Cannot Access Button in ListView RSS

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  bangtheory

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  52 Points

  58 Posts

  Cannot Access Button in ListView

  Dec 06, 2012 10:21 PM|LINK

  I have a ListView and I stashed a custom button inside of it.  I have it's current view state set to false.  I want it show based on a session variable.

  Here is the front-end

  <ItemTemplate>
       <div class="product-image"><asp:Image ID="Thumbimage" runat="server" ImageUrl='<%# Eval("ThumbImage") %>' /></div><!-- end product-image -->
       <div class="product-info">
            <ul>
                 <li class="product-title">
                      <asp:Label ID="ManufacturerLabel" runat="server" Text='<%# Eval("Manufacturer") %>' /></li>
                 <li class="product-desc">
                      <asp:Label ID="TitleLabel" runat="server" Text='<%# Eval("Title") %>' /></li>
                 <li style="font-weight:bold;" class="font13 green">
                      <asp:Label ID="PriceLabel" runat="server" Text='<%# Eval("Price", "{0:c}") %>' /></li>
                 <li class="product-price"><asp:Label ID="SaleLabel" runat="server" Text='<%# Eval("SalePrice", "{0:c}") %>' /></li>
                 <li class="btn-container">
                      <asp:Button ID="ViewButton" runat="server" CssClass="btn"  Text="View Item" CommandName="Select" OnClick="HideDataPager" />
    <!-- this is the button I am trying to access --><asp:Button ID="EditButton" runat="server" CssClass="btn" Visible="false"  Text="Edit Items" onclick="EditButton_Click"/>
                              </li>
                          </ul>
                      </div><!-- end product-info -->

  
  I tried to do this in the code behind.  This didn't work

  Button editBtn = (Button)MowerList.FindControl("EditButton");
  editBtn.Visible = true;

  
  
  

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  kyk_nk

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  2 Points

  1 Post

  Re: Cannot Access Button in ListView

  Dec 07, 2012 01:15 AM|LINK

  Hi 

  Please try to use ItemCreated event and ListViewItemEventArgs.

  Here is some code: (sorry its VB.NET)

  Protected Sub MowerList_ItemCreated(sender As Object, e As ListViewItemEventArgs) Handles MowerList.ItemCreated
  
          If e.Item.ItemType = ListViewItemType.DataItem Then
              Dim btn = DirectCast(e.Item.FindControl("EditButton"), Button)
              btn.Visible = True
          End If
  
      End Sub

  
  
  

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  bangtheory

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  52 Points

  58 Posts

  Re: Cannot Access Button in ListView

  Dec 07, 2012 02:48 AM|LINK

  uuh... yeah I don't know what that translates into for C#

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  Decker Dong ...

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  18779 Posts

  Re: Cannot Access Button in ListView

  Dec 07, 2012 07:30 AM|LINK

  bangtheory

  uuh... yeah I don't know what that translates into for C#

  protected void MowerList_ItemCreated(object sender, ListViewItemEventArgs e)
  {
  	if (e.Item.ItemType == ListViewItemType.DataItem) {
  		dynamic btn = (Button)e.Item.FindControl("EditButton");
  		btn.Visible = true;
  	}
  
  }

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  bangtheory

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  52 Points

  58 Posts

  Re: Cannot Access Button in ListView

  Dec 07, 2012 12:22 PM|LINK

  Thank you Decker Dong, how would I go about applying this function to a page_load event?  What is happening is, if the user has an administrator session variable, to show this EditButton in the ListView.  Here, you have this buttong being defined when the ListView is created.

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  bangtheory

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  52 Points

  58 Posts

  Re: Cannot Access Button in ListView

  Dec 07, 2012 12:29 PM|LINK

  This is not working.

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  Decker Dong ...

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  Re: Cannot Access Button in ListView

  Dec 08, 2012 01:22 AM|LINK

  bangtheory

  Thank you Decker Dong, how would I go about applying this function to a page_load event?  What is happening is, if the user has an administrator session variable, to show this EditButton in the ListView.  Here, you have this buttong being defined when the ListView is created.

  Hello,

  As far as I see, I think you can just check whether the session is null or not (suppose this means whether you've successfully logged in or not), And handle the event of ItemEditing if you wanna control whether the Edit button is visible for you or not.

  void ProductsListView_ItemEditing(Object sender, ListViewEditEventArgs e)
    {
         Button btn = (Button)YourListItem.Items[e.NewEditIndex].FindControl("EditButton");
         btn.Visible = Session["loggin"]!=null;
    }

  • Marked as answer by decker dong - msft on Dec 12, 2012 09:30 AM