage-istanbul-reporter": "^0.2.0",
"karma-jasmine": "~1.1.0",
"karma-jasmine-html-reporter": "^0.2.2",
"karma-remap-istanbul": "^0.6.0",
"protractor": "~5.1.0",
"raw-loader": "^0.5.1",
"resolve-url-loader": "^2.0.2",
"rimraf": "^2.6.1",
"sass-loader": "^6.0.3",
"style-loader": "^0.16.1",
"to-string-loader": "^1.1.5",
"ts-node": "~2.0.0",
"tslint": "~4.5.0",
"typescript": "~2.2.0",
"webpack": "^2.3.3",
"webpack-dev-server": "^2.4.2",
"webpack-merge": "^4.1.0",
"xml2js": "^0.4.17"}
}