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How to post back text box with image as button 1

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bernie321

bernie321

Programmer
Jan 7, 2004
477
GB
Hi

We have a repeater that lists our stock, users can then enter the quantity in a text box and click an image which is the add to cart button.

I have two problems:

1 - how do I use an image to post the item
2 - how do I know the name of the correct quantity textbox (as there are many created for each record by the repeater)

Any advice would be much appreciated.

Thanks
B
 
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Hi

Thanks for your post & sorry for the delay in getting back to you, i have my image button in the repeater but am unable to catch the event:

<asp:Repeater ID="objRepeater" runat="server" OnItemCommand="objRepeater_ItemCommand">
<ItemTemplate>
<asp:ImageButton id="imgDelete" CommandName="imgDelete_Click" runat="server" ImageUrl="delete.jpg"></asp:ImageButton>
</ItemTemplate>
</asp:Repeater>


Protected Sub objRepeater_ItemCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.RepeaterCommandEventArgs) Handles objRepeater.ItemCommand

If e.CommandName = "imgDelete_Click" Then

clsBasketClass.gsubRemoveFromCart(e.Item.ItemIndex)
End If

End Sub


Any help would be much appreciated

Thanks
B
 
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Have you stepped through the code and do you reach the line "clsBasketClass.gsubRemoveFromCart(e.Item.ItemIndex)" ? (I'm not asking if it exectues successfully right now)

:)
 
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Hi

Thanks for your post, and again sorry for the delay.

We have a breakpoint on clsBasket.... but it does not reach this.

Thanks
B
 
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Hi

Thanks for your post.

E is empty, there is no CommandName

Thanks
B
 
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So you are saying that the event actually fires correctly (i.e. when you put a breakpoint on the event it gets hit), but that e.CommandName is empty?


-------------------------------------------------------

Mark,
[URL unfurl="true"]http://aspnetlibrary.com[/url]
[URL unfurl="true"]http://mdssolutions.co.uk[/url] - Delivering professional ASP.NET solutions
[URL unfurl="true"]http://weblogs.asp.net/marksmith[/url]
 
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Sorry, no the breakpoint is in the page load for checking the e.commandname...

The event does not fire.
 
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Sorry, Again just to confirm:

I have two breakpoints:

One in the page load (which did break) - (this is the point at which I checked the e.commandarguement but realise this was incorrect as it would have a different value to in the event?)

One in the event (which did not fire)
 
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If the one in the event did not fire then it is not causing the command to be raised. Change the ImageButton to a regular Button and see if that causes the breakpoint to be hit (my guess is that it will).


-------------------------------------------------------

Mark,
[URL unfurl="true"]http://aspnetlibrary.com[/url]
[URL unfurl="true"]http://mdssolutions.co.uk[/url] - Delivering professional ASP.NET solutions
[URL unfurl="true"]http://weblogs.asp.net/marksmith[/url]
 
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Hi

I have replaced the image button with a regular button and again it did not fire.

Thanks
B
 
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It fires fine in my simple test:
Code: 
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default87.aspx.vb" Inherits="Default87" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "[URL unfurl="true"]http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">[/URL]

<html xmlns="[URL unfurl="true"]http://www.w3.org/1999/xhtml"[/URL] >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Repeater ID="objRepeater" runat="server">
           <ItemTemplate>   
              <asp:Button id="imgDelete" CommandName="imgDelete_Click" runat="server"></asp:Button>
           </ItemTemplate>
        </asp:Repeater>        
    </div>
    </form>
</body>
</html>
Code: 
Imports System.Data
Partial Class Default87
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If Not Page.IsPostBack Then
            objRepeater.DataSource = BindData()
            objRepeater.DataBind()
        End If
    End Sub

    Private Function BindData()
        Dim dt As New DataTable
        Dim dr As DataRow
        dt.Columns.Add("one")

        For i As Integer = 0 To 10
            dr = dt.NewRow
            dr(0) = i
            dt.Rows.Add(dr)
        Next

        Return dt
    End Function

    Protected Sub objRepeater_ItemCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.RepeaterCommandEventArgs) Handles objRepeater.ItemCommand
        Response.Write("I Fired")
    End Sub
End Class



-------------------------------------------------------

Mark,
[URL unfurl="true"]http://aspnetlibrary.com[/url]
[URL unfurl="true"]http://mdssolutions.co.uk[/url] - Delivering professional ASP.NET solutions
[URL unfurl="true"]http://weblogs.asp.net/marksmith[/url]
 
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Thank you for your post.

You will not believe my stupidity!!!

"If Not Page.IsPostBack Then"

I had left the databind in the postback code.

Thank you all for your help!!

B
 
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