September 6, 2008 02:23pm pdt

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	[x] Attachment Details

checkbox.checked always false in grid view's user control

Zones: Microsoft Visual C#.Net, Visual Studio .NET 2005, WebApplications

Tags: C#

I am using a web user control in C# with a grid view inside it.
In the grid view I have a template field with a checkbox inside. The user can select one or more itens from the grid.

I would like to put a button outside the user control and, when the button is clicked, a method in the user control should return an arry with the selected lines... However, the button may be doing some kind of postback and when the method is called the checkbox.checked attribute is always set false.

What am I doing wrong? The button that calls the selected items is outside the web user control. Does it affect the functions in it?

Regards,

Paulo Henrique

         
           
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             // Here is the grid view of the web user control:
 
<asp:GridView ID="gvEquipamentos" runat="server" AllowPaging="True" AutoGenerateColumns="False"
    CellPadding="4" CssClass="gradeviewclass" DataKeyNames="Serial" ForeColor="White"
    GridLines="Horizontal" AllowSorting="True">
    <Columns>
        <asp:TemplateField>
            <ItemTemplate>
                <asp:CheckBox ID="chk_serial"  runat="server" ToolTip="Selecionar" AutoPostBack="true" OnCheckedChanged="chk_serial_CheckedChanged" />
            </ItemTemplate>
        </asp:TemplateField>
        <asp:BoundField DataField="Serial" HeaderText="Serial" />
    </Columns>
</asp:GridView>
 
//and the function that should give me back an array with the selected lines:
 
    public ArrayList pegaSeriaisSelecionados() {
        ArrayList seriais = new ArrayList();
        try {
            foreach(GridViewRow row in gvEquipamentos.Rows){
                CheckBox chk = (CheckBox)row.FindControl("chk_serial");
                // this chk.checked comes always false to me!!! =(
                if (chk != null && chk.Checked) {
                    seriais.Add( gvEquipamentos.DataKeys[row.RowIndex]["Serial"]);
                }
            }
        } catch (Exception ex) {
            throw ex;
        }
        return seriais;
    }

           
         

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Question Stats

Zone: Programming

Question Asked By: znotte

Solution Provided By: znotte

Participating Experts: 1

Solution Grade: A

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