Questions on UI for ASP.NET AJAX Forum

4 answers

107 views

Hello,

We are facing this issue currently in chrome browser wherein, whenever the font-size/font-family is changed from dropdown, it is not reflected for the text we enter thereafter rather penultimate font-size/font-family is considered. This works fine whenever we select the text first and apply the changes.

To add to this, we have recently upgraded to Telerik ASP.Net Editor v.2015.2.729.45. This seems to be common issue across community, but none of the proposed solutions worked for us.

Also, same issue is reproduced at http://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx demo page.

Can you please look into this issue?

Thanks,

Muktesh

Editor

answered on 25 Aug 2015

6 answers

3.2K+ views

Firing Javascript function After Postback

Hello

I want to execute a javascript function, after a button click

It's easy to execute javascript and after postback on the same button, but not postback and after javascript !

Please help me !

Anne

Button

answered on 25 Aug 2015

1 answer

109 views

how can i place the usercontrol inside the dock

Hi

i Have a Raddockzone with raddock with in the dock how can i place the usercontrol .

In usercontrol i have a radhtmlchart how can i dynamically create the radchart with in the raddock any suggestions.

Thakns.

Dock

answered on 25 Aug 2015

1 answer

156 views

RadGrid & NeedDatasource Absurd behavior - Viewstate=false & Item/Delete Command Event Handlers

I have wasted almost 20 hours over this.

My grid was not binding data when I used NeedDataSource. When I used Basic DataBinding on PageLoad/PreRender, My Item command event fired, but Delete Command event handler didn't and showed this error:

"" Uncaught Sys.WebForms.PageRequestManagerServerErrorException: Sys.WebForms.PageRequestManagerServerErrorException: Invalid postback or callback argument.
Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation. ""

For that I had to use NeedDataSource as I read on forum that we need to use NeedDataSource for that. When I used NeedDataSource my grid didnt show any data.

My grid is in a RadTabStrip. At first when the page is loaded, the grid tab is not selected. However the NeedDataSource executes & sets DataSource to null because a reuired queryString value is not present on first page load. Then I append a queryString value and press enter, again NeedDataSource gets called & this time binds the grid with the queryString parameter, however the RadTabstrip that contains the grid is still not selected and some other tab is selected on page load. Now when select the tab that contains the grid, NeedDataSource doesnt get called, and there s nothing in place of the grid (The grid is not bound to any data).

I wasted so many office hours on this, but to no avail. I created a separate sample project for you to assess, however the issue did not occur in that sample. And trust me when I say this, I replicated each and everything in that sample, each and every property was exactly the same as was in my initial project, but in the sample the Grid showed data, I even replicated the RadTabStrip process to ensure that the events get called in exactly that same manner.

The Soultion:

Just 5 minutes ago I set MasterTableView's EnableViewState property to false. This solved the problem, Grid gets bond with data, NeedDataSoruce gets called everytime, Delete & Item Command event handler execute just fine. BUT in my sample project, I did not set EnableViewState=false of MasterViewTable tag.

Why wasnt the issue replicated in that project & why is this absurd behavior happening? Too much time wasted for just a petty issue, setting one property made it work in one project, however in another project the issue didnt occur at all. What is the possible reason kindly elaborate. What is the drawback of using EnableViewState = false of masterViewTable other than hitting the DB every time & is there any other way than setting ViewState to false.

Regards,

Zepp.

Grid

answered on 25 Aug 2015

3 answers

97 views

FileExplorer With Encrypted Files

I need the FileExplorer control to handle encrypted files. Since all access to the files needs a encryption/decryption key is there an easy way to accomplish this?

If the only way is to override all the controls functionality is there a same project of overriding everything out there?

FileExplorer

answered on 25 Aug 2015

1 answer

204 views

Working with Negative numbers

I am trying to work with the HTMLChart negative numbers while setting the Min & Max values on the Y axis. Logic works fine with all dollar/percentages whose values are greater than 0 (zero). The X-axis is all the way in the middle and I have implemented the code suggested here.

Any other suggestions on how I can get the X-axis to remain at the bottom even for negative numbers? I have included the code below

<telerik:RadScriptBlock runat="server">

<script>

function BottomXAxisLabels() {

var chart = $find("<%=RadHtmlChart1.ClientID%>").get_kendoWidget();

var axis = $telerik.$.extend(true, {}, chart.options.categoryAxis);

axis.line.visible = false;

chart.setOptions({ categoryAxis: [{}, axis] });

chart.options.valueAxis.axisCrossingValues = [0, -99999999999];

chart.redraw();

}

function onRequestStart(sender, args) {

if (args.get_eventTarget().indexOf("_btnXLSExport") >= 0) {

args.set_enableAjax(false);

}

function OnSeriesClick(args) {

var kendoWidget = args.sender;

alert("You clicked on a series item with value '" + args.value + "' from category '" + args.category + "'.");

}

</script>

</telerik:RadScriptBlock>

<telerik:RadHtmlChart ID="RadHtmlChart1" runat="server" Visible="false" Legend-Appearance-Position="Top" Width="95%">

<ClientEvents OnLoad="BottomXAxisLabels" OnSeriesClick="OnSeriesClick" />

<PlotArea>

<Series>

<telerik:ScatterLineSeries DataFieldY="ReturnedValue" DataFieldX="cycle_Date">

<TooltipsAppearance Color="White" >

</TooltipsAppearance>

<LabelsAppearance Visible="false">

</LabelsAppearance>

</telerik:ScatterLineSeries>

</Series>

<YAxis>

<LabelsAppearance>

<TextStyle Bold="true" />

</LabelsAppearance>

<MinorGridLines Visible="false"></MinorGridLines>

<MajorGridLines Visible="false"></MajorGridLines>

</YAxis>

<XAxis DataLabelsField="cycle_Date" BaseUnit="Years" MajorTickSize="1" >

<LabelsAppearance Visible="true" RotationAngle="90" DataFormatString="Year {0:yyyy}">

<TextStyle Bold="true" />

</LabelsAppearance>

<TitleAppearance Text="Dates">

<TextStyle Bold="true" />

</TitleAppearance>

<MinorGridLines Visible="false"></MinorGridLines>

<MajorGridLines Visible="true"></MajorGridLines>

</XAxis>

</PlotArea>

<ChartTitle>

<Appearance>

<TextStyle Bold="true" />

</Appearance>

</ChartTitle>

<Legend>

<Appearance Visible="true" Position="Bottom"></Appearance>

</Legend>

</telerik:RadHtmlChart>

The min value may be something like -0.0545423. I am attempting to create a buffer to the min value and max value.

Private Sub grdResults_SelectedIndexChanged(sender As Object, e As EventArgs) Handles grdResults.SelectedIndexChanged

For Each item As GridDataItem In grdResults.SelectedItems

Dim strID As String = TryCast(item.FindControl("lblRowField"), Label).Text

Dim strID2 As String = TryCast(item.FindControl("lblRowText"), Label).Text

Dim strID3 As String = TryCast(item.FindControl("lblRowNumber"), Label).Text

Me.RadHtmlChart1.Visible = True

GetData(strID, strID2, strID3)

Next

End Sub

Private Sub GetData(InField As String, InColumnName As String, InRowCount As String)

Try

oConn.Open()

Dim ocmd As New SqlCommand("sp_seTrendTracking", oConn)

ocmd.CommandType = CommandType.StoredProcedure

With ocmd.Parameters

.Add(New SqlParameter("@charter_num", Session("Charter_Num")))

'.Add(New SqlParameter("@charter_num", 95778))

.Add(New SqlParameter("@field", InField))

End With

reader = ocmd.ExecuteReader

If reader.HasRows Then

Dim dt As DataTable = New DataTable()

dt.Load(reader)

RadHtmlChart1.DataSource = dt

RadHtmlChart1.ChartTitle.Text = InColumnName

Dim dr As DataRow

dr = dt.Rows(0)

Dim percentage As Double = 0.1D '10%

Dim currentValue As Double

If InRowCount <= 6 Then

RadHtmlChart1.PlotArea.YAxis.LabelsAppearance.DataFormatString = "{0:c0}"

RadHtmlChart1.PlotArea.CommonTooltipsAppearance.DataFormatString = "{0:c0}"

'Grab the current value in TextBox1

If Double.TryParse(dr("Minvalue"), Globalization.NumberStyles.Number, Nothing, currentValue) Then

'Add 10% of the value to it

currentValue -= dr("Minvalue") * percentage

RadHtmlChart1.PlotArea.YAxis.MinValue = currentValue.ToString

End If

If Double.TryParse(dr("MaxValue"), Globalization.NumberStyles.Number, Nothing, currentValue) Then

'Add 10% of the value to it

currentValue += dr("MaxValue") * percentage

RadHtmlChart1.PlotArea.YAxis.MaxValue = currentValue.ToString

End If

RadHtmlChart1.PlotArea.CommonTooltipsAppearance.DataFormatString = "{1:c0}<br/>{0:MMM yyyy}"

Else

RadHtmlChart1.PlotArea.YAxis.LabelsAppearance.DataFormatString = "{0:p2}"

RadHtmlChart1.PlotArea.CommonTooltipsAppearance.DataFormatString = "{0:p2}"

If Double.TryParse(dr("Minvalue"), Globalization.NumberStyles.Number, Nothing, currentValue) Then

Dim MinValue As Decimal

MinValue = dr("Minvalue")

If dr("MinValue") < 0 Then

'percentage = -1.5D

currentValue += MinValue * percentage

Else

'Add 10% of the value to it

currentValue -= dr("Minvalue") * percentage

End If

RadHtmlChart1.PlotArea.YAxis.MinValue = currentValue

End If

If Double.TryParse(dr("MaxValue"), Globalization.NumberStyles.Number, Nothing, currentValue) Then

'Add 10% of the value to it

currentValue += dr("MaxValue") * percentage

RadHtmlChart1.PlotArea.YAxis.MaxValue = currentValue

End If

RadHtmlChart1.PlotArea.CommonTooltipsAppearance.DataFormatString = "{1:p2}<br/>{0:MMM yyyy}"

End If

RadHtmlChart1.DataBind()

End If

Catch ex As Exception

MyLabel.Text = ex.Message

Finally

oConn.Close()

End Try

End Sub

Chart (HTML5)

answered on 25 Aug 2015

2 answers

164 views

Remove sorting row when grouping

Hi

In my grid, when I used Grouping, how do we remove the first row which it was a sort button. Please see attachment.

This is my code

<telerik:RadGrid ID="RadGrid1" runat="server" AllowMultiRowSelection="true" CssClass="RadGrid RadGrid_Silk" OnItemCommand="itemClickRadGrid" Visible="true" OnItemDataBound="RadGrid1_ItemDataBound" AllowSorting="True" AllowPaging="True" PageSize="100" ShowGroupPanel="True" AutoGenerateColumns="false" AllowFilteringByColumn="false" OnNeedDataSource="RadGrid1_NeedDataSource1"> <MasterTableView GroupLoadMode="Client" TableLayout="Fixed" EnableGroupsExpandAll="false" DataKeyNames="FilingIdentifier" ShowHeader="false"> <GroupByExpressions> <telerik:GridGroupByExpression> <SelectFields> <telerik:GridGroupByField HeaderValueSeparator=" " HeaderText=" " FieldName="Name"></telerik:GridGroupByField> </SelectFields> <GroupByFields> <telerik:GridGroupByField FieldName="Name" SortOrder="None"></telerik:GridGroupByField> </GroupByFields> </telerik:GridGroupByExpression> </GroupByExpressions> <Columns> <telerik:GridBoundColumn DataField="TaxYear" HeaderText="Year" UniqueName="TaxYear"></telerik:GridBoundColumn> <telerik:GridBoundColumn DataField="PreviousFiling" Visible="false" UniqueName="PreviousFiling"></telerik:GridBoundColumn> <telerik:GridBoundColumn DataField="ForwardFiling" Visible="false" UniqueName="ForwardFiling"></telerik:GridBoundColumn> <telerik:GridButtonColumn Text="Launch" UniqueName="lauchrow" CommandName="launchRow" ButtonType="PushButton" HeaderStyle-Width="70px"></telerik:GridButtonColumn> <telerik:GridButtonColumn Text="Add tax year" UniqueName="addTaxYear" CommandName="cf" ButtonType="PushButton" HeaderStyle-Width="110px"></telerik:GridButtonColumn> </Columns> </MasterTableView> <GroupingSettings /> <ClientSettings AllowDragToGroup="false"> <Selecting AllowRowSelect="true" /> </ClientSettings> </telerik:RadGrid>

Thanks

Grid

answered on 24 Aug 2015

6 answers

160 views

node.set_text not working.

    
                        <telerik:RadTreeView ID="rtvQuickshop" 
        
                                             runat="server" 
        
                                             LoadingMessage="Loading ... " 
        
                                             CheckBoxes="true" 
        
                                             PersistLoadOnDemandNodes="false" 
        
                                             EnableViewState="false" 
        
                                             ShowLineImages="false" 
        
                                             EnableEmbeddedScripts="false" 
        
                                             OnNodeDataBound="rtvQuickshop_OnNodeDataBound" 
        
                                             OnClientNodeChecking="NodeChecking" 
        
                                             OnClientNodePopulating="NodePopulating" 
        
                                             Skin="Web20"> 
        
                            <WebServiceSettings Path="~/QuickShop.asmx" Method="GetNodes" /> 
        
                        </telerik:RadTreeView>

I have the following RadTreeView and in the client NodeChecking event I have the following

    
            function NodeChecking(sender, eventArgs) 
        
            { 
        
                var node = eventArgs.get_node(); 
        
                if(node.get_checked()) 
        
                { 
        
                    node.set_text('<img src="/Images/Refreshing.gif" alt="Removing from basket, please wait..." class="qs_refresh" /> <span class="qs_normal">Removing from basket, please wait...</span>'); 
        
                } 
        
                else 
        
                { 
        
                    node.set_text('<img src="/Images/Refreshing.gif" alt="Adding to basket, please wait..." class="qs_refresh" /> <span class="qs_normal">Adding to basket, please wait...</span>'); 
        
                } 
        
            }

But node.set_text does not work??????????????????????????????????????

TreeView

answered on 24 Aug 2015

3 answers

88 views

Question on Z-order with Menu dropdown

I have an ASP form which includes a Menu in the master page. In the attached image you will see it as a mobile-mode control with the "burger", to the left of the page title "LulaVision".

I have a problem with one page based on this master, which includes a databound Panel control.

The menu expands, but contents appear behind the Panel control even after adjusting the z-order settings.

I have pushed the Panel down by 100px so that you can see it expand, yet additional items render BELOW the Panel, which is contrary to the defined layering in z-order.

Looking for suggestions on how to fix.

Using v2015.2.623.45

Menu

answered on 24 Aug 2015

4 answers

105 views

Add custom button to toolbar

Is there a way to add a custom button to the ImageGalllery toolbar that calls a javascript function?

ImageGallery

answered on 24 Aug 2015

	<telerik:RadTreeView ID="rtvQuickshop"
	runat="server"
	LoadingMessage="Loading ... "
	CheckBoxes="true"
	PersistLoadOnDemandNodes="false"
	EnableViewState="false"
	ShowLineImages="false"
	EnableEmbeddedScripts="false"
	OnNodeDataBound="rtvQuickshop_OnNodeDataBound"
	OnClientNodeChecking="NodeChecking"
	OnClientNodePopulating="NodePopulating"
	Skin="Web20">
	<WebServiceSettings Path="~/QuickShop.asmx" Method="GetNodes" />

	</telerik:RadTreeView>

	function NodeChecking(sender, eventArgs)
	{
	var node = eventArgs.get_node();
	if(node.get_checked())
	{
	node.set_text('<img src="/Images/Refreshing.gif" alt="Removing from basket, please wait..." class="qs_refresh" /> <span class="qs_normal">Removing from basket, please wait...</span>');
	}
	else
	{
	node.set_text('<img src="/Images/Refreshing.gif" alt="Adding to basket, please wait..." class="qs_refresh" /> <span class="qs_normal">Adding to basket, please wait...</span>');
	}
	}