loop throught Repeater

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ASP.NET

i am reading 2nd and column value(label) of a repeater control and change
the text property against the data which is bind to that label,but repeater foreach loop
cannot read the last row always last row is avoided by control for manipulation
here is the code

on itemdatabound method

if ((e.Item.ItemType == ListItemType.Item) || (e.Item.ItemType == ListItemType.AlternatingItem))
{
    foreach (RepeaterItem item in rptTask.Items)
    //for (int i = 0; i < rptTask.Items.Count; i++)
    {        
        Label lblGroupAssign = (Label)item.FindControl("lblASSIGNTOGROUP");
        Label lblExeAssign = (Label)item.FindControl("lblUSERNAME");
        Button BtnDownload = (Button)item.FindControl("lnkDownload");

        string grupassign = string.Empty;
        string exeassign = string.Empty;
        grupassign = lblGroupAssign.Text;
        exeassign = lblExeAssign.Text;

        if (grupassign == "0")
        {
            grupassign = "TDM";
            exeassign = "Not Assigned";
            //lblGroupAssign.Text = "TDM";
            //lblExeAssign.Text = "Not Assigned";
        }
        else if (grupassign == "1")
        {
            grupassign = "TE";
            //lblGroupAssign.Text = "TE";
        }
        string filename = BtnDownload.CommandArgument;
        if (filename != "0")
        {
            BtnDownload.Enabled = true;
        }
        else if (filename == "0")
        {
            BtnDownload.Enabled = false;
        }
        lblGroupAssign.Text = grupassign;
        lblExeAssign.Text = exeassign;
    }
}

i tried all the options but last row is not changing

here is the snap shot of a issue
1st one is grid and its working proper in grid n below that deir is a repeater
n its not working
Snap Shot[^]