assign a value from a foreach loop to an asp:button CommandArgument

Question

The code behind file creates a list of employees and the asp.net page loops through list. Now, How do I assign the employeedID to the commandArgument of an asp:button?

  <%foreach(var employee in employeesList){%>
    <tr>
     <td><%=employee.firstName%></td>
     <td><%=employee.lastName%></td>
    /*How to access employee.Id in the commandArgument? */
    <td><asp:Button ID="btnDeleteEmployee" runat="server" CommandArgument=''    Text="Delete" OnCommand="btnDeleteEmployee_Click" /></td>
    </tr>
<%}%>

Is this MVC code or WebForms?

pmarflee
– pmarflee

2009-11-02 01:07:07 +00:00
Commented Nov 2, 2009 at 1:07 — pmarflee
– pmarflee, Commented Nov 2, 2009 at 1:07
It's webforms.Please see my comment for Aaron's answer.

krishna
– krishna

2009-11-02 01:12:48 +00:00
Commented Nov 2, 2009 at 1:12 — krishna
– krishna, Commented Nov 2, 2009 at 1:12

rick schott · Accepted Answer · 2009-11-02 12:38:46Z

7

Based on your comments, here is a nested example:

Markup:

<asp:Repeater runat="server" ID="rptOutter" 
    onitemdatabound="rptOutter_ItemDataBound" >
    <ItemTemplate>
        <tr>
            <td><%#Eval("firstName") %></td>
            <td><%#Eval("lastName") %></td>
            <td><asp:Button runat="server" ID="btnDeleteEmployee" CommandArgument='<%#Eval("Id") %>' Text="Delete" OnCommand="btnDeleteEmployee_Click"  /></td>
            <td>
                <asp:Repeater runat="server" ID="rptInner" >
                    <ItemTemplate>
                        <table>                                
                            <tr>
                                <td><%#Eval("firstNameInner") %></td>
                                <td><%#Eval("lastNameInner") %></td>
                            </tr>
                        </table>
                    </ItemTemplate>
                </asp:Repeater>

            </td>
        </tr>
    </ItemTemplate>
</asp:Repeater>

CodeBehind:

protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
    {
        rptOutter.DataSource = outterDataSource;
        rptOutter.DataBind();
    }

}

protected void rptOutter_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
    RepeaterItem item = e.Item;
    if ((item.ItemType == ListItemType.Item) ||
        (item.ItemType == ListItemType.AlternatingItem))
    {
        //get your datasource from parent repeater if needed
        //cast to your datasource type
        //DataSourceObject ds = (DataSourceObject)item.DataItem;
        Repeater r = e.Item.FindControl("rptInner") as Repeater;
        if (r != null)
        {
            r.DataSource = innerDataSource;
            r.DataBind();
        }
    }

}

edited Nov 2, 2009 at 12:38

answered Nov 2, 2009 at 1:26

rick schott

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2 Comments

Aaron Over a year ago

Glad I saw this before posting almost exactly the same thing!

krishna Over a year ago

Thank you Rick. That worked.copy/paste issue in the code.Should be: if(r!=null){ r.DataSource = innerDataSource; r.DataBind(); }

Aaron · Accepted Answer · 2009-11-02 01:05:38Z

3

<asp:Repeater runat="server" ID="rptEmployeeList">
    <ItemTemplate>
        <tr>
            <td><%#Eval("firstName") %></td>
            <td><%#Eval("lastName") %></td>
            <td><asp:Button runat="server" ID="btnDeleteEmployee" CommandArgument='<%#Eval("Id") %>' Text="Delete" OnCommand="btnDeleteEmployee_Click"  /></td>
        </tr>
    </ItemTemplate>
</asp:Repeater>

and then in the codebehind

if (!Page.IsPostBack)
{
    rptEmployeeList.DataSource = employeeList;
    rptEmployeeList.DataBind();
}

answered Nov 2, 2009 at 1:05

Aaron

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2 Comments

krishna Over a year ago

Is it possible using the foreach loop, because in this case , I need a nested for loop to go through the projects that the employee is working on (an example). Or alternately, Can I have a nested asp:Repeater ?

Aaron Over a year ago

_rick_schott has a nested example

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