'system.data.dataview.dataview（system.data.datatable）'的最佳重载方法匹配有一些无效的参数

本文介绍了'system.data.dataview.dataview（system.data.datatable）'的最佳重载方法匹配有一些无效的参数的处理方法，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

当我尝试按列对网格视图进行排序时 i使用排序方法进行排序但显示错误任何人都可以帮助我帮助 我尝试过：

As I am trying to sort the grid view by column i have used sorting method to sort but shows error can anyone help help me What I have tried:

public SortDirection dir { get { if (ViewState["dirstate"] == null) { ViewState["dirstate"] = SortDirection.Ascending; } return (SortDirection)ViewState["dirstate"]; } set { ViewState["dirstate"] = value; } } protected void gvDetails_Sorting(object sender, GridViewSortEventArgs e) { string sortingDirection = string.Empty; if (dir == SortDirection.Ascending) { dir = SortDirection.Descending; sortingDirection = "Desc"; } else { dir = SortDirection.Ascending; sortingDirection = "Asc"; } DataView sortedView = new DataView(dt.gridview()); sortedView.Sort = e.SortExpression + " " + sortingDirection; gvDetails.DataSource = sortedView; gvDetails.DataBind(); }

推荐答案

错误消息说DataView构造函数没有接受的重载版本一个参数，它是一个GridView类实例 它有重载，不接受任何参数，DataTable，或DataTable和一些过滤器信息： DataView类（System.Data） [ ^ ]但它无法接受GridView。 可能你想传递DataTable dt ，但这是你的应用，不是我的，我不能确定。 The error message is saying "The DataView constructor does not have an overloaded version which accepts a single parameter which is a GridView class instance" It has overloads which accept no parameters, a DataTable, or a DataTable and some filter info: DataView Class (System.Data)[^] but it can't accept a GridView. Probably, you want to pass the DataTable dt, but it's your app, not mine and I can't be sure.