Setting Resources When Inserting/Editing

[robertw102]

I'm using the built-in advanced edit forms created by the Scheduler control. I am using SqlDataSource controls for my resources and for scheduler insert/update/deletes. I have one resource where I would like the user to be able to enter a custom value, while also being able to select from existing items (i.e. The resource is a list of buyers. I want them to be able to enter a new buyer and save the task with the newly created buyer).

I've made the RadComboBox control for the Buyer list to allow custom text and I handle the AppointmentCommand event checking if an insert/update command was raised and I then check if it's a new buyer and save it. I then add the new buyer to the list and select it.

Like so:

Protected Sub rsTasksNew_AppointmentCommand(ByVal sender As Object, ByVal e As Telerik.Web.UI.AppointmentCommandEventArgs) Handles rsTasksNew.AppointmentCommand
        Try
            'check if insert command
            If e.CommandName = "Insert" Or e.CommandName = "Update" Then
                Dim ddlBuyer As RadComboBox = CType(e.Container.FindControl("ResAssigned-To"), RadComboBox)
                'check for existing buyer with same name and set them as the selected index
                ddlBuyer.SelectedIndex = ddlBuyer.FindItemIndexByText(ddlBuyer.Text.Trim(), True)

                'hold buyer id
                Dim BuyerId As Integer = IIf(ddlBuyer.SelectedIndex > -1, ddlBuyer.SelectedValue, 0)

                'if new buyer being entered
                If BuyerId = 0 Then
                    'save new buyer
                    BuyerId = SaveBuyer(ddlBuyer.Text.Trim(), Session(SessionVariables.Cur_Client_ID))

                    'add buyer to list and set as selected
                    ddlBuyer.Items.Add(New RadComboBoxItem(ddlBuyer.Text, BuyerId))
                    ddlBuyer.SelectedValue = BuyerId
                End If
            End If
        Catch ex As Exception

        End Try
    End Sub

 

This isn't working for some reason. It keeps throwing this error:

Server Error in '/GoRentPro' Application.

Invalid length for a Base-64 char array.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.FormatException: Invalid length for a Base-64 char array.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[FormatException: Invalid length for a Base-64 char array.]
   System.Convert.FromBase64String(String s) +0
   System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +72
   System.Web.UI.LosFormatter.Deserialize(String input) +11
   Telerik.Web.UI.AdvancedTemplate.ExtractResourceValues(IDictionary target) +598
   Telerik.Web.UI.AdvancedTemplate.ExtractValues(Control container) +362
   Telerik.Web.UI.RadScheduler.InsertAppointmentInline() +34
   Telerik.Web.UI.RadScheduler.OnBubbleEvent(Object source, EventArgs args) +326
   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

Version Information: Microsoft .NET Framework Version:2.0.50727.4200; ASP.NET Version:2.0.50727.4016

If you could tell if this even possible to do or if I'm doing it wrong. I am using the latest version of the controls, 2010.3.1314.

Thanks.

[Peter]

Hi Robert,

I recommend you use custom attributes instead of resources for this case. Attached is a demo web site of the needed functionality.


Best wishes,
Peter
the Telerik team

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