面对错误都DataSource和与DataSourceID的是在GridView的实体框架定义 [英] Facing error both DataSource and And DataSourceID are defined on GridView Entity Framework

问题描述

我使用实体框架的工作，并要绑定的网格视图的数据，但面临的问题，我有code是我和粘贴以及附加的屏幕快照我也看到了回答关于这个问题，但不利于我，所以任何人不得不与此错误的经验一定是AP preciated。

aspx.cs code

 保护无效的Page_Load（对象发件人，EventArgs的发送）
    {
        如果（！的IsPostBack）
        {
            BindGrid（）;
        }
        lblMessage.Text =;
    }    无效BindGrid（）
    {
        使用（GapEntities1上下文=新GapEntities1（））
        {
            如果（context.Organizations.Count（）大于0）
            {
                // GdvOrganization是一个gridview ID名称
                GdvOrganization.DataSource = context.Organizations;
                GdvOrganization.DataBind（）;
            }
        }
    }
 

解决方案

好像你正试图在GridView从标记侧（的.aspx）以及使用code背后绑定。（.aspx.cs）

选择任何一种方式只对电网进行绑定。

1）。如果你从code绑定gridview的背后然后取出从标记网格视图的DataSourceID 属性。低于code改变：

 ＆LT; ASP：GridView控件ID =GdvOrganization=服务器的AutoGenerateColumns =FALSE
的DataSourceID =MyDataSource＆GT;
 

到

 ＆LT; ASP：GridView控件ID =GdvOrganization=服务器的AutoGenerateColumns =FALSE＆GT;
 

2）。如果你preFER从侧面标记绑定，那么你必须删除C＃code到网格绑定。

不过，如果上述两个步骤你不感兴趣，试试下面的技巧（推荐？）

  GdvOrganization.DataSource = DS;
GdvOrganization.DataSourceID =的String.Empty;
GdvOrganization.DataBind（）;
 

i am using entity frame work and want to bind data on Grid View but facing problem i have code that i am pasting as well as attaching screen shot i also saw answer regarding this problem but not beneficial for me so any one have experience with this error must be appreciated.

aspx.cs Code

protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            BindGrid();
        }
        lblMessage.Text = "";
    }

    void BindGrid()
    {
        using (GapEntities1 context = new GapEntities1())
        {
            if (context.Organizations.Count() > 0)
            {
                // GdvOrganization is a gridview ID name
                GdvOrganization.DataSource = context.Organizations;
                GdvOrganization.DataBind();
            }
        }
    }

解决方案

Seems like you are trying to bind the GridView from Markup side (.aspx ) as well as using code behind.( .aspx.cs )

Choose any one way only to bind the grid.

1.) If you bind gridview from code behind then remove the DataSourceId property from grid view from markup. Change below code:

<asp:gridview id="GdvOrganization" runat="server" autogeneratecolumns="False" 
DataSourceID="MyDataSource">

to

<asp:gridview id="GdvOrganization" runat="server" autogeneratecolumns="False">

2.) if you prefer to bind from markup side then you have to remove the c# code to bind the grid.

Still if above 2 steps doesn't interest you, try below trick ( Recommended ?? )

GdvOrganization.DataSource = ds;
GdvOrganization.DataSourceID = String.Empty;
GdvOrganization.DataBind();

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