Should I store the database ID field in the ViewState?

Question

I need to get a record from the database, display it on a web page (I use ASP.NET), but somewhere I need to save the identifier (primary key) from this record in order to return this identifier to the database later (possibly for updating) .

I know that there may be several ways to do this, such as storing an identifier in a ViewState or a hidden field, but what is the best method and what are the reasons why I can choose this method for any others?

Answer 1

It depends.

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<pages enableViewState="true" enableViewStateMac="true" />
<machineKey ... validation="3DES" />

Answer 2

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public int CustomerID {
    get { return ViewState("CustomerID"); }
    set { ViewState("CustomerID") = value; }
}

    Public Property CustomerID() As Integer
        Get
            Return ViewState("CustomerID")
        End Get
        Set(ByVal value As Integer)
            ViewState("CustomerID") = value
        End Set
    End Property

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Answer 3

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Answer 4

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Answer 5

querystring, , .

Answer 6

Session["MyId"]=myval;

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Answer 7

,

 <asp:label runat=server id=lblThingID visible=false />