Questions on UI for ASP.NET AJAX Forum

4 answers

117 views

dear all

have a good day

i've a radschadualr in which students segister there schadual.

this schadual consists of substances each one is (leacture-tutorial-lab).

what i need is forcing the student to choose these sub categories (leacture-tutorial-lab) before leaving to choose new subject. and if he tries an error msg popup saying that "you should choose all substance groop- please complete your choice".

here is the code i wrote but it does't work.

if

(this.treeView.SelectedNode == null)

return;

if (this.treeView.SelectedNode.Value != "m")

return;

string s = this.treeView.SelectedNode.Text;

string corsnode = this.treeView.SelectedNode.ParentNode.Text;

string cors_id = corsnode.Substring(0, corsnode.IndexOf('-') - 1).Trim();

string stu_id = Session["test"].ToString();

OracleConnection conn = new OracleConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);

try

{

conn.Open();

OracleCommand cmd = new OracleCommand("COMPLETE_GROUP_TYPE");

cmd.CommandType =CommandType.StoredProcedure;

cmd.Connection = conn;

cmd.Parameters.Add("COURSEID", OracleType.Char).Value = cors_id.ToString();

cmd.Parameters.Add("STUDENTID", OracleType.Char).Value = stu_id.ToString();

cmd.ExecuteNonQuery();

}

catch (Exception ex)

{

Label2.Text ="ERROR."+ ex.Message;

}

finally

{

conn.Close();

}

Scheduler

answered on 29 Jul 2011

4 answers

208 views

RadListBoxItemCollection client API issue with forEach when using IE 8

I have the following javascript function for the OnClientTransferred event of a RadListBox. This function works fine with Firefox and Chrome but I get a javascript error with IE 8.
Here is my javascript.

    
                 <telerik:RadCodeBlock ID="RadCodeBlockMain" runat="server"> 
        
            <script type="text/javascript"> 
        
                       function OnClientTransferredHandler(sender, e) { 
        
                           var myitems; 
        
                           var radbox = $find('<%= CurrentlyTransferredValues.ClientId %>'); 
        
                           var radbox2 = $find('<%= SourceListBox.ClientId %>'); 
        
                           myitems = e.get_items(); 
        
                           myitems.forEach(function(item) { radbox.set_value(radbox.get_value() + item.get_value() + ","); }); 
        
                           radbox2.set_value(e.get_sourceListBox().get_id()); 
        
                       } 
        
             </script> 
        
               </telerik:RadCodeBlock>

The error from IE 8 is the following.
"Microsoft Jscript runtime error: Object doesn't support this property or method"
It seems to fail at line with the forEach statement.

Thanks in Advance

ListBox

answered on 29 Jul 2011

1 answer

148 views

Change to RadTabStrip's RenderSelectedPageOnly property causing problems

In release 2011.1 519 an issue was fixed according to Telerik's release notes: Fixed: RadMultiPage: RenderSelectedPageOnly property was applied multiple times and too early in the Page Lifecycle, setting non-selected PageViews to Visible=false and causing troubles persisting state of some of the controls inside the views

This change seems to be causing me problems now.
It seems that the PageView only becomes visible now very late in the cycle! During Page.LoadComplete the selected page view seems to still be invisible, only becoming visible by PreRender.

This is making it difficult to deal with child controls of the PageView as the controls appear to be invisible until Page.PreRender, by which stage it is often too late to handle certain tasks.

Can you confirm this is correct?

The old behaviour wasn't causing me problems (as far as I am aware). Perhaps I could work around these new changes by manually setting the PageView to visible in my own code. Do you know of any workaround?

TabStrip

answered on 29 Jul 2011

1 answer

99 views

RadWindow is not displayed

Hello,

To test your RadWindow component for ajax, asp.net, i have create a page and did the same thing at the following exemple: http://demos.telerik.com/aspnet-ajax/window/examples/default/defaultcs.aspx. But i didn't get the same result: I don't have any window display in my page!
I have taken a look at "http://www.telerik.com/help/aspnet-ajax/window-overview-migrating-from-classic-to-prometheus.html" to see if there is any step missed. The explaination was not so clear to me since the links redirect to an error page "http://www.asp.net/ajaxlibrary/act.ashx".

You may have an idea about the origin of this problem. Thank You for help.

E.Bougnon

Window

answered on 29 Jul 2011

2 answers

101 views

add OnError to GridDateTimeColumn

Is it possible to add an OnError ClientEvent to the DatePicker control when a GridDateTimeColumn is opened for Edit?

there are 3 clientevents - OnDateSelected, OnPopupOpening, OnPopupClosing but not OnError

thanks
Marianne

Grid

answered on 29 Jul 2011

9 answers

250 views

LoadControl, updatepanel and postback

Hi,

I use LoadControl in CodeBehind, like this: RadMenuItem.Controls.Add(LoadControl("/login.ascx"));

It work out fine, and my login control are now inside r.a.d.menu.

BUT - if /login.ascx fail to login, I would like the r.a.d.menu item to open again and show the user, that a login problem occurred.

AND - if I implement an UpdatePanel in my /login.ascx file, it will fail with:
Cannot unregister UpdatePanel with ID '' since it was not registered with the ScriptManager. This might occur if the UpdatePanel was removed from the control tree and later added again, which is not supported.
Parameter name: UpdatePanel

Does anyone have solutions to these problems?

Menu

answered on 29 Jul 2011

2 answers

102 views

"No records to display." doesnt show

I have this

protected void MatrixGridNeedDataSource(object source, Telerik.Web.UI.GridNeedDataSourceEventArgs e)
        {
            _matrixGrid.DataSource = CommonGrid.ListDocuments;
        }

Sometime CommonGrid.ListDocuments is Null... I need in this case that ""No records to display." message appear.
But doesnt show it in Grid.
I set _matrixGrid.MasterTableView.EnableNoRecordsTemplate = true;
I created the grid programmatically.

Grid

answered on 29 Jul 2011

1 answer

383 views

telerik.web.ui.webresource.axd too long to download

The Intranet of my company is quite slow, it takes 4 seconds to download the telerik.web.ui.webresource.axd resource :(
How could I reduce that?
- Is it possible to cache this resource?
- I thought about setting Telerik.EnableEmbeddedScripts to false in the web.config file, and then adding all scripts in RadScriptManager (as explained here: http://www.telerik.com/help/aspnet-ajax/introduction-disabling-embedded-resources.html ). Then I could set Expires header on the script folder so they will be downloaded only once.

What's the best solution?

General Discussions

answered on 29 Jul 2011

1 answer

126 views

Client side loading of hierarchical grid.

Dear All,

This is my first post here.

We have a 4 level hierarchical data. The data for all the 4 levels is loaded from javascript using page methods.
The data hierarchy is as follows. Specimen -->Part-->Block-->Slide.

I could get the Specimen and the Part thing working. I am stuck on loading the 3rd level (the Block Data).

Here are the issues I am facing:-

If I provide the DataKeyNames and ClientDataKeyNames property on the grid for Parts, the rendering fails with the message 'PartID is not a column or a relation in the table'. I cannot even provide the HierarchyLoadMode on the grid. Without the hierarchyLoadMode, when the Part is expanded, the hierarchyExpanding event does not fire. Instead the command event fires.

Here is the file. If needed I can post a subset of the application

<telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">

<script type="text/javascript" language="javascript">

function createCallBack(tableView, div) {

return function(result) {

if (result != null && div != null) {

div.style.display = "block";

}

tableView.set_dataSource(result);

tableView.dataBind();

if (result.count != null) {

tableView.set_virtualItemCount(result.Count);

}

};

}

function createPartsCallBack(tableView, div) {

return function(result) {

if (result != null && div != null) {

div.style.display = "block";

}

tableView.set_dataSource(result.Parts);

tableView.dataBind();

if (result.Count != null) {

tableView.set_virtualItemCount(result.Count);

}

};

}

/*functions for specimen History Start*/

function loadSpecimenHistory() {

var tblView = $find("<%=radGridHistory.ClientID %>").get_masterTableView();

var divHistory = document.getElementById('divHistory');

//Pass in the selected Specimen Id

var result = PageMethods.FindSpecimen(20, createCallBack(tblView, divHistory));

}

function radGridHistory_hierarchyExpanding(sender, args) {

var firstClientDataKeyName = args.get_tableView().get_clientDataKeyNames()[0];

if (firstClientDataKeyName == "SpecimenID") {

var tblView = $find("<%= radGridHistory.Items(0).ChildItem.NestedTableViews(0).ClientID%>");

var currentPageIndex = tblView.get_currentPageIndex();

var pageSize = tblView.get_pageSize();

var sortExpressionsAsSQL = tblView.get_sortExpressions().toString();

var filterExpressionsAsSQL = tblView.get_filterExpressions().toString();

var result = PageMethods.FindSpecimenHistoryParts(args.getDataKeyValue(firstClientDataKeyName),

currentPageIndex * pageSize,

pageSize,

sortExpressionsAsSQL,

filterExpressionsAsSQL,

createPartsCallBack(tblView,null));

}

//Grid command invoked (sort)

function radGridHistory_command(sender, args) {

args.set_cancel(true);

if (args.get_commandName() == "ExpandCollapse") {

var tblView = $find("<%= radGridHistory.Items(0).ChildItem.NestedTableViews(0).ClientID%>");

}

var tblView = args.get_tableView();

var tableName = tblView.get_name()

var specimenId = sender.get_masterTableView().get_dataItems()[0].get_dataItem().SpecimenID;

if (tableName == "Parts") {

var pageSize = tblView.get_pageSize();

var sortExpressionsAsSQL = tblView.get_sortExpressions().toString();

var filterExpressionsAsSQL = tblView.get_filterExpressions().toString();

var currentPageIndex = tblView.get_currentPageIndex();

var result = PageMethods.FindSpecimenHistoryParts(specimenId,

currentPageIndex * pageSize,

pageSize,

sortExpressionsAsSQL,

filterExpressionsAsSQL,

createPartsCallBack(tblView, null));

}

/*functions for specimen History END*/

</script>

</telerik:RadCodeBlock>

<div id="divHistory" style="display:none">

<telerik:RadGrid ID="radGridHistory" runat="server" EnableViewState="False" AllowSorting="True"

GridLines="None" ShowStatusBar="false" >

<ClientSettings AllowExpandCollapse="true">

<ClientEvents OnHierarchyExpanding="radGridHistory_hierarchyExpanding" OnCommand="radGridHistory_command" />

</ClientSettings>

<PagerStyle Mode="NumericPages" AlwaysVisible="true"></PagerStyle>

<MasterTableView AllowMultiColumnSorting="false" TableLayout="Fixed" HierarchyLoadMode="Client"

DataKeyNames="SpecimenID" ClientDataKeyNames="SpecimenID" AllowPaging="false"

Width="100%">

<DetailTables>

<telerik:GridTableView Width="100%" Name="Parts" PageSize="4" AllowPaging="true"

AllowCustomPaging="true" >

<DetailTables>

<telerik:GridTableView Width="100%" Name="Blocks" PageSize="4" AllowPaging="true"

AllowCustomPaging="true" >

<Columns>

<telerik:GridBoundColumn SortExpression="BlockID" HeaderText="BlockID" HeaderButtonType="TextButton"

DataField="BlockID" UniqueName="BlockID">

</telerik:GridBoundColumn>

</Columns>

</telerik:GridTableView>

</DetailTables>

<Columns>

<telerik:GridBoundColumn SortExpression="PartID" HeaderText="PartID" HeaderButtonType="TextButton"

DataField="PartID" UniqueName="PartID">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn SortExpression="Name" HeaderText="Part Name" HeaderButtonType="TextButton"

DataField="Name">

</telerik:GridBoundColumn>

</Columns>

<PagerStyle AlwaysVisible="True" Mode="NumericPages"></PagerStyle>

</telerik:GridTableView>

</DetailTables>

<Columns>

<telerik:GridBoundColumn SortExpression="SpecimenID" HeaderText="SpecimenID" HeaderButtonType="TextButton"

DataField="SpecimenID" />

<telerik:GridBoundColumn SortExpression="SpecimenName" HeaderText="Specimen Name"

HeaderButtonType="TextButton" DataField="SpecimenName" />

</Columns>

<PagerStyle AlwaysVisible="True"></PagerStyle>

</MasterTableView>

</telerik:RadGrid>

</div>

Would really appreciate if someone can look into this and help me out.

Thanks in advance.

Grid

answered on 29 Jul 2011

1 answer

156 views

Inner items position

Hi forum!

I'm trying to make a 3 division panelbar for the purpose os recreating a simple webmail. The first division is for the user write the message and choose the destinations, the second division is for reading selected messages and the third is for showing the messages with a radgrid and the option to see between received and sent.
In the first division i have 2 labels ("For:" and "From:"), 2 RadTextBox("From" that has enabled=false and "Message" that has type=Multyline) and 1 RadComboBox(that serves as a "For" selector). I have set their position with property style ( using top left width and height) and i did so with percentage values and pixel values and neither got right. For position i have tried them all and nothing thought position relative putted these items inside the radpanel.
Where i have the items in inside the respective telerik:raspanelitem then inside items then inside telerik:radpanelitem then inside itemtemplate ( as seen in this demo -> telerik demo of nested controls inside radpanelbar) then inside a div (i also tried without the div).
My RadPanelBar is inside a div witch width and height are static in pixel values, below follows the code of mypanelbar and his superior container

<div style="border-style:inset; width:1093px; height:856px; left:50%; top:130px; margin-left:-546px; position:absolute">

<telerik:RadPanelBar ID="RadPanelBar1" runat="server" Height="100%"

Skin="Simple" Width="100%" style="position:absolute;">

<Items>

<telerik:RadPanelItem runat="server" Text="Escrever Mensagem"

ChildGroupHeight="282px" Expanded="True">

<Items>

<telerik:RadPanelItem Value="escrever" runat="server">

<ItemTemplate>

<div style="position:relative">

<telerik:RadTextBox ID="RadTextBox1" runat="server"

style="z-index: 1; left: 50%; top: 1%; position: relative;"

Height="277px" TextMode="MultiLine" Width="50%">

<PasswordStrengthSettings ShowIndicator="False" CalculationWeightings="50;15;15;20" PreferredPasswordLength="10" MinimumNumericCharacters="2" RequiresUpperAndLowerCaseCharacters="True" MinimumLowerCaseCharacters="2" MinimumUpperCaseCharacters="2" MinimumSymbolCharacters="2" OnClientPasswordStrengthCalculating="" TextStrengthDescriptions="Very Weak;Weak;Medium;Strong;Very Strong" TextStrengthDescriptionStyles="riStrengthBarL0;riStrengthBarL1;riStrengthBarL2;riStrengthBarL3;riStrengthBarL4;riStrengthBarL5;" IndicatorElementBaseStyle="riStrengthBar" IndicatorElementID=""></PasswordStrengthSettings>

</telerik:RadTextBox>

<asp:Label ID="Label2" runat="server" Text="DE:"

style="z-index: 1; left: 90%; top: 10%; position: relative"></asp:Label>

<asp:Label ID="Label3" runat="server" Text="PARA:"

style="z-index: 1; left: 90%; top: 20%; position: relative"></asp:Label>

<telerik:RadTextBox ID="RadTextBox2" runat="server" Width="20%"

style="z-index: 1; left: 80%; top: 10%; position: relative">

<PasswordStrengthSettings ShowIndicator="False" CalculationWeightings="50;15;15;20" PreferredPasswordLength="10" MinimumNumericCharacters="2" RequiresUpperAndLowerCaseCharacters="True" MinimumLowerCaseCharacters="2" MinimumUpperCaseCharacters="2" MinimumSymbolCharacters="2" OnClientPasswordStrengthCalculating="" TextStrengthDescriptions="Very Weak;Weak;Medium;Strong;Very Strong" TextStrengthDescriptionStyles="riStrengthBarL0;riStrengthBarL1;riStrengthBarL2;riStrengthBarL3;riStrengthBarL4;riStrengthBarL5;" IndicatorElementBaseStyle="riStrengthBar" IndicatorElementID=""></PasswordStrengthSettings>

</telerik:RadTextBox>

<telerik:RadComboBox ID="RadComboBox1" runat="server" Width="20%"

style="z-index: 1; left: 80%; top: 20%; position: relative">

</telerik:RadComboBox>

<telerik:RadListBox ID="RadListBox1" runat="server" AllowDelete="True"

style="left: 90%; top: 30%; position: relative; height: 69%; width: 30%;">

<ButtonSettings TransferButtons="All"></ButtonSettings>

<Items>

<telerik:RadListBoxItem runat="server" />

</Items>

<Localization Delete="Remover" />

</telerik:RadListBox>