本文介绍了System.NotImplementedException on一个简单的Linq查询和绑定源更新的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧! 问题描述 大家好, 非常简单的问题我确定。运行一个简单的linq查询,然后从中更新绑定源的数据源属性Really simple question I'm sure. Running a simple linq query then updating a binding source's datasource property from it 代码片段 推荐答案 你对这个问题有什么答案吗?Did you get any answer to this question?我的问题完全相同。 我已经下载了Visual C#2008 Express Edition SP1,可在Microsoft网站上找到,注册并获得了"立即构建程序"一书!用例子。 I've downloaded Visual C# 2008 Express Edition with SP1, available on the Microsoft website, registered and got the book Build a Program Now! with the examples. 我在本书中构建了Car Tracker应用程序,但部分I built the Car Tracker application in this book, but the part 私人 void tsbFilterByMake_Click( object sender, EventArgs e)private void tsbFilterByMake_Click(object sender, EventArgs e) { var filterByMake = from 列出 in this .carTrackerDataSet.Listing var filterByMake = from Listing in this.carTrackerDataSet.Listing join in this .carTrackerDataSet.Make join Make in this.carTrackerDataSet.Make on Listing.Make ID equals Make.MakeID on Listing.MakeID equals Make.MakeID 其中 (Make.MakeName.ToLower()。包含(tstbFilterByMake.Text.ToLower()))where (Make.MakeName.ToLower().Contains(tstbFilterByMake.Text.ToLower())) 选择 列出; select Listing; this .listingBindingSource.DataSource = filterByMake; this.listingBindingSource.DataSource = filterByMake; } 在sends me a System.NotImplementedException when it runs on the 此 .listingBindingSource.DataSource = filterByMake; this.listingBindingSource.DataSource = filterByMake;行。从Microsoft网站下载的代码也会发生这种情况。 line. This happens also with the code downloaded from the Microsoft website. 谢谢, 这篇关于System.NotImplementedException on一个简单的Linq查询和绑定源更新的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持! 09-23 20:52