Questions on UI for ASP.NET AJAX Forum

1 answer

262 views

Hi,

I have two questions regarding opening a rad window. Please note in both scenario's I don't want to use the radalert or radconfirm dialog boxes, I want to be able to display my own message box.

First question, I have a page with a radgrid and am using linkbuttons in the CommandItemTemplate to perform add/updates/deletes and everything works great. When a user adds a new record, I perform validation that checks for a duplicate value against the database or a null value. If a duplicate'null value is found then I open a radwindow that displays a message to the user that a duplicate/null value has been found and again this works great. The problem is that when the radwindow opens a postback occurs. I don't want this to happen.

I have read the article Calling radalert from codebehind (all versions of RadWindow) and cannot figure out how top apply this to my code. The scenario where I am calling the radwindow is a little different. The code that opens the the rad window is in another module.

Here is the code that calls the radwindow;

<CommandItemTemplate >

<div style="padding: 5px 5px;">

<asp:LinkButton ID="lbtAdd" runat="server" CommandName="InitInsert" Visible=

'<%# Not rgvSecurityGroups.MasterTableView.IsItemInserted %>'><asp:Image ID="imgAdd" runat="server" CssClass="css_GFS01_Image_Align" ImageURL="<%$ Resources:Images,AddGreen16%>" /> Add </asp:LinkButton>

<asp:LinkButton ID="btnEditSelected" runat="server" CommandName="EditSelected" Visible=

'<%# rgvSecurityGroups.EditIndexes.Count = 0 and Not rgvSecurityGroups.MasterTableView.IsItemInserted %>'>          <asp:Image runat="server" CssClass="css_GFS01_Image_Align" ImageURL="<%$ Resources:Images, EditGreen16%>"/> Edit </asp:LinkButton>

<asp:LinkButton ID="btnCancel" runat="server" CommandName="CancelAll" Visible=

'<%# rgvSecurityGroups.EditIndexes.Count > 0 Or rgvSecurityGroups.MasterTableView.IsItemInserted %>'><asp:Image ID="imgCancel" runat="server" CssClass="css_GFS01_Image_Align" ImageURL="<%$ Resources:Images,CancelGreen16%>" /> Cancel </asp:LinkButton>

<asp:LinkButton ID="lbtSaveNew" runat="server" CommandName="PerformInsert" Visible=

'<%# rgvSecurityGroups.MasterTableView.IsItemInserted%>'><asp:Image ID="imgSaveNew" runat="server" CssClass="css_GFS01_Image_Align" ImageURL="<%$ Resources:Images,SaveButton18%>" /> Save New</asp:LinkButton>

<asp:LinkButton ID="lbtDelete" runat="server" CommandName="DeleteSelected" Visible=

'<%# rgvSecurityGroups.EditIndexes.Count = 0 and Not rgvSecurityGroups.MasterTableView.IsItemInserted %>'><asp:Image ID="imgDelete"       runat="server" CssClass="css_GFS01_Image_Align" ImageURL="<%$ Resources:Images,DeleteRed16%>" />Delete </asp:LinkButton>

<asp:LinkButton ID="lbtSave" runat="server" CommandName="UpdateEdited" Visible=

'<%# rgvSecurityGroups.EditIndexes.Count > 0 or rgvSecurityGroups.MasterTableView.IsItemInserted%>'><asp:Image runat="server" CssClass="css_GFS01_Image_Align" ImageURL="<%$ Resources:Images,SaveBlue16%>" />  Update </asp:LinkButton>

<asp:LinkButton ID="lbtRefresh" runat="server" CommandName="RebindGrid" ><asp:Image id="imgRefresh" runat="server" CssClass="css_GFS01_Image_Align" ImageURL="<%$Resources:Images, ReloadBlue16 %>" AlternateText ="Refresh Grid" /></asp:LinkButton>

</div>

</CommandItemTemplate>

Private Sub rgvSecurityGroups_InsertCommand(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) Handles rgvSecurityGroups.InsertCommand

Dim InsertedItem As GridDataInsertItem = DirectCast(e.Item.OwnerTableView.GetInsertItem(), GridDataInsertItem)

Dim strSecurityGroup As String = DirectCast(InsertedItem("SecurityGroup").Controls(0), TextBox).Text

Dim aryParameters(2) As String

Dim strMessageType As String = Nothing

Dim strMessage As String = Nothing

Dim strMessageHeading As String = Nothing

If strSecurityGroup Is Nothing Or IsDBNull(strSecurityGroup) Or Len(strSecurityGroup) = 0 Then

strMessageType = "Error"

strMessageHeading = "Null Value"

aryParameters(0) = "Security Group"

aryParameters(1) = strSecurityGroup

strMessage = UDF_GetErrorMessage("Null Value", aryParameters)

USB_DisplayMessage(strMessageType, strMessageHeading, strMessage, "Medium", "Black", Me.rwmMessageBox)

Else

If pUDF_DuplicateValueCheck(0, strSecurityGroup) = True Then

strMessageType = "Error"

strMessageHeading = "Duplicate Value"

aryParameters(0) = "Security Group"

aryParameters(1) = strSecurityGroup

strMessage = UDF_GetErrorMessage("Duplicate Value", aryParameters)

USB_DisplayMessage(strMessageType, strMessageHeading, strMessage, "Medium", "Black", Me.rwmMessageBox)

Else

Me.SQLDS_SecurityGroups.InsertCommandType = SqlDataSourceCommandType.Text

Me.SQLDS_SecurityGroups.InsertCommand = "EXEC [Security].[DSP_SEL-INS-UPD-DEL-SecurityGroups] 'Insert', DEFAULT, " & strSecurityGroup

End If

Here's is the code that opens the rad window, notice that I am sending the radwindow control that is used on the page that is calling the procedure.

Public Shared Sub USB_DisplayMessage(ByVal strMessageType As String, ByVal strMessageHeading As String, ByVal strMessage As String, ByVal strMessageSize As String, ByVal strSkin As String, ByVal rwmMessageBox As RadWindowManager)

Dim rwdMessage As New RadWindow

Dim strNavigation As String = "~/Modules/Central/WBF CTL Message Box.aspx?MessageType=" + strMessageType + "&MessageHeading=" + strMessageHeading + "&Message=" + strMessage

rwdMessage.ID = "rwdMessageDetail"

rwdMessage.Skin = strSkin

Select Case strMessageSize

Case "Small"

rwdMessage.Height = "250"

rwdMessage.Width = "400"

Case "Medium"

rwdMessage.Height = "300"

rwdMessage.Width = "400"

End Select

rwdMessage.NavigateUrl = strNavigation

rwmMessageBox.Windows.Add(rwdMessage)

End Sub

So my question is how do I prevent the radwidow from causing a postback?

My second question is regarding the cancelling of the delete event. As in the above scenario I am using the CommandItemTemplate with LinkButtons to perform all the record functions. When the user clicks the delete button I open a radwindow prompting (yes/no buttons) them to confirm the deletion and again this works fine. What I want to be able to do is Cancel the deletion if the user clicks the No button on the rad window. But I can't figure out how to cancel the DeleteCommand if the user clicks the No button to cancel the deletion.

Here is the code that calls the rad window. The code for opening the rad window is the same as listed above.

Private Sub rgvSecurityGroups_DeleteCommand(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) Handles rgvSecurityGroups.DeleteCommand

Dim GridItem As GridDataItem = DirectCast(e.Item, GridDataItem)

Dim intSecurityId As Int16 = GridItem.GetDataKeyValue("SecurityID")

Dim strSecurityGroup As String = GridItem("SecurityGroup").Text

Dim strMessageType As String = Nothing

Dim strMessage As String = Nothing

Dim strMessageHeading As String = Nothing

strMessageType = "Warning"

strMessageHeading = "Deleting " + strSecurityGroup

strMessage = "You have selected to delete security group " + strSecurityGroup & ". This action will cause this group to be deleted from all Users.<br><br>Do you want to continue?"

USB_DisplayMessage(strMessageType, strMessageHeading, strMessage, "Medium", "Black", Me.rwmMessageBox)

Me.SQLDS_SecurityGroups.DeleteCommandType = SqlDataSourceCommandType.Text

Me.SQLDS_SecurityGroups.DeleteCommand = "EXEC [Security].[DSP_SEL-INS-UPD-DEL-SecurityGroups] 'Delete', " & intSecurityId & ", DEFAULT"

End Sub

Thank you for your help.

Window

answered on 08 Feb 2011

4 answers

577 views

Set the SelectedDate to Null

Hi,

I have a little question,

In my application i have a RadDatePicker declared so :

<telerik:RadDatePicker id="myDate" runat="server" Skin="Default">
                <DateInput DateFormat="dd/MM/yyyy"></DateInput>
            </telerik:RadDatePicker>

And i want to make it nullable : for the moment the user can write the date in the inputControl manually , but if he wants to set the Date to Null it's not possible.

In my CodeBehind i have a button which update the date in a database, it takes the code the selectedDate to make this update.

        protected void lnkUpdateDate_Click(object sender, EventArgs e)
        {
              if(myDate.DateInput.SelectedValue != null)
                  Update((DateTime)myDate.DateInput.SelectedValue);
        }

I can't make the difference between an emtpy inputextbox.text value and wrong date in input textbox.text

How can I test if the User has enter an empty string in order to make the update with a null Date ?

Calendar

answered on 08 Feb 2011

2 answers

105 views

Stopping context menu from showing.

Hi,

I need to stop the context menu from displaying in certain situations (client-side of course). I tried using OnContextMenu, but I'm not sure if telerik's context menu supports being stopped.

function OnClientContextMenu(sender, args) {

var appointment = args.get_appointment();

if (appointment)

{

if(appointment.get_attributes().getAttribute("Status") != 2 || appointment.get_attributes().getAttribute("Status") != 3) {

//Stop context menu from showing.

return;

}

else

{

//Show context menu.

menu.show(args.get_domEvent());

}

Thank you for your help.

Daryl

Edit: Method is attached to this event:

OnClientAppointmentContextMenu="OnClientContextMenu"

Scheduler

answered on 08 Feb 2011

3 answers

137 views

Howto rebind RadContextMenu before showing

Hello,

I need a solution to completly rebind the items of the context menu on runtime at server side when user right-clicks.

Items are currently bound with following code. Now I like to bind the items not in page_load, but when user right-clicks, because items are generated in future in a separate business logic on another server and they can change between page_loads.

I have tried a server callback event on client event "OnClientShowing"; it works but unfortunately no changes can be done here. The context menu will not change.

Does anybody find a solution for that?

Thanks in advance

René

<telerik:RadContextMenu ID="RadContextMenu1" runat="server">

<Targets>

<telerik:ContextMenuControlTarget ControlID="TextBox1" />

<telerik:ContextMenuControlTarget ControlID="Label1" />

<telerik:ContextMenuControlTarget ControlID="Image1" />

</Targets>

<Items>

</Items>

</telerik:RadContextMenu>

Private Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

If Not IsPostBack Then

RadContextMenu1.DataTextField = "Text"

RadContextMenu1.DataNavigateUrlField = "Url"

RadContextMenu1.DataFieldID = "ID"

RadContextMenu1.DataFieldParentID = "ParentID"

RadContextMenu1.DataSource = GenerateSiteData()

RadContextMenu1.DataBind()

End If

End Sub

Private Function GenerateSiteData() As ArrayList

Dim siteData As New ArrayList()

siteData.Add(New SiteDataItem(1, Nothing, "All Sites", ""))

siteData.Add(New SiteDataItem(2, 1, "Search Engines", ""))

siteData.Add(New SiteDataItem(3, 1, "News Sites", ""))

siteData.Add(New SiteDataItem(4, 2, "Yahoo", "http://www.yahoo.com"))

siteData.Add(New SiteDataItem(5, 2, "MSN", "http://www.msn.com"))

siteData.Add(New SiteDataItem(6, 2, "Google", "http://www.google.com"))

siteData.Add(New SiteDataItem(7, 3, "CNN", "http://www.cnn.com"))

siteData.Add(New SiteDataItem(8, 3, "BBC", "http://www.bbc.co.uk"))

siteData.Add(New SiteDataItem(9, 3, "FOX", "http://www.foxnews.com"))

Return siteData

End Function

Public Class SiteDataItem

Private _text As String

Private _url As String

Private _id As Integer

Private _parentId As Integer

Public Property Text() As String

Get

Return _text

End Get

Set(ByVal value As String)

_text = value

End Set

End Property

Public Property Url() As String

Get

Return _url

End Get

Set(ByVal value As String)

_url = value

End Set

End Property

Public Property ID() As Integer

Get

Return _id

End Get

Set(ByVal value As Integer)

_id = value

End Set

End Property

Public Property ParentID() As Integer

Get

Return _parentId

End Get

Set(ByVal value As Integer)

_parentId = value

End Set

End Property

Public Sub New(ByVal id As Integer, ByVal parentId As Integer, ByVal text As String, ByVal url As String)

_id = id

_parentId = parentId

_text = text

_url = url

End Sub

End Class

Menu

answered on 08 Feb 2011

7 answers

144 views

Upgrading RadEditor Lite from 4.4.1 to 4.5.6

We were using RadEditor Lite 4.4.1 and worked fine beside getting the error 'RadEditor 7.2.1 trial version. Copyright Telerik © 2002-2007. To remove this message, please purchase a developer version.'

I'm being told that to get rid of that message I need to upgrade to 4.5.6. I followed the guide and upgraded to 4.5.6; however, I received the following error message:

Exception information:
    Exception type: MethodAccessException
    Exception message: Telerik.SharePoint.MOSSRadEditor..ctor()

Request information:
    Request URL:
    Request path: /r/event.aspx
    User host address:
    User:
    Is authenticated: True
    Authentication Type: Negotiate
    Thread account name:

Thread information:
    Thread ID: 9
    Thread account name:
    Is impersonating: False
    Stack trace:    at Rapid.Wcm.Web.UI.FieldControls.Html..ctor()
   at T_1bac81ac_4a77_4224_8229_b52ee8813542.CreateInstance()
   at System.Web.HttpRuntime.FastCreatePublicInstance(Type type)
   at System.Web.UI.ControlBuilder.BuildObjectInternal()
   at System.Web.UI.ControlBuilder.BuildObject()
   at System.Web.UI.ControlBuilder.BuildChildren(Object parentObj)
   at System.Web.UI.TemplateBuilder.InstantiateIn(Control container)
   at System.Web.UI.WebControls.ContentBuilderInternal.InstantiateIn(Control container)
   at System.Web.UI.WebControls.ContentPlaceHolderBuilder.BuildObject()
   at System.Web.UI.ControlBuilder.BuildChildren(Object parentObj)
   at System.Web.UI.TemplateBuilder.InstantiateIn(Control container)
   at System.Web.UI.WebControls.ContentBuilderInternal.InstantiateIn(Control container)
   at System.Web.UI.WebControls.ContentPlaceHolderBuilder.BuildObject()
   at System.Web.UI.ControlBuilder.BuildChildren(Object parentObj)
   at System.Web.UI.TemplateBuilder.InstantiateIn(Control container)
   at System.Web.UI.WebControls.ContentBuilderInternal.InstantiateIn(Control container)
   at System.Web.UI.WebControls.ContentPlaceHolderBuilder.BuildObject()
   at System.Web.UI.ControlBuilder.BuildChildren(Object parentObj)
   at System.Web.UI.ControlBuilder.InitObject(Object obj)
   at System.Web.UI.ControlBuilder.BuildObjectInternal()
   at System.Web.UI.ControlBuilder.BuildObject()
   at System.Web.UI.ControlBuilder.BuildChildren(Object parentObj)
   at System.Web.UI.ControlBuilder.InitObject(Object obj)
   at System.Web.UI.ControlBuilder.BuildObjectInternal()
   at System.Web.UI.ControlBuilder.BuildObject()
   at System.Web.UI.ControlBuilder.BuildChildren(Object parentObj)
   at System.Web.UI.ControlBuilder.InitObject(Object obj)
   at System.Web.UI.FileLevelPageControlBuilder.InitObject(Object obj)
   at System.Web.Compilation.BuildResultNoCompileTemplateControl.FrameworkInitialize(TemplateControl templateControl)
   at System.Web.UI.TemplateControl.FrameworkInitialize()
   at System.Web.UI.UserControl.InitializeAsUserControlInternal()
   at System.Web.UI.MasterPage.CreateMaster(TemplateControl owner, HttpContext context, VirtualPath masterPageFile, IDictionary contentTemplateCollection)
   at System.Web.UI.MasterPage.get_Master()
   at System.Web.UI.MasterPage.ApplyMasterRecursive(MasterPage master, IList appliedMasterFilePaths)
   at System.Web.UI.MasterPage.ApplyMasterRecursive(MasterPage master, IList appliedMasterFilePaths)
   at System.Web.UI.Page.ApplyMasterPage()
   at System.Web.UI.Page.PerformPreInit()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

WebParts for SharePoint

answered on 08 Feb 2011

2 answers

366 views

[Solved] How to set focus for label or page last

Hi,

I am using radgrid in my page. i have asp:button. when i click the button i want to show error message below the button. but i have 5 grid in my page. so i am passing error message to label. but i want set focus the label. how to set this one?

Thanks in advance,
Dhamu.

Grid

answered on 08 Feb 2011

4 answers

199 views

NeedDataSource and paging

Hi,

I´m making a custom Sitefinity control and I have some problems getting the RadListView and RadDataPager to function with the AjaxManagerProxy. I think I need to set the AjaxManager in code behind due to sitefinity, but I can´t get it to work properly. The control loads with 3 paging buttons and if I click on number 2, button number 3 disapears. Also, I don´t think all the rows in the NeedDataSource gets loaded, or at least the paging don´t seem to know about it. Any ideas?

<telerik:RadAjaxManagerProxy ID="RadAjaxManagerProxy1" runat="server">

</telerik:RadAjaxManagerProxy>

<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" Skin="Default">

</telerik:RadAjaxLoadingPanel>

<div class="localEventContainer">

<asp:Panel ID="ListViewPanel" runat="server">

<div class="localEventTop"><asp:Label ID="lblControlTitle" runat="server"></asp:Label></div>

<telerik:RadListView ID="RadListView1" runat="server" AllowPaging="True"

DataKeyNames="EventID" ItemPlaceholderID="EventItemContainer"

Skin="Black" OnDataBound="RadListView1_DataBound"

OnNeedDataSource="RadListView1_NeedDataSource">

<LayoutTemplate>

<asp:Panel ID="EventItemContainer" runat="server"></asp:Panel>

<table cellpadding="0" cellspacing="0" width="100%;" style="clear: both;">

<tr>

<td>

<telerik:RadDataPager ID="RadDataPager1" runat="server" PagedControlID="RadListView1"

PageSize="5">

<Fields>

<telerik:RadDataPagerButtonField FieldType="FirstPrev" />

<telerik:RadDataPagerButtonField FieldType="Numeric" />

<telerik:RadDataPagerButtonField FieldType="NextLast" />

</Fields>

</telerik:RadDataPager>

</td>

</tr>

</table>

</LayoutTemplate>

<ItemTemplate>

<div class="localEventArticleContainer">

<div class="localEventTitle">

<asp:Label ID="lblEventName" runat="server" Text='<%# Eval("Name") %>'></asp:Label>

</div>

<div class="localEventDate">

<asp:Label ID="lblDate" runat="server" Text='<%# Eval("Date", "{0:d}") %>'></asp:Label>

<asp:Label ID="lblTime" runat="server" Text='<%# Eval("Starttime") %>'></asp:Label>

</div>

<div class="localEventText">

<asp:Label ID="lblText" runat="server" Text='<%# Eval("LocationName") %>'></asp:Label>

</div>

<%--<div class="localEventLink">

<asp:HyperLink ID="lblLink" runat="server" Text="Ticnet.se" NavigateUrl='<%# Eval("Url") %>' Target="_blank"></asp:HyperLink>

</div>--%>

</div>

</ItemTemplate>

</telerik:RadListView>

</asp:Panel>

<div class="localEventBottom"></div>

</div>

protected override void OnInit(EventArgs e)

{

base.OnInit(e);

if (this.Page != null && !this.DesignMode)

{

RadAjaxManager ajaxManager = RadAjaxManager.GetCurrent(this.Page);

if (ajaxManager != null)

{

ajaxManager.AjaxSettings.AddAjaxSetting(ListViewPanel, ListViewPanel, RadAjaxLoadingPanel1);

}

lblEventAreaID.Text = EventAreaID.ToString();

}

protected void RadListView1_NeedDataSource(object sender, RadListViewNeedDataSourceEventArgs e)

{

RadListView1.DataSource = ReadData("SELECT e.EventID, e.Name,e.Url, ev.Name AS LocationName, et.Date, et.Starttime FROM mp_Event e INNER JOIN mp_EventLocation ev ON e.EventLocationID = ev.EventLocationID INNER JOIN mp_EventTime et on e.EventID = et.EventID WHERE " + "ev.AreaID = @AreaID AND " + "et.Date >= '" + Today + "' ORDER BY Date ASC");

}

private SqlDataReader ReadData(string query)

{

string connString = ConfigurationManager.ConnectionStrings["UnigolfMPTestConnectionString"].ConnectionString;

conn = new SqlConnection(connString);

conn.Open();

SqlCommand cmd = new SqlCommand(query, conn);

cmd.Parameters.AddWithValue("@AreaID", lblEventAreaID.Text);

reader = cmd.ExecuteReader();

return reader;

}

protected void RadListView1_DataBound(object sender, EventArgs e)

{

reader.Close();

conn.Close();

}

ListView

answered on 08 Feb 2011

1 answer

102 views

Pass param to page

Hi,
How can I pass a parameter to in javascript request of RadAjax and get it in form_Load of page?

Ajax

answered on 08 Feb 2011

13 answers

282 views

How to disable dragging/dropping to first position?

Hi

I am using Telerik:RadListbox in which i have to to show one item as disabled. Now I should always show the disable item at the top and should prompt the user tht disabled item will be the first item always.

Please let me know how to achieve this functionality.

Thanks in advance.

ListBox

answered on 08 Feb 2011

1 answer

151 views

RadContextMenu on MVC Grid

Hi.

I'm using the RadContextMenu with an MVC Grid. I managed to create and display the menu when the grid is right clicked, but what I can't do is hide the menu when I click on another row in the grid. Is there a way to hide the menu when the user clicks outside any of its items?

Thanks in advance.

Menu

answered on 08 Feb 2011