在Windows Orm的网格视图中显示数据 [英] showthe data in grid view for windows orm

问题描述

嗨 我正在尝试在Windows窗体的gridview中显示数据
为此，我编写了代码
如下

  Dim  conn  As  新 SqlClient.SqlConnection("  )
    conn.Open()
     Dim  cmd  As  新建 SqlCommand(" ，conn)
    cmd.CommandType = CommandType.StoredProcedure
     Dim  dr  As  SqlDataReader = cmd.ExecuteReader()
     Dim  ds  As  新建 DataSet()
     Dim  dt  As   New  DataTable(" )

    ds.Tables.Add(dt)
    ds.Load(dr，LoadOption.PreserveChanges，ds.Tables( 0 ))
    dgvClass.DataSource = ds.Tables( 0 )
    Dr.Close()
    conn.Close()

其中tgvClass是gridView名称

这段代码没有显示错误，也不会在网格视图中显示数据
请从这个
帮助我
谢谢和问候
subiya

解决方案

您需要调用gridview的databind方法来显示数据.

希望本文将对此进行介绍.解释一些有关Windows窗体和数据绑定的有趣观点:
C#2.0中的BindingSource和BindingNavigator [Dim conn As New SqlClient.SqlConnection("Server=localhost;DataBase=cbse;Integrated Security=SSPI") conn.Open() Dim cmd As New SqlCommand("spClassSelect", conn) cmd.CommandType = CommandType.StoredProcedure Dim dr As SqlDataReader = cmd.ExecuteReader() Dim ds As New DataSet() Dim dt As New DataTable("tblClass") ds.Tables.Add(dt) ds.Load(dr, LoadOption.PreserveChanges, ds.Tables(0)) dgvClass.DataSource = ds.Tables(0) dr.Close() conn.Close()

where tgvClass is the gridView name

this code shows no error bt not showing data in the grid view as well
please help me out from this

thanks and regard
subiya

解决方案

You need to call the databind method of the gridview for it to show the data.

Hopefully this article will explain a few interesting points about Windows Forms and databinding:
BindingSource and BindingNavigator in C# 2.0[^].

It''s usually a good idea to use BindingSource when you are working with Windows Forms :)

Christians solution works very well when you are working with ASP.NET ...

Best regards
Espen Harlinn

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