Questions on UI for ASP.NET AJAX Forum

1 answer

66 views

Hello,

I am using RAD Grid control,I want to insert the image url using browse button, How can i insert the image url using browse button inside the Rad Grid.

Please advise.

Thanks & Regards
Mani

Grid

answered on 29 Oct 2008

0 answers

91 views

TabStrip ServerSide Only

Hello,
i'm creating a web custom control inerhited from webpart class,
and i would use your tabstrip in it.
Since i don't have the possibilty to put control in design times, i must create scriptmanager, tabstrip, tabs, multipageview etc. at runtime.
I'm having much trouble.
Is there a sample code??
Thanks in advance

TabStrip

asked on 29 Oct 2008

1 answer

296 views

A column named 'CAT' already belongs to this DataTable

Hi,
      I am using ASP.NET AJAX RadGrid 2008.2.826.20.

     I dynmaically create the Grid and GroupByExpressions, and it works fine.

     But as long as I set the aggregate of the GroupByExpression SelectField, like (grpSelFld.Aggregate = GridAggregateFunction.Count), Or  set the group sub totoal, then I got an error below.

      Please help to resolve this issue. Thanks!

         A column named 'CAT' already belongs to this DataTable

    Stack Trace:

[DuplicateNameException: A column named 'CAT' already belongs to this DataTable.] System.Data.DataColumnCollection.RegisterColumnName(String name, DataColumn column, DataTable table) +2020769 System.Data.DataColumnCollection.BaseAdd(DataColumn column) +79 System.Data.DataColumnCollection.AddAt(Int32 index, DataColumn column) +74 System.Data.DataColumnCollection.Add(String columnName, Type type) +48 Telerik.Web.UI.GridDataSetHelper.CreateGroupByTable(DataTable SourceTable, GridTableView view) +304 Telerik.Web.UI.GridEnumerableFromDataView.PerformTransformation() +3605 Telerik.Web.UI.GridEnumerableFromDataView.TransformEnumerable() +18 Telerik.Web.UI.GridTableView.GetEnumerator(Boolean useDataSource, GridEnumerableBase resolvedDataSource, ArrayList dataKeysArray) +105 Telerik.Web.UI.GridTableView.CreateControlHierarchy(Boolean useDataSource) +181 Telerik.Web.UI.GridTableView.CreateChildControls(IEnumerable dataSource, Boolean useDataSource) +539 System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data) +59 System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) +111 System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +29 System.Web.UI.WebControls.DataBoundControl.PerformSelect() +149 Telerik.Web.UI.GridTableView.PerformSelect() +4 System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +70 Telerik.Web.UI.GridTableView.DataBind() +304 Telerik.Web.UI.RadGrid.DataBind() +77 Telerik.Web.UI.RadGrid.AutoDataBind(GridRebindReason rebindReason) +2323 Telerik.Web.UI.RadGrid.OnLoad(EventArgs e) +120 System.Web.UI.Control.LoadRecursive() +47 System.Web.UI.Control.LoadRecursive() +131 System.Web.UI.Control.LoadRecursive() +131 System.Web.UI.Control.LoadRecursive() +131 System.Web.UI.Control.LoadRecursive() +131 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1436

Grid

answered on 29 Oct 2008

1 answer

118 views

How to validate a datetimepicker dynamically!!

Hi I'm binding a radgrid dynamically, hence automatically datetimepicker control created. It works fine, but I need to validate this control through RequiredFieldValidator... I have used a class to create raddatepicker control as below :

using

System;

using

System.Web;

using

Telerik.Web.UI;

namespace

RadDatePickerEditorClass

{

public class RadDatePickerEditor: GridTextColumnEditor

{

private RadDatePicker picker;

protected override void LoadControlsFromContainer()

{

this.picker = this.ContainerControl.Controls[0] as RadDatePicker;

}

public override bool IsInitialized

{

get

{

return this.picker != null;

}

public override string Text

{

get

{

if (picker.DbSelectedDate == null)

{

return string.Empty;

}

return this.picker.DbSelectedDate.ToString();

}

set

{

this.picker.DbSelectedDate = value;

}

protected override void AddControlsToContainer()

{

picker =

new RadDatePicker();

picker.Skin = "DwtDemo";

picker.EnableEmbeddedSkins =

false;

picker.CssClass =

"date-table";

ContainerControl.Controls.Add(picker);

picker.MinDate =

new DateTime(1900,1,1);

}

}

please suggest me how to validate this control...is it possible in this class or in server side .

Thanks in advance

Rajendra

Grid

answered on 29 Oct 2008

1 answer

206 views

slider postback not working properly when oneslider's value is affecting another one

Ok, I am trying to make 3 slider's value dependent on values of other 2, so they always add up to 100.

when i change one slider's value, the other slider's value gets changed too and then it just recursive on postback none stop. Is there anyway to make them not posting back if their value is changed through C# code behind?

    
            <telerik:RadSlider ID="RevenueSlider" runat="server" Skin="Vista" Length="150" SlideStep="2"                     
        
                                OnValueChanged="RadSlider_ValueChanged" AutoPostBack="true" /> 
        
                            <br />             
        
                            <telerik:RadSlider ID="CostSlider" runat="server" Skin="Vista" Length="150" SlideStep="2" 
        
                                OnValueChanged="RadSlider_ValueChanged" AutoPostBack="true"/>            
        
                            <br /> 
        
                            <telerik:RadSlider ID="SatisfactionSlider" runat="server" Skin="Vista" Length="150" SlideStep="2" 
        
                                OnValueChanged="RadSlider_ValueChanged" AutoPostBack="true" />             
        
                            <br /> 
        
            C# code 
        
                public static int revvalue; 
        
                public static int costvalue; 
        
                public static int satvalue; 
        
                protected void Page_Load(object sender, EventArgs e) 
        
                { 
        
                    if (!IsPostBack) 
        
                    { 
        
                        //InitializePerformanceSliders(); 
        
                        revvalue = 100; 
        
                    } 
        
                    RevenueSlider.Value = revvalue; 
        
                    CostSlider.Value = costvalue; 
        
                    SatisfactionSlider.Value = satvalue; 
        
                } 
        
                protected void RadSlider_ValueChanged(object sender, EventArgs e) 
        
                { 
        
                    int difference = 0; 
        
                    switch (((RadSlider)sender).ID) 
        
                    { 
        
                        case "RevenueSlider": 
        
                            if ((revvalue != ((RadSlider)sender).Value) && (revvalue + 1 != ((RadSlider)sender).Value) && (revvalue - 1 != ((RadSlider)sender).Value)) 
        
                            { 
        
                                difference = (revvalue - ((RadSlider)sender).Value) / 2; 
        
                                revvalue = ((RadSlider)sender).Value; 
        
                                if ((costvalue + difference) < 0)  //if any field goes smaller than 0 
        
                                { 
        
                                    satvaluesatvalue = satvalue + difference + (costvalue + difference); 
        
                                    costvalue = 0; 
        
                                } 
        
                                else if ((satvalue + difference) < 0) 
        
                                { 
        
                                    costvaluecostvalue = costvalue + difference + (satvalue + difference); 
        
                                    satvalue = 0; 
        
                                } 
        
                                else 
        
                                { 
        
                                    costvalue += difference; 
        
                                    satvalue += difference; 
        
                                } 
        
                            } 
        
                            break; 
        
                        case "CostSlider": 
        
                            if ((costvalue != ((RadSlider)sender).Value) && (costvalue + 1 != ((RadSlider)sender).Value) && (costvalue - 1 != ((RadSlider)sender).Value)) 
        
                            { 
        
                                difference = (costvalue - ((RadSlider)sender).Value) / 2; 
        
                                costvalue = ((RadSlider)sender).Value; 
        
                                if ((revvalue + difference) < 0) 
        
                                { 
        
                                    satvaluesatvalue = satvalue + difference + (revvalue + difference); 
        
                                    revvalue = 0; 
        
                                } 
        
                                else if ((satvalue + difference) < 0) 
        
                                { 
        
                                    revvaluerevvalue = revvalue + difference + (satvalue + difference); 
        
                                    satvalue = 0; 
        
                                } 
        
                                else 
        
                                { 
        
                                    revvalue += difference; 
        
                                    satvalue += difference; 
        
                                } 
        
                            } 
        
                            break; 
        
                        case "SatisfactionSlider": 
        
                            if ((satvalue != ((RadSlider)sender).Value) && (satvalue + 1 != ((RadSlider)sender).Value) && (satvalue - 1 != ((RadSlider)sender).Value)) 
        
                            { 
        
                                difference = (satvalue - ((RadSlider)sender).Value) / 2; 
        
                                satvalue = ((RadSlider)sender).Value; 
        
                                if ((revvalue + difference) < 0) 
        
                                { 
        
                                    costvaluecostvalue = costvalue + difference + (revvalue + difference); 
        
                                    revvalue = 0; 
        
                                } 
        
                                else if ((costvalue + difference) < 0) 
        
                                { 
        
                                    revvaluerevvalue = revvalue + difference + (costvalue + difference); 
        
                                    costvalue = 0; 
        
                                } 
        
                                else 
        
                                { 
        
                                    revvalue += difference; 
        
                                    costvalue += difference; 
        
                                } 
        
                            } 
        
                            break; 
        
                    } 
        
                }

Slider

answered on 29 Oct 2008

3 answers

96 views

RadAjaxManager with Disabled M$ Timer

I have an M$ timer which by default should not start. To my knowledge the only way to do this is to set the enabled property of the Timer to false. I also have a radajaxmanager which should control the various postbacks for the page, as well as postbacks from the timer.

This creates a problem however, as when I set the enabled property of the timer to false, the radajaxmanager can't see it and throws an error, as well as killing all other ajax calls handled by the radajaxmanager. I was hoping that I could use the radAjaxTimer seems to support such functionality through the autoStart property, however when I add it to my page the control isn' recognised.

Is there any viable solution to this whereby I can make the M$ timer not enabled but still handle its postbacks centrally through a radajaxmanager?

Thanks,
Mark

Ajax

answered on 29 Oct 2008

1 answer

127 views

Script error when paging too quickly

If you check this demo:
http://demos.telerik.com/ASPNET/Prometheus/Grid/Examples/Programming/Slider/DefaultCS.aspx

You can see a script error gets raised if you change pages too quickly using the right arrow on the slider. When the error occurs, the paging stops working until a full page refresh is performed.

Thanks,
Levi

Grid

answered on 29 Oct 2008

1 answer

94 views

radGrid client side binding

Hi,

I am trying to refresh grid at regular interval as follow:

===========================
var myInterval = window.setInterval("refreshRadGrid();",30000);

       function refreshRadGrid()
       {
            var s_param;
            s_param = document.getElementById("ctl00_cphMain_hdGridParam").value;

            PageMethods.cBindGrid(s_param,updateGrid);

       }

        function updateGrid(result)
        {

            var tableView = $find("<%= dgrdBroadcasts.ClientID %>").get_masterTableView();
            var virtualCount = tableView.getCellByColumnUniqueName(tableView.get_dataItems()[0],"total_rows").innerHTML;

            tableView.set_virtualItemCount(virtualCount);
            tableView.set_dataSource(result);
            tableView.dataBind();
        }

===========================

This gives some problem like grid is refreshed but still shows removed record from database. Few columns get blank(I am trying to find more).

Please give input on the issue.

Thanks & Regards,
Vaibhav

Grid

answered on 29 Oct 2008

3 answers

162 views

[Solved] webservice is undefined

Hi,

I am having a web application and not the website.

When I try to call webservice method from javascript, I get "webservice is undefined" error.

What changes are required?

Thanks,
Vaibhav

Grid

answered on 29 Oct 2008

3 answers

120 views

Customize LinkManager.ascx

Hi,

I have found some useful info on using ExternalDialogsPath in order to change the default dialogs like LinkManager.

Unfortunately, I have no idea on how to accomplish the following:

I would like to customize the LinkManager.ascx by adding a fourth tab. This tab will contain a dropdown that will be filled by some records that will be retrieved from a back-end database. When the user selects one of the dropdown items and presses the OK button, the selected value should be converted into an URL like http://website/page.aspx?code=<selected value>

The problem I have is that I do not seem to be able to add server side code to the ascx as merely adding an inline

protected

void Page_Load(object sender, EventArgs e)

does not seem to work.

Can someone please point me into the right direction?

Thanks!

Mark

Editor

answered on 29 Oct 2008