Facing error both DataSource and And DataSourceID are defined on GridView Entity Framework

Question

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.

enter image description here

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();
            }
        }
    }

R.C R.C · Accepted Answer · 2014-03-07T11:24:10

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();

Facing error both DataSource and And DataSourceID are defined on GridView Entity Framework

1 Answers