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POFilter GridView depending on userid
 

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  1. POFilter GridView depending on userid
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    <p>I have a <code>GridView</code> which I am binding using a <code>LinqDataSource</code>. I want to filter the <code>GridView</code> based on the value of the userid (which is stored in a <code>Session</code>). I also have a <code>Session</code> for determining if the user is an admin.</p> <ol> <li>If only user - Filter <code>GridView</code> to user_id(column) == Session["userid"]</li> <li>If admin - Show all user_ids.</li> </ol> <p>I've managed to filter it in numerous ways for the user but not how to later display everything for the admin (admin has the user_id = 1).</p> <p>Does somebody have any idea?</p> <p>Here is my aspx:</p> <pre><code>&lt;asp:GridView ID="GridView1" runat="server" CausesValidation="False" GridLines="None" AllowPaging="True" CssClass="mGrid" PagerStyle-CssClass="pgr" AlternatingRowStyle-CssClass="alt" AutoGenerateColumns="False" DataSourceID="LinqDataSource2" DataKeyNames="event_id"&gt; &lt;AlternatingRowStyle CssClass="alt"&gt;&lt;/AlternatingRowStyle&gt; &lt;Columns&gt; &lt;asp:CommandField ShowDeleteButton="True" ShowEditButton="True" /&gt; &lt;asp:BoundField DataField="event_id" HeaderText="event_id" ReadOnly="True" SortExpression="event_id" InsertVisible="False" /&gt; &lt;asp:BoundField DataField="title" HeaderText="title" SortExpression="title" /&gt; &lt;asp:BoundField DataField="description" HeaderText="description" SortExpression="description" /&gt; &lt;asp:BoundField DataField="event_start" HeaderText="event_start" SortExpression="event_start" /&gt; &lt;asp:BoundField DataField="event_end" HeaderText="event_end" SortExpression="event_end" /&gt; &lt;asp:BoundField DataField="user_id" HeaderText="user_id" SortExpression="user_id" /&gt; &lt;/Columns&gt; &lt;PagerStyle CssClass="pgr"&gt;&lt;/PagerStyle&gt; &lt;/asp:GridView&gt; &lt;asp:LinqDataSource ID="LinqDataSource2" runat="server" ContextTypeName="DataClassesDataContext" EntityTypeName="" TableName="calevents" EnableDelete="True" EnableInsert="True" EnableUpdate="True" Where="user_id = @user_id"&gt; &lt;/asp:LinqDataSource&gt; </code></pre> <p>Some of the things I've tried (Manual databinding):</p> <pre><code> // Registered users may only edit their own events DataClassesDataContext dc = new DataClassesDataContext(); var events = from a in dc.calevents where a.user_id == userId() select a; GridView1.DataSource = events; GridView1.DataBind(); </code></pre> <p>or following, which makes me have to override the edit, cancel and update methods.</p> <pre><code>// Registered users may only edit their own events protected void GridView1_DataBound(object sender, EventArgs e) { if (Session["admin"] != "admin") { for (int i = 0; i &lt; GridView1.Rows.Count; i++) { for (int j = 0; j &lt; GridView1.Columns.Count; j++) { if (GridView1.Rows[i].Cells[j].Text != userId().ToString()) { GridView1.Rows[i].Visible = false; Label1.Text = GridView1.Rows.Count.ToString(); } else GridView1.Rows[i].Visible = true; } } } } </code></pre>
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