Index was out of range. Must be non-negative and less than the size of the collection

[muraliksl]

<asp:Panel ID="pnlScrolls" runat="server" ScrollBars="vertical" Height="600px"> 
                                        <asp:GridView ID="gvRegistList" ShowFooter="True" runat="server" 
                                                AutoGenerateColumns="False" 
                                            DataKeyNames="CPR_NO" BorderColor="#999999" RowStyle-BorderStyle="Solid" 
                                                Width="800px" AllowSorting="True" 
                                            RowStyle-BorderWidth="1px" Font-Names="Arial" Font-Size="Medium" 
                                                CellPadding="3" BackColor="White" BorderStyle="Solid" 
                                            BorderWidth="1px" GridLines="Vertical" PageSize="20" AllowPaging="True" 
                                                onpageindexchanging="gvRegistList_PageIndexChanging" 
                                            ForeColor="Black" en >
                                            <AlternatingRowStyle BackColor="#CCCCCC" />
                                            <Columns>
<%--                                               <asp:ButtonField CommandName="Select" Text="Button" HeaderText="CPR No."
                                                    DataTextField="CPR_NO" SortExpression="nUserID">
                                                    <ItemStyle CssClass="TDStyleLT" HorizontalAlign="Left" />
                                                    <HeaderStyle CssClass="THStyle " HorizontalAlign="Left" />
                                                </asp:ButtonField>
 
                                                <asp:boundfield datafield="name" headertext="Patient Name" readonly="true" />--%>
                                                <asp:TemplateField HeaderText="CPR No." >
                                                    <ItemTemplate>
                                                        <asp:Label ID="lblCpr" runat="server" Text='<%# Bind("CPR_NO") %>'></asp:Label>
                                                    </ItemTemplate>
                                                    <ItemStyle CssClass="TDStyleLT" HorizontalAlign="Left" />
                                                    <HeaderStyle CssClass="THStyle" HorizontalAlign="Left" />
                                                </asp:TemplateField>
 
                                                <asp:TemplateField HeaderText="NAME" >
                                                    <ItemTemplate>
                                                        <asp:Label ID="lblpatname" runat="server" Text='<%# Bind("NAME") %>'></asp:Label>
                                                        <%--<asp:Label ID="lblCpr" runat="server" Visible="false" Text='<%# Bind("CPR_NO") %>'></asp:Label>--%>
                                                    </ItemTemplate>
                                                    <ItemStyle CssClass="TDStyleLT" HorizontalAlign="Left" />
                                                    <HeaderStyle CssClass="THStyle" HorizontalAlign="Left" />
                                                </asp:TemplateField>
                                                <asp:TemplateField HeaderText="DATE" >
                                                    <ItemTemplate>
                                                        <asp:Label ID="lblDate" runat="server" Text='<%# Bind("DATE") %>'></asp:Label>
                                                    </ItemTemplate>
                                                    <ItemStyle CssClass="TDStyleLT" HorizontalAlign="Left" />
                                                    <HeaderStyle CssClass="THStyle" HorizontalAlign="Left" />
                                                </asp:TemplateField>
                                                <asp:TemplateField HeaderText="TIME" >
                                                    <ItemTemplate>
                                                        <asp:Label ID="lblTimeIn" runat="server" Text='<%# Bind("TIMEIN") %>'></asp:Label>
                                                        <%--<asp:Label ID="lblTimeIn" runat="server" Text='<%if # Bind("TIME") %>'></asp:Label>--%>
                                                        <%--<asp:Label ID="lbGender" runat="server" Text='<% if(#Eval("NTNAEVENT")='0' { 'Male' else 'Female' }%>'></asp:Label>--%>
                                                    </ItemTemplate>
                                                    <ItemStyle CssClass="TDStyleLT" HorizontalAlign="Left" />
                                                    <HeaderStyle CssClass="THStyle" HorizontalAlign="Left" />
                                                </asp:TemplateField>
                                                <asp:TemplateField HeaderText="NTNAEVENT" >
                                                    <ItemTemplate>
                                                        <asp:Label ID="lblTimeOut" runat="server" Text='<%# Bind("TIMEOUT") %>'></asp:Label>
                                                    </ItemTemplate>
                                                    <ItemStyle CssClass="TDStyleLT" HorizontalAlign="Left" />
                                                    <HeaderStyle CssClass="THStyle" HorizontalAlign="Left" />
                                                </asp:TemplateField>
 
                                            </Columns>
                                           <%-- <SelectedRowStyle BackColor="#008A8C" Font-Bold="True" ForeColor="White"/>--%>
                                            <RowStyle BorderColor="Black" BorderStyle="Solid" BorderWidth="1px" 
                                                Height="20px" />
                                            <PagerStyle HorizontalAlign="Center" BackColor="#999999" ForeColor="Black"  />
                                            <FooterStyle BackColor="#CCCCCC" />
                                            <HeaderStyle BorderColor="#404040" BorderStyle="Solid" BorderWidth="2px" 
                                                Wrap="True" BackColor="Black" Font-Bold="True" ForeColor="White" />
                                            <PagerSettings NextPageText="Next" PreviousPageText="Previous" Visible="true" />
                                            <SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" />
                                            <SortedAscendingCellStyle BackColor="#F1F1F1" />
                                            <SortedAscendingHeaderStyle BackColor="#808080" />
                                            <SortedDescendingCellStyle BackColor="#CAC9C9" />
                                            <SortedDescendingHeaderStyle BackColor="#383838" />
                                        </asp:GridView>
                                        </asp:Panel>
 
 
 
 protected void gvRegistList_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            //if(gvRegistList.PageIndex != null)
            //    {
            //    //Use
            gvRegistList.PageIndex = e.NewPageIndex;
            DataList();
            //    }
        }
 
 
public void DataList()
        {
            try
            {
                //Label lblCprNo = (Label)
                string strFDay, strFMonth, strFYear, strTDay, strTMonth, strTYear, strFDate, strTDate;
                strFDay = dtpFDate.SelectedDate.ToString().Substring(0, 2);
                strFMonth = dtpFDate.SelectedDate.ToString().Substring(3, 2);
                strFYear = dtpFDate.SelectedDate.ToString().Substring(6, 4);
                strFDate = strFYear + "-" + strFMonth + "-" + strFDay;
 
                strTDay = dtpTDate.SelectedDate.ToString().Substring(0, 2);
                strTMonth = dtpTDate.SelectedDate.ToString().Substring(3, 2);
                strTYear = dtpTDate.SelectedDate.ToString().Substring(6, 4);
                strTDate = strTYear + "-" + strTMonth + "-" + strTDay;
 
                DataTable dtSearch = new DataTable("TABLE");
 
                //dtSearch = attList.Attendance_List(dtpFDate.SelectedDate.ToString().Substring(0, 10), dtpTDate.SelectedDate.ToString().Substring(0, 10), txtCpr.Text.Trim());
                dtSearch = attList.Attendance_List(strFDate, strTDate, txtCpr.Text.Trim());
 
                if (dtSearch.Rows.Count > 0)
                {
                    //gvRegistList.Rows. = dtSearch.Rows.Count;
                    gvRegistList.DataSource = GetEmptyDataTableRegList(dtSearch.Rows.Count);
                    gvRegistList.DataBind();
                    lblMsg.Text = "";
                    for (int iCurow = 0; iCurow <= dtSearch.Rows.Count - 1; iCurow++)
                    {
                        if (dtSearch.Rows[iCurow]["DATE"].ToString().Trim() != InDate.ToString().Trim())
                        {
                            //string DataId = gvRegistList.Rows[this.gvRegistList.SelectedRows[0].Index].Cells["CPR_NO"].Value.ToString();
 
                            //((Label)gvRegistList.Rows[iCurow].FindControl("lblCpr")).Text = (Convert.IsDBNull(dtSearch.Rows[iCurow]["CPR_NO"]) ? "" : dtSearch.Rows[iCurow]["CPR_NO"].ToString());
                            //((Label)gvRegistList.Rows[iCurow].FindControl("lblpatname")).Text = (Convert.IsDBNull(dtSearch.Rows[iCurow]["NAME"]) ? "" : dtSearch.Rows[iCurow]["NAME"].ToString());
                            //((Label)gvRegistList.Rows[iCurow].FindControl("lblDate")).Text = (Convert.IsDBNull(dtSearch.Rows[iCurow]["DATE"]) ? "" : dtSearch.Rows[iCurow]["DATE"].ToString());
                            PrevTmIn = "";
                            PrevTmOut = "";
                            for (int jCurow = iCurow; jCurow < dtSearch.Rows.Count - 1 && dtSearch.Rows[iCurow]["DATE"].ToString().Trim() == dtSearch.Rows[jCurow]["DATE"].ToString().Trim(); jCurow++)
                            {
                                //if (iCurow > intRow)
                                //{
                                //    iCurow = intRow + 1;
                                //}
                                if (dtSearch.Rows[jCurow]["NTNAEVENT"].ToString().Trim() == "0")// && dtSearch.Rows[iCurow]["DATE"].ToString().Trim() != PrevDate.ToString().Trim())  //"0" -- Time In
                                {
 
                                    if (PrevTmIn.ToString().Trim() == "")
                                    {
                                        ((Label)gvRegistList.Rows[iCurow].FindControl("lblCpr")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["CPR_NO"]) ? "" : dtSearch.Rows[jCurow]["CPR_NO"].ToString());
                                        ((Label)gvRegistList.Rows[iCurow].FindControl("lblpatname")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["NAME"]) ? "" : dtSearch.Rows[jCurow]["NAME"].ToString());
                                        ((Label)gvRegistList.Rows[iCurow].FindControl("lblDate")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["DATE"]) ? "" : dtSearch.Rows[jCurow]["DATE"].ToString());
                                        ((Label)gvRegistList.Rows[iCurow].FindControl("lblTimeIn")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["TIMEIN"]) ? "" : dtSearch.Rows[jCurow]["TIMEIN"].ToString());
                                    }
                                    else if (dtSearch.Rows[jCurow]["TIMEIN"].ToString().Trim() != PrevTmIn.ToString().Trim())
                                    {
                                        ((Label)gvRegistList.Rows[iCurow + 1].FindControl("lblCpr")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["CPR_NO"]) ? "" : dtSearch.Rows[jCurow]["CPR_NO"].ToString());
                                        ((Label)gvRegistList.Rows[iCurow + 1].FindControl("lblpatname")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["NAME"]) ? "" : dtSearch.Rows[jCurow]["NAME"].ToString());
                                        ((Label)gvRegistList.Rows[iCurow + 1].FindControl("lblDate")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["DATE"]) ? "" : dtSearch.Rows[jCurow]["DATE"].ToString());
                                        ((Label)gvRegistList.Rows[iCurow + 1].FindControl("lblTimeIn")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["TIMEIN"]) ? "" : dtSearch.Rows[jCurow]["TIMEIN"].ToString());
                                    }
                                    PrevTmIn = dtSearch.Rows[jCurow]["TIMEIN"].ToString().Trim();
                                    //intRow = iCurow;
                                }
                                else if (dtSearch.Rows[jCurow]["NTNAEVENT"].ToString() == "1") //"1" -- Time Out
                                {
                                    if (PrevTmOut.ToString().Trim() == "")
                                    {
                                        ((Label)gvRegistList.Rows[iCurow].FindControl("lblCpr")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["CPR_NO"]) ? "" : dtSearch.Rows[jCurow]["CPR_NO"].ToString());
                                        ((Label)gvRegistList.Rows[iCurow].FindControl("lblpatname")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["NAME"]) ? "" : dtSearch.Rows[jCurow]["NAME"].ToString());
                                        ((Label)gvRegistList.Rows[iCurow].FindControl("lblDate")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["DATE"]) ? "" : dtSearch.Rows[jCurow]["DATE"].ToString());
                                        ((Label)gvRegistList.Rows[iCurow].FindControl("lblTimeOut")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["TIMEOUT"]) ? "" : dtSearch.Rows[jCurow]["TIMEOUT"].ToString());
                                    }
                                    else if (dtSearch.Rows[jCurow]["TIMEOUT"].ToString().Trim() != PrevTmOut.ToString().Trim())
                                    {
                                        ((Label)gvRegistList.Rows[iCurow + 1].FindControl("lblCpr")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["CPR_NO"]) ? "" : dtSearch.Rows[jCurow]["CPR_NO"].ToString());
                                        ((Label)gvRegistList.Rows[iCurow + 1].FindControl("lblpatname")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["NAME"]) ? "" : dtSearch.Rows[jCurow]["NAME"].ToString());
                                        ((Label)gvRegistList.Rows[iCurow + 1].FindControl("lblDate")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["DATE"]) ? "" : dtSearch.Rows[jCurow]["DATE"].ToString());
                                        ((Label)gvRegistList.Rows[iCurow + 1].FindControl("lblTimeOut")).Text = (Convert.IsDBNull(dtSearch.Rows[jCurow]["TIMEOUT"]) ? "" : dtSearch.Rows[jCurow]["TIMEOUT"].ToString());
                                    }
                                    PrevTmOut = dtSearch.Rows[jCurow]["TIMEOUT"].ToString().Trim();
                                }
                                PrevDate = dtSearch.Rows[jCurow]["DATE"].ToString();
 
                            }
                            intRow = iCurow;
                        }
                        InDate = dtSearch.Rows[iCurow]["DATE"].ToString();
 
                        //((Label)gvRegistList.Rows[iCurow].FindControl("lblCpr")).Text = (Convert.IsDBNull(dtSearch.Rows[iCurow]["CPR_NO"]) ? "" : dtSearch.Rows[iCurow]["CPR_NO"].ToString());
 
                    }
 
                    //gvRegistList.DataSource = dtSearch;
                    //gvRegistList.DataBind();
 
                }
                else
                {
                    lblMsg.Text = "No Records Available.";
                    gvRegistList.DataSource = GetEmptyDataTableRegList(20);
                    gvRegistList.DataBind();
                }
            }
            catch (Exception ex)
            {
                lblMsg.Text = "Exception caught here: " + ex.ToString();
            }
        }

[Rabbit]

Please use code tags when posting code.

It would help to know which line threw the error.