'system.data.dataview.dataview（system.data.datatable）'的最佳重载方法匹配有一些无效的参数 [英] The best overloaded method match for 'system.data.dataview.dataview(system.data.datatable)' has some invalid arguments

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.

这篇关于'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IT屋！