How to access an Image within a DetailsView? RSS

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  h.levy

  Member

  2 Points

  12 Posts

  How to access an Image within a DetailsView?

  Dec 22, 2012 07:20 PM|LINK

  Hi,

  I have this code:

  <asp:DetailsView ID="DetailsView1" DataKeyNames="PB_ID" runat="server" Height="50px" Width="560px" AutoGenerateRows="False"
              BackColor="White" BorderColor="Black" BorderStyle=Solid  BorderWidth="1px" CellPadding="3" DataSourceID="SqlDataSource1" GridLines="Horizontal" >
              <Fields>
                  <asp:TemplateField HeaderText="Hello World" HeaderStyle-Width="190" HeaderStyle-Font-Bold="true" ControlStyle-Width="222" >
                      <ItemTemplate>
                          <asp:Label ID="Label3" runat="server" Text='<%# Bind("Colum1") %>'></asp:Label>
                              <div style="display:<%#IIF(ISDBNULL(Eval("Img_Name")), "none", "block")%>">
                                 <asp:Image ID="Image2" ImageUrl='<%# DataBinder.Eval(Container, "DataItem.Img_Name")%>' runat="server" />
                              </div>
                              <div style="display:<%#IIF(ISDBNULL(Eval("Img_Name")), "block", "none")%>">
                                 <asp:Image ID="Image1" ImageUrl="~/Images/imgnotfound.jpg" runat="server" Width="100" />
                              </div>
                      </ItemTemplate>
                 </asp:TemplateField>
              </Fields>
          </asp:DetailsView>

  and I want to change "Image2" through .VB (Image2.ImageUrl = "Something else.jpg").
  The problem is that the compiler cannot find the variable.
  (Page.FindControl(String) is not working either).

  Someone can help me out?
  
  

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  Kulrom

  Contributor

  4820 Points

  891 Posts

  Re: How to access an Image within a DetailsView?

  Dec 22, 2012 07:30 PM|LINK

  From what event you want to do that? Load, Binding etc.? It differs a lot you know

  Remember to click Mark As Answer when you get a reply which answers your question.
  My Blog: ASP.NET Stuff
  
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  h.levy

  Member

  2 Points

  12 Posts

  Re: How to access an Image within a DetailsView?

  Dec 22, 2012 07:33 PM|LINK

  I want to do it from .vb functions.

  From "Page Load" and few buttons.

• • Reply
  

  Madhu1234

  Participant

  1380 Points

  287 Posts

  Re: How to access an Image within a DetailsView?

  Dec 22, 2012 08:40 PM|LINK

  For each row that you want to access the Image2 properties you will have to:

  Image img = (Image)row.FindControl("Image2");

  if(img != null)
  {
  Image.url = some url;
  Image.AlternateText = "Alternate text";
  }

  You could add this logic to the row created event so that when you are binding the gridview each row is evaluated.

  Check this below..

  protected void grdACMList_RowCreated(object sender, GridViewRowEventArgs e)
  {
  
  if (e.Row.RowType == DataControlRowType.DataRow)
  {
  // Retrieve the Image control from the first column.
  Image img = (Image)e.Row.Cells[1].Controls[0];
  
  //Rest is you logic..
  }
  }

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  oned_gk

  All-Star

  31055 Points

  6356 Posts

  Re: How to access an Image within a DetailsView?

  Dec 22, 2012 10:13 PM|LINK

  use DetailsView1.findcontrol in view mode
  Programming to simplify, dont look for hard way
  • Edited by h.levy on Dec 23, 2012 06:26 AM
  • Edited by decker dong - msft on Dec 28, 2012 12:42 AM
  • Marked as answer by decker dong - msft on Dec 28, 2012 12:42 AM
• • Reply
  

  h.levy

  Member

  2 Points

  12 Posts

  Re: How to access an Image within a DetailsView?

  Dec 23, 2012 06:26 AM|LINK

  oned_gk,

  I cant believe its so simple.
  Thanks!