I have a rad grid inside there are two numeric textbox and if i change the value of numeric text box it will update the other one as per entered valued. I have applied the tabbing on ItemDatabound command like below:


                Dim currentPageeindex As Integer = rgPremiumAllocationPlan.CurrentPageIndex * (e.Item.ItemIndex + 1)
                TryCast(item.FindControl("rtbAllocPercentPAP"), RadNumericTextBox).TabIndex = CShort(currentPageeindex)
                TryCast(item.FindControl("rtbAllocPremiumPAP"), RadNumericTextBox).TabIndex = CShort(currentPageeindex)
                TryCast(item.FindControl("lnkRemove"), LinkButton).TabIndex = CShort(currentPageeindex)


I have applied a blur event on a numeric textbox like below:
 Dim scriptUpdateAmountDue = "updatePremiumAllocationAmountDue(" + Convert.ToString(currentRowIndex) + "," + txtPercentId + "," + txtPremiumId + "," + lnkButtonId + ")"
                rtbAllocPercentPremium.Attributes.Add("onblur ", scriptUpdateAmountDue)

On blur event below javascript funtion updatePremiumAllocationAmountDue is called:
function updatePremiumAllocationAmountDue(currentRowIndex, txtPercentId, txtPremiumAmountId, lnkButtonId) {
    window.ignoreMessage = false;

    if (calledDueToPremiumAllocation == true) {
        calledDueToPremiumAllocation = false;
        return false;
    }

    var rtbAllocPercentPAP = $("input[id$='" + txtPercentId.id + "']");
    var premiumPercent = rtbAllocPercentPAP.val().replace(/,/g, '');

    if (premiumPercent == '') {
        premiumPercent = 0;
        rtbAllocPercentPAP.val(0);
    }
    calledDueToPremiumAllocation = true;
    if (parseFloat(premiumPercent) > 100) {
        alert('Alloc. % value cannot be greater than 100%.');
        rtbAllocPercentPAP.focus();
        calledDueToPremiumAllocation = true;
        return false;
    }
    else {
        $("input[id$='hdnPAPValidate']").val("0");
        if (parseFloat(rtbAllocPercentPAP[0].defaultValue) != parseFloat(premiumPercent)) {
            calledDueToPremiumAllocation = false;


            if (parseFloat(premiumPercent) == parseFloat($("input[id$='hdnAllocPercentValue']").val())) {
                calledDueToPremiumAllocation = false;
                return false;
            }


            $("input[id$='hdnPapRowIndex']").val(currentRowIndex.toString());
            //$("input[id$='hdnAllocPercentValue']").val(rtbAllocPercentPAP.val());

            if ($("input[id$='hdnAllocPercentValue']").val() != "$" && parseFloat(premiumPercent) <= 100) {
                calledDueToPremiumAllocation = false;
                //        var pos2 = 0;
                //        pos2 = premiumPercent.indexOf('.');
                //        if (pos2 > 0) {
                //            pos2 = pos2 + 5;
                //            premiumPercent = premiumPercent.substring(0, pos2);
                //        }

                $("input[id$='hdnAllocPercentValue']").val(premiumPercent);
                $("input[id$='btnAllocPercentPAP']").click();

//                $("input[id$='" + txtPremiumAmountId.id + "']").focus();
//                $("input[id$='rtbAllocPremiumPAP']").focus();
            }


            calledDueToPremiumAllocation = false;
        }
        else {

            validatePremiumAllocationGridAllPercentItems();
        }
    }
}



From above Javascript funtion a button event click event is called: $("input[id$='btnAllocPercentPAP']").click();

Protected Sub BtnAllocPercentPap_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnAllocPercentPAP.Click

        Dim allocPercentValue As Decimal
        Dim allocPremiumValue As Decimal
        ulErrorMessagePAP.InnerHtml = String.Empty

        Try

            If TypeOf sender Is Button Then

                Dim rowIndex As Integer = Convert.ToInt32(hdnPapRowIndex.Value)
                Try

                    '      hdnPremiumFooterTotalAmountDue.Value = InvoiceDetailsData.Premiums.Compute _
                    '("Sum(" + InvoiceDetailsData.Premiums.AmountDueUIColumn. _
                    ' ColumnName + ")", PolicyInfoConstants.premiumAllocationFilterRowNotDeleted)
                    If (InvoiceDetailsData IsNot Nothing AndAlso InvoiceDetailsData.Premiums IsNot Nothing AndAlso InvoiceDetailsData.Premiums.Rows.Count > 0) Then

                        hdnPremiumFooterTotalAmountDue.Value = (From drow As DataRow In InvoiceDetailsData.Premiums Where _
                                                    drow.RowState <> DataRowState.Deleted AndAlso _
                                                    drow(InvoiceDetailsData.Premiums.RowStateColumn.ColumnName) <> "Deleted" AndAlso Not _
                                                    IsDBNull(drow(InvoiceDetailsData.Premiums.AmountDueUIColumn.ColumnName))). _
                                                    Sum(Function(drow) CType(drow(InvoiceDetailsData.Premiums.AmountDueUIColumn.ColumnName).ToString(), Decimal))

                    Else

                        hdnPremiumFooterTotalAmountDue.Value = "0"

                    End If

                Catch ex As Exception
                    hdnPremiumFooterTotalAmountDue.Value = "0"
                End Try


                Dim rgpremiumAllocationPapItem As GridDataItem = rgPremiumAllocationPlan.MasterTableView.Items.Item(rowIndex)
                'NE-3368
                Dim premiumAllocationKeyDataColumn As RadNumericTextBox = DirectCast(rgpremiumAllocationPapItem.FindControl("hdnPremiumAllocationkeyDataColumn"),  _
                    RadNumericTextBox)
                'NE-3412
                Dim invoiceDetailDatasetRow As DataRow = _
                    InvoiceDetailsData.PremiumAllocation.Rows.Find(DirectCast(rgpremiumAllocationPapItem.FindControl("hdnPremiumAllocationkeyDataColumn"), RadNumericTextBox).Text)

                Dim keyValue As Integer = -1
                If (invoiceDetailDatasetRow IsNot Nothing) Then
                    keyValue = (From row In InvoiceDetailsData.PremiumAllocation.AsEnumerable() _
                                Let r = row.Field(Of Integer)(InvoiceDetailsData.PremiumAllocation.PremiumAllocationkeyDataColumn.ColumnName) _
                               Where r = invoiceDetailDatasetRow(InvoiceDetailsData.PremiumAllocation.PremiumAllocationkeyDataColumn.ColumnName) _
                               Select InvoiceDetailsData.PremiumAllocation.Rows.IndexOf(row)).FirstOrDefault()
                    'invoiceDetailDatasetRow(InvoiceDetailsData.PremiumAllocation.PremiumAllocationkeyDataColumn.ColumnName)
                End If
                'NE-3412
                'NE-3368
                Dim rtbAllocPercentPap As RadNumericTextBox = DirectCast(rgpremiumAllocationPapItem.FindControl("rtbAllocPercentPAP"),  _
                  RadNumericTextBox)
                Dim rtbAllocPremiumPap As RadNumericTextBox = DirectCast(rgpremiumAllocationPapItem.FindControl("rtbAllocPremiumPap"),  _
                   RadNumericTextBox)
                'Dim rtbAllocPercentPap As RadNumericTextBox = DirectCast(sender,  _
                '    RadNumericTextBox)
                'Dim rgpremiumAllocationPapItem As GridItem = _
                '    DirectCast(rtbAllocPercentPap.NamingContainer, GridItem)
                'Dim rtbAllocPremiumPap As RadNumericTextBox = DirectCast( _
                '    rgpremiumAllocationPapItem.FindControl("rtbAllocPremiumPAP"),  _
                '    RadNumericTextBox)
                'NE-3412
                'InvoiceDetailsData.PremiumAllocation.DefaultView.RowFilter = PolicyInfoConstants.premiumAllocationFilterRowNotDeleted
                InvoiceDetailsData.PremiumAllocation.DefaultView.RowFilter = String.Empty
                'NE-3412

                If Not String.IsNullOrEmpty(Server.HtmlEncode(hdnAllocPercentValue.Value)) Then

                    allocPercentValue = _
                        Convert.ToDecimal(Server.HtmlEncode(hdnAllocPercentValue.Value))
                    allocPercentValue = ParsingHelper.RoundDecimal(allocPercentValue, 4)

                    If (allocPercentValue > 100) Then
                        rtbAllocPercentPap.Text = 100
                        allocPercentValue = 100

                    End If

                    If Not String.IsNullOrEmpty(hdnPremiumFooterTotalAmountDue.Value) Then

                        allocPremiumValue = (((Convert.ToDecimal(hdnPremiumFooterTotalAmountDue.Value)) * allocPercentValue) / 100)
                        allocPremiumValue = ParsingHelper.RoundDecimal(allocPremiumValue, 2)

                        InvoiceDetailsData.PremiumAllocation. _
                        DefaultView(keyValue).Row("AllocPremiumAmount") = _
                                   Convert.ToString(allocPremiumValue)

                        InvoiceDetailsData.PremiumAllocation.DefaultView _
                            (keyValue). _
                            Row("AllocationPercentage") = allocPercentValue

                        InvoiceDetailsData.PremiumAllocation.DefaultView( _
                            keyValue). _
                        Row("PolicyID") = PolicyID

                        allocPremiumValue = ((Convert.ToDecimal(hdnPremiumFooterTotalAmountDue.Value)) * _
                              allocPercentValue) / 100
                        allocPremiumValue = ParsingHelper.RoundDecimal(allocPremiumValue, 2)
                        rtbAllocPremiumPap.Text = Convert.ToString _
                            (allocPremiumValue)


                        If IsPlanSelected() Then
                            lnkAddNewAllocationPlan.Enabled = False
                            _isPremiumPlanAllocationGridInEditMode = True
                        End If


                    End If
                Else

                    InvoiceDetailsData.PremiumAllocation.DefaultView(keyValue)("AllocPremiumAmount") = 0
                    InvoiceDetailsData.PremiumAllocation.DefaultView _
                            (keyValue). _
                            Row("AllocationPercentage") = 0


                End If

                If (InvoiceDetailsData.PremiumAllocation.DefaultView(keyValue) _
                           (InvoiceDetailsData.PremiumAllocation.RowStateColumn.ColumnName) = _
                           PolicyInfoConstants.addedRow) Then
                    InvoiceDetailsData.PremiumAllocation.DefaultView _
                        (keyValue) _
                        (InvoiceDetailsData. _
                         PremiumAllocation.RowStateColumn. _
                         ColumnName) = PolicyInfoConstants.addedRow

                Else

                    InvoiceDetailsData.PremiumAllocation.DefaultView( _
                        keyValue) _
                        (InvoiceDetailsData. _
                         PremiumAllocation.RowStateColumn. _
                         ColumnName) = PolicyInfoConstants.modifiedRow
                End If
                'NE-3412
                InvoiceDetailsData.PremiumAllocation.DefaultView.RowFilter = PolicyInfoConstants.premiumAllocationFilterRowNotDeleted
                'NE-3412
                PolicyInfoBO.AddUpdateCacheSerializeObject(_policyInfoDataKey, _
                                                       InvoiceDetailsData, True)

                BindPremiumAllocationPlan()
                rgPremiumAllocationPlan.Rebind()
                hdnAllocPercentValue.Value = "$"

            End If

        Catch ex As Exception

        End Try

    End Sub




Now the problem is that when i enter a amount a amout in a textbox and do tab out it focus on next numeric textbox but then auto btn event is called and after completion of this event it get lost. Please refer screent shot 1. In this if i enter value of a row of Alloc. % and do the tab, when the loader apprear on the screen it sets the focus on the corresponding Alloc.Prem but when the postback operation gets completed and loader gets removed the focus gets lost automatically.

Any suggesstion will be helpful.

Thanks Konstantin Dikov.......

Big thanks! This fixed a postback refocus issue i was having, even solved the same issue when clicking from control to another control.

Been searching for about half a day and finally found this!