"Steven Cheng[MSFT]" wrote:

>
> Hi Mike,
>
> Welcome to the ASPNET newsgroup.
>
> As for the adding script behavior on buttons in datagrid rows, are you
> developing the page through ASP.NET 1.x or the new ASP.NET 2.0?  I assume
> that you're using ASP.NET 1.x(Since datagrid is mostly replaced by GridView
> in 2.0).  For ASP.NET 1.x, if you want to do some customization on the sub
> controls(like a button) in datagrid row, I suggest you consider using
> TemplateColumn since this can allow us to do much customization. And to add
> client-side script behavior for a certain control in the templatecolumn,
> there exists serveral approachs:
>
> 1. directly embeded the script in template through databinding
> expression(if the embeded script is not too complex to handle in
> databinding expression. e.g:
>
> ===========================
> <asp:DataGrid id="dgGrid" runat="server" AutoGenerateColumns="False">
>                 <Columns>
>                     <asp:BoundColumn DataField="Text" HeaderText="Text"></asp:BoundColumn>
>                     <asp:BoundColumn DataField="Value"
> HeaderText="Value"></asp:BoundColumn>
>                     <asp:TemplateColumn HeaderText="Ops">
>                         <HeaderTemplate>
>                            
>                         </HeaderTemplate>
>                         <ItemTemplate>
>                             <INPUT type="button" value="Button" onclick='pop_up("<%#
> DataBinder.Eval(Container.DataItem,"Value") %>");'/>
>                         </ItemTemplate>
>                     </asp:TemplateColumn>
>                 </Columns>
>             </asp:DataGrid>
> ===============================
>
> =======code behind========
> private void Page_Load(object sender, System.EventArgs e)
>         {
>             // Put user code to initialize the page here
>             if(!IsPostBack)
>             {
>                 ListItemCollection items = new ListItemCollection();
>                 for(int i=0;i<10;i++)
>                 {
>                     items.Add("item_" + i);
>                 }
>
>                 dgGrid.DataSource = items;
>                 dgGrid.DataBind();
>             }
>         }
> ===========================
>
> In above code I bind the grid with a simple ListItemcollection. and use
> some databindig expression to add the script behavior for the html button
> element(let it open a modeless dialog display the certain show picture
> page, by passing the userid).
>
> 2. we can use the datagrid's ItemDataBound or ItemCreated event to
> programmatically locate sub controls from DataGrid Cell and do some
> customization on them. e.g:
>
>
> ================
> private void dgGrid_ItemCreated(object sender,
> System.Web.UI.WebControls.DataGridItemEventArgs e)
>         {
>             if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType ==
> ListItemType.AlternatingItem)
>             {
>                 TextBox txt = e.Item.Cells[0].FindControl("txtXXX") as TextBox;
>                 //......
>             }
>         }
> ====================
>
> I use the ItemCreated event to locate a textbox control I defined in the
> datagrid's column 0
>
>
> Hope this helps. If there's anything unclear, please feel free to let me
> know.
>
>
> Regards,
>
> Steven Cheng
> Microsoft Online Community Support
>
>
> ==================================================
>
> When responding to posts, please "Reply to Group" via your newsreader so
> that others may learn and benefit from your issue.
>
> ==================================================
>
>
> This posting is provided "AS IS" with no warranties, and confers no rights.
>
>
>
>
>
>
>

"Steven Cheng[MSFT]" wrote:

> Hi Mike,
>
> Thanks for your response.
>
> As for the "disabled" attribute, if we put it on the html element, that
> element will be disabled, it is not used as true/false pair. So you can try
> using the following code to make the element disabled conditionally:
>
> ============================
> <asp:TemplateColumn HeaderText="Ops">
>     <HeaderTemplate>
>     </HeaderTemplate>
>     <ItemTemplate>
>         <INPUT type="button" value="Button"
>         <%# HasImage(DataBinder.Eval(Container.DataItem,"Value")) %>
>         onclick='pop_up("<%# DataBinder.Eval(Container.DataItem,"Value") %>");'/>
>     </ItemTemplate>
> </asp:TemplateColumn>
> </Columns>
> </asp:DataGrid>
> =====================
>
> # "HasImage" is a custom helper function I defined in code behind(see below)
>
> ======code behind==========
> protected string HasImage(object obj)
>         {
>             string val = obj.ToString();
>            
>
>             if(val.IndexOf("3") > -1)
>             {
>                 return "disabled";
>             }
>
>             return string.Empty;
>         }
> ===================================
>
> Hope this also helps.
>
> Regards,
>
> Steven Cheng
> Microsoft Online Community Support
>
>
> ==================================================
>
> When responding to posts, please "Reply to Group" via your newsreader so
> that others may
>
> learn and benefit from your issue.
>
> ==================================================
>
>
> This posting is provided "AS IS" with no warranties, and confers no rights.
>
>