Cross Page Postback and Datagrid.

[Jason]

On a Datagrid defined as
<asp:datagrid id="dgCountries" width="100%" AutoGenerateColumns="False"
Runat="server" CellSpacing="1" BorderWidth="0px" CellPadding="2"
DataKeyField="code">
<Columns>
<asp:BoundColumn DataField="Code"
HeaderText="Code"></asp:BoundColumn>
<asp:TemplateColumn>
<ItemTemplate>
<asp:HyperLink ID="HyperLink1" runat="server"
NavigateUrl='<%# DataBinder.Eval(Container, "DataItem.Code",
"somepage.aspx?countryid={0}") %>'>
<img id="StateImage" runat="server"
src="~/APP_Themes/buttons/Regions.gif" border=0 />
</asp:HyperLink>
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
</asp:datagrid>

the hyperlink provides the row clicked via the Query string. We are getting
rid of the querry string and I need to implement this via CrossPagePostback.
So far I can not figure out how to access which row was selected before it
was passed on the querystring. I am able to access the grid but from there I
am stuck.

the hyperlink above will be changed to something like
<asp:Button Runat=server PostbackUrl="somepage" Id="somecontrol">

Any help would be really appreciated.

 

[Toze]

if i understand your problem
you could use a hidden field a javascript function that is called
when you click the hyperlink to set the value of the hidden field with the
value you want

something like

javascript

function setValue(value)
{
var hidden = document.getElementById('<%=hiddenField1.ClientId%>');
hidden.value = value;
}

code-behind
void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

{

if (e.Row.RowType == DataControlRowType.DataRow)

{

Button bt = (Button)e.Row.FindControl("button1");

bt.Attributes.Add("onclick", "setValue(' " + e.Row.RowIndex (or any
value you want to persist + "')");


}

}

 

[Jason]

Thank you for your input.

Is there a simply way to be doing this. I am new to the CrossPagePostback
and want to make sure I am not overlooking something

 

[Toze]

well i normally dont use CrossPagePostback ...but that's me
i perfer to user userControls and control myself the data using viewstate
my idea is that full postback of one page on another is something to avoid

sorry my bad english