Questions on UI for ASP.NET AJAX Forum

1 answer

115 views

how do i cancel a request

I have several ClientDataSources on a page. How do i cancel a long running one if I want to.

Marty

ClientDataSource

answered on 24 Nov 2016

8 answers

199 views

RadDock inside FormView EditItemTemplate

Hi:

I have placed RadDockZone and RadDoc inside of FormView EditItemTemplate. The FormView's ItemUpdating event cannot seem to find the Bind values in the form. If I remove the RadDockZone and RadDoc, it works as expected.

Phil

Dock

answered on 24 Nov 2016

1 answer

177 views

RadAjaxPanel.Redirect Failing to Redirect

Hello, I have an old project I am upgrading to the most recent Telerik Release and I'm running into issues while redirecting from a login page.

The code is pretty straight forwards,. the Default.aspx page looks something like this:

protected void Page_Load(object sender, EventArgs e)

{

if (Context.Session != null)

{

if (Session.IsNewSession)

{

string szCookieHeader = Request.Headers["Cookie"];

if ((null != szCookieHeader) && (szCookieHeader.IndexOf("ASP.NET_SessionId") >= 0))

{

Response.Redirect("/Login.aspx");

}

if (!Convert.ToBoolean(Session["UserIsAdmin"]))

{

//Acquire appropriate redirect path from database

Response.Redirect(redirectPath);

}

else

{

Response.Redirect("/Modules/Admin/UserSetup.aspx");

}

and the login page has a username and password field with a log in button that looks like so:

protected void bLogin_Click(object sender, EventArgs e)

{

try

{

if (allowLogin)

{

UserClass userAuthenticationClass = new UserClass(eUsername.Text, ePassword.Text);

if (userAuthenticationClass.IsValidUser)

{

string s = FormsAuthentication.DefaultUrl;

Session["User"] = userAuthenticationClass;

Session["UserID"] = userAuthenticationClass.UserID;

Session["Username"] = userAuthenticationClass.Username;

Session["UserMasterID"] = userAuthenticationClass.UserMasterID;

Session["UserIsAdmin"] = (eUsername.Text.ToUpper() == "ADMINISTRATOR") ? "True" : "False"

Session["UserType"] = userAuthenticationClass.UserType;

Session["EmailAddress"] = userAuthenticationClass.EmailAddress;

Session["SessionID"] = Guid.NewGuid().ToString();

Session.Timeout = 1440;

AppCode.SessionStatistics.InsertStatistic(Session["SessionID"].ToString(), Session["UserID"].ToString());

RadAjaxPanel1.Redirect("/Default.aspx");

//FormsAuthentication.RedirectFromLoginPage(eUsername.Text, false);

//Response.Redirect("/Default.aspx", false);

//Server.Transfer("/Default.aspx", false);

//Server.Execute("/Default.aspx", true);

}

else

{

LabelMessage.Text = "Could Not Authenticate User";

}

catch (Exception ex)

{

LabelMessage.Text = ex.Message;

}

So Here's where it gets odd. When debugging from Visual Studio, this works correctly. when running on my local web server (set up on my development machine) this also works correctly. but when deployed to a test server, the login button just does not redirect. (it clicks, authenticates the user, then returns to the login page)

I was wondering if it's possible that there is something happening that would cause the Session variables to be lost when using RadAjaxPanel.Redirect?

Keep in mind, this method works perfectly fine on the development environment. Is there anything I need to install/set up on the test environment for this to work?

Ajax

answered on 23 Nov 2016

1 answer

151 views

Invoke ClientDataSource OnCustomParameter event after changing radcombobox selection

i'm cascading dropdownbox (radcombobox) with clientdatasource but i'm a having challenges when changing the main combobox in hopes of having oncustomparameter to fire again.

ComboBox

<telerik:RadComboBox runat="server" EmptyMessage="Function" ID="RcbFun" Width="80px" OnClientLoad="Rcb_OnClientLoad" DataTextField="Code" DataValueField="Functions" AppendDataBoundItems="True" ClientDataSourceID="CdsFunc" ItemsPerRequest="15" Filter="Contains" EnableLoadOnDemand="true" ShowMoreResultsBox="true" EnableVirtualScrolling="true" OnClientSelectedIndexChanged="Rcb_OnClientSelectedIndexChanged"></telerik:RadComboBox>

<telerik:RadComboBox runat="server" EmptyMessage="Sub-Function" ID="RcbSubF" Width="80px" OnClientLoad="Rcb_OnClientLoad" DataTextField="Code" DataValueField="SubFunction" AppendDataBoundItems="True" ClientDataSourceID="CdsSubF" ItemsPerRequest="15" Filter="Contains" HighlightTemplatedItems="true" OnClientSelectedIndexChanged="Rcb_OnClientSelectedIndexChanged" EnableLoadOnDemand="true"></telerik:RadComboBox>

RadClientDataSource

<telerik:RadClientDataSource ID="CdsFunc" runat="server">

<DataSource>

<WebServiceDataSourceSettings BaseUrl="LibraryService.svc/">

<Select Url="GetFunctions" DataType="JSON" RequestType="Get" ContentType="application/json; charset=utf-8" />

</WebServiceDataSourceSettings>

</DataSource>

<Schema DataName="d">

</Schema>

</telerik:RadClientDataSource>

<telerik:RadClientDataSource ID="CdsSubF" runat="server">

<ClientEvents OnCustomParameter="ParamMap" />

<DataSource>

<WebServiceDataSourceSettings BaseUrl="LibraryService.svc/">

<Select Url="RcbGetSubFunctions" DataType="JSON" RequestType="Get" ContentType="application/json; charset=utf-8" />

</WebServiceDataSourceSettings>

</DataSource>

<Schema DataName="d"></Schema>

</telerik:RadClientDataSource>

OnCustomParameter Method

1.function ParamMap(sender, args) {

2. if (RcbFun.get_value() != "") {

3. if (args.get_type() == "read" && args.get_data()) {

4. args.set_parameterFormat({ paramFunction: RcbFun.get_value() });

5. }

6. }

7.}

Loading items into RcbSubF after selecting the a value RcbFun for the first time is not a problem. The issues lies in selecting another value in RcbFun. The OnCustomParameter event "ParamMap" will not fire again. Any suggestion?

Please be advised that these controls are in side a RadPanelBar.

ComboBox

answered on 23 Nov 2016

3 answers

115 views

Hidden Columns Displaying When Browser Maximized

I am currently hiding several gridbound columns on load by setting Display="False".

User can display/hide columns using the column header context menu.

All works fine accept that when a user maximizes the browser window all the hidden columns are displayed.

It doesn't happen every time, though most times.

Tested with same issue on Edge and Firefox.

Any help would be greatly appreciated.

Grid

answered on 23 Nov 2016

5 answers

252 views

ExtractValuesFromItem returning null values in InsertCommand

I have a telerik RadGrid. I have applied Manual CRUD operations in it. I am using In-Place editing mode. The problem is, when I am trying to Insert or Update the records, i am getting null values by this method

e.Item.OwnerTableView.ExtractValuesFromItem(newValues, editedItem);

Same thing happening in both RadGrid_UpdateCommand and RadGrid_InsertCommand.

Following is my ASPX code

<telerik:RadScriptManager runat="server" ID="RadScriptManager1" />

<telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="rGrid">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="rGrid" LoadingPanelID="RadAjaxLoadingPanel1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

<telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1" />

<telerik:RadFormDecorator ID="RadFormDecorator1" runat="server" DecorationZoneID="demo" EnableRoundedCorners="false" DecoratedControls="All" />

<telerik:RadGrid ID="rGrid" runat="server" AllowPaging="True" PageSize="10"

AllowSorting="True" AutoGenerateColumns="false"

AllowFilteringByColumn="True" CellSpacing="0" GridLines="None"

OnNeedDataSource="rGrid_NeedDataSource" OnItemCreated="rGrid_ItemCreated"

OnPreRender="rGrid_PreRender" OnInsertCommand="rGrid_InsertCommand"

OnUpdateCommand="rGrid_UpdateCommand" ondeletecommand="rGrid_DeleteCommand">

<PagerStyle Mode="NextPrevAndNumeric" />

<GroupingSettings CaseSensitive="false" />

<MasterTableView DataKeyNames="ID" EditMode="InPlace" CommandItemDisplay="Top" InsertItemPageIndexAction="ShowItemOnCurrentPage">

<Columns>

<telerik:GridEditCommandColumn ButtonType="ImageButton" UniqueName="EditCommandColumn" HeaderText="Edit">

</telerik:GridEditCommandColumn>

<telerik:GridBoundColumn DataField="ID" UniqueName="ID" HeaderText="ID" ColumnEditorID="GridTextBoxEditor1" ReadOnly="true">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Name" UniqueName="Name" HeaderText="Name" ColumnEditorID="GridTextBoxEditor1">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="ContactPerson" UniqueName="ContactPerson" HeaderText="Contact Person" ColumnEditorID="GridTextBoxEditor2">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Address" UniqueName="Address" HeaderText="Address" ColumnEditorID="GridTextBoxEditor3">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Country" UniqueName="Country" HeaderText="Country" ColumnEditorID="GridTextBoxEditor4">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="City" UniqueName="City" HeaderText="City" ColumnEditorID="GridTextBoxEditor5">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Phone" UniqueName="Phone" HeaderText="Phone" ColumnEditorID="GridTextBoxEditor6">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Email" UniqueName="Email" HeaderText="Email" ColumnEditorID="GridTextBoxEditor7">

</telerik:GridBoundColumn>

<telerik:GridClientDeleteColumn HeaderText="Delete" ButtonType="ImageButton">

<%--<telerik:GridButtonColumn ConfirmText="Delete this product?" ConfirmDialogType="RadWindow"

ConfirmTitle="Delete" ButtonType="ImageButton" CommandName="Delete" />--%>

<HeaderStyle Width="70px" />

</telerik:GridClientDeleteColumn>

</Columns>

<EditFormSettings>

<EditColumn ButtonType="ImageButton" />

</EditFormSettings>

</MasterTableView>

<ClientSettings>

<ClientEvents OnUserAction="UserAction" />

</ClientSettings>

</telerik:RadGrid>

Following is Code behind

public partial class Suppliers : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

}

protected void rGrid_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)

{

Code.BLL.Suppliers objSuppliers = new Code.BLL.Suppliers();

List<Code.BLL.Suppliers> lstSupplier = objSuppliers.Load();

rGrid.DataSource = lstSupplier;

}

protected void rGrid_ItemCreated(object sender, Telerik.Web.UI.GridItemEventArgs e)

{

}

protected void rGrid_PreRender(object sender, EventArgs e)

{

}

protected void rGrid_InsertCommand(object sender, GridCommandEventArgs e)

{

GridEditableItem editedItem = e.Item as GridEditableItem;

Hashtable newValues = new Hashtable();

e.Item.OwnerTableView.ExtractValuesFromItem(newValues, editedItem);

//editedItem.ExtractValues(newValues); I have tried both methods, but got null values from both

}

protected void rGrid_UpdateCommand(object sender, GridCommandEventArgs e)

{

GridEditableItem editedItem = e.Item as GridEditableItem;

//Prepare new dictionary object

Hashtable newValues = new Hashtable();

e.Item.OwnerTableView.ExtractValuesFromItem(newValues, editedItem);

editedItem.ExtractValues(newValues);I have tried both methods, but got null values from both

}

protected void rGrid_DeleteCommand(object sender, GridCommandEventArgs e)

{

}

Grid

answered on 23 Nov 2016

3 answers

338 views

ClientEvents-OnResponseEnd event of RadAjaxManager not firing in Safari browser

Hi,

I have a rad button in a rad window, with both client click and on server event. the page in which the rad window is there has a radajaxmanager and a rad grid. The server event handles the export of radgrid data to an excel, this is an ajax request. I do not want to use the gridexporting. The following code exports the file:

using (ClosedXML.Excel.XLWorkbook wb = new ClosedXML.Excel.XLWorkbook())
{
var worksheet = wb.Worksheets.Add(datatable, fileName);
worksheet.Tables.First().ShowAutoFilter = false;
worksheet.Tables.First().Theme = ClosedXML.Excel.XLTableTheme.None;

httpContext.Response.Clear();
httpContext.Response.Buffer = true;
httpContext.Response.Charset = Encoding.UTF8.WebName;
httpContext.Response.AddHeader("content-disposition", string.Format("{0}{1}", "attachment;filename=", fileName));
httpContext.Response.ContentType = contentType;

using (System.IO.MemoryStream memoryStream = new System.IO.MemoryStream())

{
workbook.SaveAs(memoryStream);
memoryStream.WriteTo(httpContext.Response.OutputStream);
httpContext.Response.Flush();
httpContext.Response.End();
}

}

After exporting the file, the ClientEvents-OnResponseEnd of radajaxmanager is not firing in Safari browser on MAC, I want this event to be fired to hide an image. It is firing in IE and Chrome on both MAC and windows but not in Safari. Please suggest.

Thanks in advance.

Saravana

Ajax

answered on 23 Nov 2016

4 answers

365 views

Telerik Controls not being displayed correctly on IIS

I have an asp.net application hosted on IIS and while the site works perfectly on my local dev machine once I upload it to a web server running IIS, all the controls look wrong.

The runtime DLLs have been installed on the server also.

Not exactly sure why this is happening but I suspect it is some config issue.

See below for how it behaves.

Any idea on a fix?

General Discussions

answered on 23 Nov 2016

2 answers

182 views

Image tag border attribute is deleted by editor

When inserting an image via the Image Manager, the css for the height, width, border attributes that are chosen is properly generated. However, for better compatibility with some email rendering clients, I also need to have these attributes exist as html image tag attributes (for example: <img width="100" height="100" border="2" .) When I manually add these attributes to the image tag, I find that the editor deletes the border attribute. How can I prevent this deletion from occurring? I have uploaded examples to show what I manually add and what the editor keeps/deletes. Thank you.

Editor

answered on 22 Nov 2016

0 answers

104 views

The New Windows 10 Anniversary Version needs up-gradation of telerik winows control

Hello,

We are using Telerik windows control in our code and recently we upgraded to windows 10 anniversary version after the upgrade Telerik windows control grid is not working as expected (Grouping and drag and drop) feature, and we are able to use the same feature in other operating systems. could anybody please help me here, recently all our agents upgraded to windows 10 anniversary version so we have to find a way to fix this problem.

When i am researching about this issue i found some answers if we upgrade .1 Net Framework to another we have upgarde the Telerik Windows Control too, So i wanted to know same issue causing problems in our upgarde to Windows 10 just need your expertise.

Thanks in Advance

Regards,

Mannava

General Discussions

asked on 22 Nov 2016