Questions on UI for ASP.NET AJAX Forum

6 answers

264 views

I am trying to programmatically add a RequiredFieldValidator to a GridDateTimeColumn. However, I get a null reference exception when the grid goes into Edit or Insert mode.

Relevant code is:

                <telerik:GridDateTimeColumn DataField="NoticeDate" HeaderText="Notice Date" UniqueName="NoticeDate"
                    DataFormatString="{0:d}" />

   Private Sub grdNip_ItemCreated(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles grdNip.ItemCreated
        If TypeOf e.Item Is GridEditableItem AndAlso e.Item.IsInEditMode Then
            Dim item As GridEditableItem = e.Item

            Dim dateEditor As GridDateTimeColumnEditor
            Dim valRequired As RequiredFieldValidator
            Dim cell As TableCell

            dateEditor = item.EditManager.GetColumnEditor("NoticeDate")
            cell = dateEditor.PickerControl.Parent
            dateEditor.PickerControl.ID = "dtNoticeDate"
            valRequired = New RequiredFieldValidator()
            valRequired.ControlToValidate = "dtNoticeDate"
            valRequired.ErrorMessage = "Notice date is required"
            cell.Controls.Add(valRequired)
        End If
    End Sub

Stack trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   Telerik.Web.UI.GridDateTimeColumnEditor.set_Text(String value) +34
   Telerik.Web.UI.GridBoundColumn.OnDataBindColumn(Object sender, EventArgs e) +856
   System.Web.UI.Control.OnDataBinding(EventArgs e) +99
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +92
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +211
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +102
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +211
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +102
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +211
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +102
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +211
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +102
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +211
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +102
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +211
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +102
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +211
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +102
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +211
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +102
   System.Web.UI.Control.DataBind() +15
   Telerik.Web.UI.GridEditFormItem.SetupItem(Boolean dataBind, Object dataItem, GridColumn[] columns, ControlCollection rows) +227
   Telerik.Web.UI.GridItemBuilder.CreateItems(GridGroupingContext group) +869
   Telerik.Web.UI.GridTableView.CreateItems(IEnumerator enumerator, GridColumn[] columns, ControlCollection controls) +129
   Telerik.Web.UI.GridTableView.CreateControlHierarchy(Boolean useDataSource) +994
   Telerik.Web.UI.GridTableView.CreateChildControls(IEnumerable dataSource, Boolean useDataSource) +545
   System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data) +57
   System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) +114
   System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +31
   System.Web.UI.WebControls.DataBoundControl.PerformSelect() +142
   Telerik.Web.UI.GridTableView.PerformSelect() +16
   System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +73
   Telerik.Web.UI.GridTableView.DataBind() +221
   Telerik.Web.UI.GridTableView.Rebind() +48
   Telerik.Web.UI.GridCommandEventArgs.ExecuteCommand(Object source) +159
   Telerik.Web.UI.RadGrid.OnBubbleEvent(Object source, EventArgs e) +134
   System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37
   Telerik.Web.UI.GridItem.OnBubbleEvent(Object source, EventArgs e) +87
   System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37
   System.Web.UI.WebControls.LinkButton.OnCommand(CommandEventArgs e) +118
   System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) +135
   System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +175
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565

Grid

answered on 13 Dec 2011

4 answers

353 views

Unable to get value selected in one Radcombobox to OnItemsRequested event of the another RadComboxbox

There are two RadComboBox in RadGrid. I need to filter the list of one combobox based on the selected value of the other RadComboBox..
If there is any solution to this problem kindly post as soon as possible.

The code that i have written on OnItemsRequested event of dependant RadComboBox is

List<Item> oItemList = null;

RadComboBox ddlItemName = (RadComboBox)sender;

Item oItem = new Item();

GridDataItem oGridDataItem = (GridDataItem)ddlItemName.Parent.Parent;

if (!string.IsNullOrEmpty(e.Text))

{

oItem.ItemName = e.Text;

if (oGridDataItem != null)

{

RadComboBox ddlMake = (RadComboBox)oGridDataItem.FindControl("ddlMake");

if (ddlMake != null && !string.IsNullOrEmpty(ddlMake.SelectedValue))

oItem.MakeId = Convert.ToInt64(ddlMake.SelectedValue);

ComboBox

answered on 13 Dec 2011

3 answers

113 views

The type or namespace name 'RadSchedulerRecurrenceEditor' does not exist in the namespace

i am getting this error when i add the radschdulerrecurrenceeditor in RadDock, is there something missing? or we need to add some dll? we have 2009 version of Telerik.Web.UI

Scheduler

answered on 13 Dec 2011

4 answers

414 views

Radgrid Footer static fixed

Hello,

how can i config the paging-bar in fixed mode?
the problem is, when i grouping the items, the paging-footer is align on the last column and when i open the last grouping item, then i can not see the child-items.
but when i resize the ie-window, the paging footer is going to bottom.
is this a bug?

and the second is, i config the pagingstyle position = top, but the paging is ever on buttom.

update: now i see, this is not a paging problem, because i disable the paging "alwaysvisible = false" and i have the same problem with the radgrid-footer. see attachment.

update2: the problem is the scrollbar. how i can config the scrollbar she is ever on buttom?

best recards

Grid

answered on 13 Dec 2011

3 answers

124 views

How to use radcombobox into radgrid using datakeynames

Hi,

I am using radgrid and displaying record with datasource. i am using radcombobox into radgrid. i want display record using datasource wtih radgrid datakeynames. that is i want put a query into datasource using )where plan_id="Datakerynames").

How to get record. let me know if you have any tips.

Thanks,
Dhamu.

Grid

answered on 13 Dec 2011

1 answer

111 views

Applying background-position to panel item

I'm having trouble overriding the style applied to a rad panel item, the css shows that the background-position style is 0px 0px and it is being set from webResource.axd. I'm trying to apply the "selected" look all the time (which has a background-position settting of 0px -400px.

I'm using the default skin (ie. no skin is set on the panelBar or panelItem).

this is a snippet of my page just before the radpanelbar:

<style type="text/css">

.RadPanelBar a.rpLink,

.RadPanelBar div.rpHeaderTemplate,

.RadPanelBar a.rpExpanded,

.RadPanelBar div.rpExpanded,

.RadPanelBar .rpItem a.rpLinkExpandHovered

.RadPanelBar_Default DIV.rpExpanded

{

background-position: 0 -400 !important;

font: 14px/24px "Segoe UI", Arial, sans-serif;

padding-bottom: 0px;

padding-top: 0px;

background-image: images/button_downloadtopdf.gif;

}

.myStyle DIV.rpExpanded

{

background-position: 0 -400 !important;

}

</style>

Directly following the style tag I have the following panel bar with the following panel item

<telerik:RadPanelBar id="pbApplicantDetail" runat="server" Width="782px" OnClientItemClicked="pbApplicantDetail_ItemClicked" BackColor="#FFFFCC" CssClass="myStyle" >

<Items>

<telerik:RadPanelItem Text="Applicant Details" Value="piApplicantDetail">

<HeaderTemplate>

<Applicant:Message runat="server" id="UCApplicantDetail"></Applicant:Message>

</HeaderTemplate>

</telerik:RadPanelItem>

<telerik:RadPanelItem runat="server" Text="Rule Information" Visible="true" Expanded="true" BorderStyle="None" Width="779px" CssClass="myStyle" >

<HeaderTemplate>

<asp:PlaceHolder ID="ruleHeaderPlaceholder" runat="server"></asp:PlaceHolder>

<%--<RuleHeader:Message runat="server" ID="UCRulesHeader" />--%>

</HeaderTemplate>

<ContentTemplate>

<%--<asp:PlaceHolder ID="ruleBodyPlaceholder" runat="server"></asp:PlaceHolder>--%>

<Rules:Message runat="server" id="UCRulesDetail"></Rules:Message>

</ContentTemplate>

</telerik:RadPanelItem>

I'm looking at getting the style applied to the "Rule Information" panel item in the header. It always shows up with the background position set to 0px 0px until the header is clicked, then it changes to 0px -400px which is what I want it to always be. Setting the selected property to true shows it correct, but once it is not selected then it changes back.

PanelBar

answered on 13 Dec 2011

3 answers

85 views

Client-side enable the RadDatePicker button

Dear Telerik support team,

We use the RadDatePicker in our application and server-side I disable the popup button. Now I want to enable the button again when I start to edit the date client-side, but I can not find a way to do this.

I don't want to disable the whole datepicker, because it can not get any focus anymore after that.

Is it possible to do this client-side?

Erik Brink

General Discussions

answered on 13 Dec 2011

3 answers

152 views

radcombobox onclientfocus get triggered on pageload

I'm using a table to build a form and everytime a control is focused, I'm trying to change the background color of the table row to highlight the focus on that control. I'm doing that by changing the class of the row where the control is contained. I noticed that on the first page load all radcombobox controls get focused somehow but do not get unfocused so this makes that some rows are imediate highlighted even if the user didn't even go near those controls. When the control loses the focus it changes the row class back to the unselected state.

Is there anyway of this controls not getting focused on pageload?

I've tried to set focus on some other control (the button this case) to see if it would trigger the onblur of the radcombobox but didn't work.

My markup and javascript functions look like this

<script type="text/javascript">

function findControl(tagName, controlId) {

var aControls = document.getElementsByTagName(tagName);

if (aControls == null)

return null;

for (var i = 0; i < aControls.length; i++) {

var j = aControls[i].id.lastIndexOf(controlId);

if ((j - 1) && (j == (aControls[i].id.length - controlId.length)))

return aControls[i];

}

return null;

}

function HighlightRow(focus, CStableElemID, CSControlID) {

//alert("I'm Here")

var input = findControl(CStableElemID, CSControlID)

//alert(input)

if (focus) input.className = "tableFormRowSelected";

else input.className = "tableFormRowUnselected";

}

</script>

<table id="tableform" runat="server">

<tr id="fromAccountRow">

<td nowrap="nowrap">

<asp:Label ID="lblFromAccount" runat="server" Text="From Account: "></asp:Label>

</td>

<td>

<telerik:RadComboBox ID="fromAccount" Runat="server" AutoPostBack="True" CausesValidation="False" DropDownWidth="330px" Width="200px" EnableLoadOnDemand="true" EmptyMessage="Please Select" HighlightTemplatedItems="true" AllowCustomText="true" OnClientFocus="HighlightRow(true, 'tr', 'fromAccountRow')" OnClientBlur="HighlightRow(false, 'tr', 'fromAccountRow')">

<ItemTemplate>

<ul>

<li class="fromAccountCol1">a</li>

<li class="fromAccountCol2">b</li>

<li class="fromAccountCol3">d</li>

</ul>

</ItemTemplate>

</telerik:RadComboBox>

<asp:RequiredFieldValidator

ID="RequiredFromAccountValidator"

runat="server"

ErrorMessage="!"

ControlToValidate="fromAccount">

</asp:RequiredFieldValidator>

</td>

</tr>

<tr id="fromAccountTextRow">

<td>

<asp:Label ID="lblFromAccountText" runat="server" Text="Text On Account Statement: "></asp:Label>

</td>

<td>

<telerik:RadTextBox ID="Description" runat="server" MaxLength="128" onBlur="HighlightRow(false, 'tr', 'fromAccountTextRow')" OnFocus="HighlightRow(true, 'tr', 'fromAccountTextRow')"></telerik:RadTextBox>

<asp:RequiredFieldValidator ID="FromDescriptionRequiredValidator" runat="server" ErrorMessage="!" ControlToValidate="Description"></asp:RequiredFieldValidator>

</td>

</tr>

<tr id="toAccountRow">

<td>

<asp:Label ID="lblToAccount" runat="server" Text="To Account: "></asp:Label>

</td>

<td>

<telerik:RadComboBox ID="toAccount" runat="server" CausesValidation="false" EmptyMessage="Please Select" DropDownWidth="330px" Width="200px" AllowCustomText="True" HighlightTemplatedItems="true" OnClientFocus="HighlightRow(true, 'tr', 'toAccountRow')" OnClientBlur="HighlightRow(false, 'tr', 'toAccountRow')">

<ItemTemplate>

<ul>

<li class="toAccountCol1"><%# DataBinder.Eval(Container.DataItem, "Account")%></li>

<li class="toAccountCol2"><%# DataBinder.Eval(Container.DataItem, "AccountNumber")%></li>

<li class="toAccountCol3"><%# DataBinder.Eval(Container.DataItem, "Balance", "{0:c}")%></li>

</ul>

</ItemTemplate>

</telerik:RadComboBox>

</td>

</tr>

<tr id="toAccountTextRow">

<td>

<asp:Label ID="lblToAccountText" runat="server" Text="Reference: "></asp:Label>

</td>

<td>

<telerik:RadTextBox ID="Reference" runat="server" MaxLength="128" onBlur="HighlightRow(false, 'tr', 'toAccountTextRow')" OnFocus="HighlightRow(true, 'tr', 'toAccountTextRow')"></telerik:RadTextBox><asp:RequiredFieldValidator ID="ToDescriptionRequiredValidator" runat="server" ErrorMessage="!" ControlToValidate="Reference"></asp:RequiredFieldValidator>

</td>

</tr>

</table>

<telerik:RadButton ID="btnTransfer" runat="server" Text="Transfer"></telerik:RadButton>

Also find attached a screenshot of what the form looks like on the first page load. Note that the goal is to have no blue background rows on first page load as there isn't any control focused yet.

Thanks

Joao

ComboBox

answered on 13 Dec 2011

3 answers

64 views

Tool Tip doesn't apperars if i use page scroll.

Helo all

Am facing a problem , if i use page scroll tool tip fails to appear .. is this the default behavior ? if not how can i resolve this issue ??
thanks in advance

-Prince

Chart (Obsolete)

answered on 13 Dec 2011

2 answers

214 views

How to open window.showModalDialog and hide context menu?

Hi,

How to open window.showModalDialog with OnClientItemClicking event and hide context menu? (Context menu always presented and this is very bad!)

Thanks!

Menu

answered on 13 Dec 2011