Questions on UI for ASP.NET AJAX Forum

1 answer

151 views

HtmlChart ScatterLineSeries Axis Title Not Showing

Hi,

I'm having a problem with the X and Y axis titles of a ScatterLine Chart. I am binding data to the chart server-side and when I add no series to the chart then the Axis Titles display fine. However, when I add a list of ScatterLineSeries via the PlotArea.Series.AddRange function then the data gets added, but my Axis Titles disappear. I've tried setting the Axis Titles in the ASP markup at design time and via C# code but neither seem to do anything. Note: In the server-side C# code I only tried setting the X-Axis title.

Please see my code blocks below:

public void BindWaterFlowRateChart(List<ScatterLineSeries> WaterFlowRateSeries)

{

WaterFlowRateChart.PlotArea.Series.Clear();

WaterFlowRateChart.PlotArea.Series.AddRange(WaterFlowRateSeries);

WaterFlowRateChart.Legend.Appearance.Visible = true;

WaterFlowRateChart.PlotArea.XAxis.AxisCrossingValue = 0;

WaterFlowRateChart.PlotArea.XAxis.Visible = true;

WaterFlowRateChart.PlotArea.XAxis.TitleAppearance.Text = "Time (min)";

WaterFlowRateChart.PlotArea.XAxis.TitleAppearance.Position = AxisTitlePosition.Center;

WaterFlowRateChart.PlotArea.XAxis.TitleAppearance.Visible = true;

}

<telerik:RadHtmlChart runat="server" ID="WaterFlowRateChart">

<ChartTitle Text="Water Flow Rate Summary" />

<Legend>

<Appearance BackgroundColor="White" Position="Right"></Appearance>

</Legend>

<PlotArea>

<XAxis AxisCrossingValue="0">

<TitleAppearance Text="Time (min)" Position="Center" Visible="True" />

</XAxis>

<YAxis AxisCrossingValue="0">

<TitleAppearance Text="Flow Rate (gal/min)" Position="Center" Visible="True" />

</YAxis>

</PlotArea>

</telerik:RadHtmlChart>

Chart (HTML5)

answered on 06 Feb 2013

4 answers

233 views

[Solved] Default item on postback

Hi guys,

I have a RadComboBox that is bound through EntityDataSource. I also added default item, but I need to be able to access that default item on postback in codebehind, because currently I always get the first item in SelectedValue property, that comes from the collection from EntityDataSource. Basically the control is not mandatory and user does not need to select any value.

Here is the code I have been trying to get working:

<telerik:RadComboBox ID="rcbWarehouse" runat=

"server" DataSourceId="edsWarehouse"

DataValueField="ID" DataTextField="Name" validationGroup="vgOrder">

<DefaultItem runat="server" Value="null" Text="<%$ Resources: DirectDelivery %>" />

</telerik:RadComboBox>

Thank you!

P.

ComboBox

answered on 06 Feb 2013

2 answers

135 views

Select First Row on Sort

Hello,

I am using a grid to load a dataview similar to your WebMail example. I can select the first row and load dataview on page load. I can load dataview on row selection, but I cannot figure out how to load first row on grid sort function. I have tried using pre render which works, but then row selected command does not work. On your WebMail example you use the grid as your parameter value for the link data source of the dataview. I am using a custom dataset from data layer, so cannot use the same way. How can I get similar functionality? If I use a sessin variable it never loads new selection, but if I put selected grid value in textbox on client side, then get value I can load dataview except on sort.

Imports System

Imports System.Data

Imports Message

Imports Telerik.Web.UI

Partial Class Messages

Inherits System.Web.UI.Page

Protected m As New Message

Dim isSelected As Boolean

Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles MyBase.Load

If Not IsPostBack Then

Session("SelectedView") = "Inbox"

RadGrid1.Rebind()

SelectFirstGridRow()

LoadMessage()

Else

LoadMessage()

End If

End Sub

Protected Sub RtvMessageslNodeClick(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadTreeNodeEventArgs) Handles RtvMessages.NodeClick

Select Case e.Node.Text

Case "Inbox"

Session("SelectedView") = "Inbox"

Exit Select

Case "Sent"

Session("SelectedView") = "Sent"

Exit Select

Case "Agency"

Session("SelectedView") = "Deleted"

Exit Select

End Select

RadGrid1.Rebind()

End Sub

Protected Sub RadGrid1_NeedDataSource(ByVal source As Object, ByVal e As Telerik.Web.UI.GridNeedDataSourceEventArgs) Handles RadGrid1.NeedDataSource

Dim listtype As String '= "Inbox"

listtype = RtvMessages.SelectedNode.Text

'testout.Text = listtype

Select Case listtype

Case "Sent"

RadGrid1.MasterTableView.GetColumn("ToUserFullName").Visible = True

RadGrid1.MasterTableView.GetColumn("FromUserFullName").Visible = False

Case "Deleted"

RadGrid1.MasterTableView.GetColumn("FromUserFullName").Visible = True

RadGrid1.MasterTableView.GetColumn("ToUserFullName").Visible = False

Case Else

RadGrid1.MasterTableView.GetColumn("FromUserFullName").Visible = True

RadGrid1.MasterTableView.GetColumn("ToUserFullName").Visible = False

End Select

Dim errors As String = ""

RadGrid1.DataSource = Message.GetMessageList_outlookformat(Membership.GetUser(User.Identity.Name).ProviderUserKey, listtype, errors)

'testout.Text = errors

End Sub

Protected Sub RadGrid1_RowSelected(ByVal source As Object, ByVal e As Telerik.Web.UI.GridNeedDataSourceEventArgs)

Session("SelectedMessage") = RadGrid1.SelectedValue.ToString

LoadMessage()

Dim errors As String = ""

End Sub

Sub Checkisnew(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles RadGrid1.ItemDataBound

If TypeOf e.Item Is Telerik.Web.UI.GridDataItem Then

Dim checkrow As DataRowView

checkrow = e.Item.DataItem

Dim i As New HtmlImage

i = e.Item.FindControl("mailicon")

'Dim i2 As New HtmlImage

'i2 = e.Item.FindControl("replyicon")

If checkrow.Row("IsNew") Then

i.Src = "images/icon-msg-unread.gif"

ElseIf checkrow.Row("RepliedTo") Then

i.Src = "images/icon-msg-reply.gif"

ElseIf checkrow.Row("Forwarded") Then

i.Src = "images/icon-msg-forward.gif"

Else

i.Src = "images/icon-msg-read.gif"

End If

'If checkrow.Row("RepliedTo") Then

' i2.Src = "images/reply.gif"

'Else

' i2.Src = "images/spacer.gif"

' i2.Visible = False

'End If

'i2 = e.Item.FindControl("forwardicon")

'If checkrow.Row("Forwarded") Then

' i2.Src = "images/forward.gif"

' i2.Style.Add("margin-left", "2px")

'Else

' i2.Src = "images/spacer.gif"

' i2.Visible = False

'End If

Dim dt As DateTime = checkrow("DateCreated")

e.Item.Cells(7).Text = dt.ToShortDateString & " " & dt.ToShortTimeString

End If

End Sub

Protected Sub RadGrid1_PreRender(ByVal sender As Object, ByVal e As EventArgs) Handles RadGrid1.PreRender

'If (RadGrid1.MasterTableView.Items.Count > 0) Then

' If RadGrid1.SelectedItems.Count = 0 Then

' RadGrid1.MasterTableView.Items(0).Selected = True

' Session("SelectedMessage") = RadGrid1.SelectedValue.ToString

' LoadMessage()

' Else

' LoadMessage()

' End If

'End If

End Sub

Private Sub SelectFirstGridRow()

Dim firstDataItem As GridDataItem = RadGrid1.Items.OfType(Of GridDataItem).FirstOrDefault()

If firstDataItem IsNot Nothing Then

firstDataItem.Selected = True

If Session("SelectedMessage") Is Nothing Then

Session("SelectedMessage") = RadGrid1.SelectedValue.ToString

End If

End Sub

Sub Deletemessage(ByVal sender As Object, ByVal e As EventArgs)

m.Load(RadGrid1.SelectedValue)

m.MarkForDeletion()

Dim intpage As Integer

intpage = RadGrid1.CurrentPageIndex

RadGrid1.Rebind()

RadGrid1.CurrentPageIndex = intpage

End Sub

Sub LoadMessage()

Dim messageGuidIn As String

Dim guidin As Guid

Dim mv As DetailsView = DetailsView1

Dim ds As DataSet

If RadGrid1.Items.Count > 0 Then

Dim selectedTextBox As RadTextBox = DirectCast(DirectCast(RadToolBar1.FindButtonByCommandName("selectedText"), RadToolBarButton).FindControl("RadTextBox1"), RadTextBox)

If selectedTextBox.Text = String.Empty Then

messageGuidIn = RadGrid1.SelectedValue.ToString

Else

messageGuidIn = selectedTextBox.Text

End If

guidin = New Guid(messageGuidIn)

ds = Message.GetMessage(guidin)

If ds.Tables.Count > 0 Then

m.Load(guidin)

If m.IsNew Then

m.ChangeIsNew()

End If

mv.DataSource = ds

mv.DataBind()

End If

End Sub

Protected Sub RadAjaxManager1_AjaxRequest(sender As Object, e As AjaxRequestEventArgs)

Dim intpage As Integer

intpage = RadGrid1.CurrentPageIndex

RadGrid1.Rebind()

RadGrid1.CurrentPageIndex = intpage

LoadMessage()

End Sub

End Class

Grid

answered on 06 Feb 2013

3 answers

193 views

[Solved] Remove column details table for different parent item

Hello,
My task is to hide certain columns in details table based on a property of master table. I have attached an image of what I'm trying to achieve.

In the attachment

1. for each customer Id ending with I, I will have to hide Freight Column and if it ends with N, I will have to hide date ordered column.
2. I will also have to hide in the details table the add new record button for CustomerIds starting with A.

I appreciate your help if you can point me to the right direction.
Abe

Grid

answered on 06 Feb 2013

4 answers

199 views

How do I resize RadWindow containing RadGrid after paging and fewer rows returned

Hello,

RadControls For ASP.NET AJAX v2009.1.527.35

I have a RadWindow that contains a RadGrid for search results and a RadToolbar with a Search button.

The RadWindow auto-sizes when it is first displayed which is working fine. The RadGrid has a page size of 10 rows, and allows paging. Paging is working fine as well, but when I get to the last page (which has fewer than 10 rows) the RadGrid shrinks and leaves space below it. I want the RadWindow to resize when this happens. I have Javascript code to handle resiging the RadWindow so I would like do this client-side. My problem is I don't know what event to hook into after the RadGrid paging so that I can then call the resize code.

I saw in this form mention of the "OnClientPageLoad" event for the RadGrid but apparently that is only in a newer version of RadControls, and unfortunately upgrading is not an option at this time.

I have attached screenshots showing what is happening.

Picture 1 shows the RadWindow resized correctly, picture 2 shows what happens on the last page when there are fewer rows.

Thanks,
Randall Price
Virginia Tech

Grid

answered on 06 Feb 2013

0 answers

130 views

Is AutoGenerateHierarchy Supported in the Case of Object-Relational Business Objects & WebForms?

I'd like to get a clear answer on whether the AutoGenerateHierarchy property of RadGrid for ASP.NET AJAX (in a .NET WebForms application context) supports object-relational business objects.

The AutoGenerateHierarchy property itself is valid*, but seems to behave differently in the case of WebForms rather than WinForms** applications & I'm finding the Telerik documentation around this ambiguous.

The property description*** reads like the DataSoruce value would have to be of type DataSet for AutoGenerateHierarchy to work. Additionally, all of the ASP.NET AJAX-specific examples I find so far assign a RadGrid DataSource of type DataSet.

However, the DataSource property itself, of course, does not have to be assigned to an object of type DataSet.****

Further, if not supported (combining a non-DataSet DataSource with AutoGenerateHierarchy='True'), shouldn't we expect an error message or warning?
I'm not getting any errors trying to apply this in testing scenarios (just silent failure on any hierarchy). To recreate set - AutoGenerateHierarchy to 'True' in a bare-bones RadGrid where the DataSource is bound to a very simple object graph on Page_Load. Make one of the properties of the top-level object (top parent in the hierarchy) a list of another simple object. This should generate a flat grid (no hierarchy/nesting), but not error out.

Products + Scenario :
RadControls for ASP.NET AJAX
Telerik.Web.UI Version 2012.3.1308.40 (v4.0.30319)
.NET WebForms

References:
* http://www.telerik.com/help/aspnet-ajax/allmembers_t_telerik_web_ui_radgrid.html
**http://www.telerik.com/help/winforms/gridview-hierarchical-grid-object-relational-hierarchy-mode.html
***http://www.telerik.com/help/aspnet-ajax/p_telerik_web_ui_radgrid_autogeneratehierarchy.html
****http://www.telerik.com/help/aspnet-ajax/p_telerik_web_ui_radgrid_datasource.html

Grid

asked on 06 Feb 2013

1 answer

107 views

Export to excel problem?

Hi,

Hi,

I need to export excel.

I am using RadGrid1.MasterTableView.ExportToExcel();

Everything is ok. I can export. But one of my columns is 25-26 digit. For example

My grid is;

Barcode(datatype:text)--------------code(datetype:text)
10105570021112201100001------125
10105570072610201100001------110
10105570020112201100001------165

When I push the button. My excel is coming this type.

Barcode----------------Code
1.01056E+22 ---------125
1.01056E+22----------110
1.01056E+22-----------165

After export. İf I change "format cells" in the excel. My barcode is changing this type

10105570021112200000000
10105570072610200000000
10105570020112200000000

How can ı solve?

p.s.: Sorry my english

Grid

answered on 06 Feb 2013

5 answers

196 views

Dynamic Grouping from Database

Good morning, all.

I have a question regarding the RadGrid's grouping feature. I have an Ajaxified grid binding from a web service, which is allowing grouping and sorting. I also have a separate form that allows users to specify a default grouping level if they so choose. The value is then written to a table in the database.

On the grid's PreRender event, I'm doing a check to see if there are any custom grouping levels specified. If so, I'm able to apply the group to the grid with "RadGrid1.MasterTableView.GroupByExpressions.Add("Group By " & val)" and it renders fine. The issue I'm having is that no other grouping can be applied due to an index error, and this level can't be removed (same index error). I'm only doing the database check the first time the page is loaded so ideally, the user should be able to remove the default group and have it return on the next page load (unless they specify a different default).

As a side note, if the user doesn't have a default group specified, there's no problem with the grid's grouping features at all.

Is there something else I need to do besides add the GroupByExpression in order to enable my dynamic grouping to function with groups dragged to the header row?

Thanks!

/jeff

Grid

answered on 06 Feb 2013

14 answers

397 views

Add New Record Link not appearing for detail table in hierarchial grid

Hi,

I am writing under the assumption that if you add a detail table to a master table, the detail table will have by default, the Add New Record link at the top left. I see this for my master table, but the detail table does not display any Add Record option and I need one. Any clues on what to look for? Thanks.

Grid

answered on 06 Feb 2013

1 answer

55 views

Unwanted message Pops up, upon clicking Image manager after selecting any image from Content

Hello,

Select any image from Content and then Click on Image Manger from Editor , Pop up unwanted Message , i need your help to remove it.

FYI >> Facing this problem across all the browsers.

Regards
Samir

Editor

answered on 06 Feb 2013