Questions on UI for ASP.NET AJAX Forum

3 answers

108 views

unbound gridview save to database

how to create unbound gridview br telerik grid and save to database

Grid

answered on 10 Nov 2015

3 answers

196 views

User Control with event dynamic creation and ajaxifying it

I have a user control creates a control which includes a RadDateTimePicker. The datetimepicker has a SelectedDateChanged event that fires and runs the code accordingly. Since it is dynamically created, I need to dynamically add it to the RadAjaxManager that already exists. My current approach doesn't seem to work, and I get a full postback.

User Control

public partial class CategoryHolder : System.Web.UI.UserControl

{

public string _category;

public string _mptt;

public DateTime _startDate;

public DateTime _endDate;

public EventHandler startDateChanged;

public EventHandler endDateChanged;

public string Category

{

get

{

return _category;

}

set

{

_category = value;

}

public string MPTT

{

get

{

return _mptt;

}

set

{

_mptt = value;

}

public DateTime StartDate

{

get

{

return _startDate;

}

set

{

_startDate = value;

}

public DateTime EndDate

{

get

{

return _endDate;

}

set

{

_endDate = value;

}

protected void Page_Init(object sender, EventArgs e)

{

}

protected void Page_Load(object sender, EventArgs e)

{

Label lbl = new Label();

HiddenField hf = new HiddenField();

RadDateTimePicker start = new RadDateTimePicker();

RadDateTimePicker end = new RadDateTimePicker();

start.AutoPostBack = true;

start.SelectedDateChanged += new Telerik.Web.UI.Calendar.SelectedDateChangedEventHandler(start_SelectedDateChanged);

start.ClientIDMode = System.Web.UI.ClientIDMode.Static;

start.ID = MPTT + "StartControl";

start.DatePopupButton.Visible = false;

start.TimePopupButton.Visible = false;

end.AutoPostBack = true;

end.SelectedDateChanged += new Telerik.Web.UI.Calendar.SelectedDateChangedEventHandler(end_SelectedDateChanged);

end.ClientIDMode = System.Web.UI.ClientIDMode.Static;

end.ID = MPTT + "EndControl";

end.DatePopupButton.Visible = false;

end.TimePopupButton.Visible = false;

lbl.Text = Category;

hf.Value = MPTT;

start.SelectedDate = StartDate;

end.SelectedDate = EndDate;

this.Controls.Add(lbl);

this.Controls.Add(hf);

this.Controls.Add(start);

this.Controls.Add(end);

}

void start_SelectedDateChanged(object sender, Telerik.Web.UI.Calendar.SelectedDateChangedEventArgs e)

{

if (this.startDateChanged != null)

{

this.startDateChanged(this, e);

}

void end_SelectedDateChanged(object sender, Telerik.Web.UI.Calendar.SelectedDateChangedEventArgs e)

{

if (this.endDateChanged != null)

{

this.endDateChanged(this, e);

}

Test Page using control:

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<title></title>

</head>

<body>

<form id="form1" runat="server">

<telerik:RadScriptManager ID="rsm" runat="server"></telerik:RadScriptManager>

<telerik:RadAjaxManager ID="ram" runat="server"></telerik:RadAjaxManager>

<div>

<asp:PlaceHolder ID="Placeholder" runat="server"></asp:PlaceHolder>

</div>

</form>

</body>

</html>

Test Page C#:

protected void Page_Load(object sender, EventArgs e)

{

CategoryHolder ch = new CategoryHolder();

ch.Category = "Test Category";

ch.MPTT = "dfdfdopfksdopfsdop";

ch.StartDate = DateTime.Today;

ch.EndDate = DateTime.Today.AddDays(5);

ch.startDateChanged += new EventHandler(startPicker_SelectedDateChanged);

RadAjaxManager manager = RadAjaxManager.GetCurrent(Page);

RadAjaxLoadingPanel loadingPanel = new RadAjaxLoadingPanel();

Placeholder.Controls.Add(ch);

manager.AjaxSettings.AddAjaxSetting(ch, ch, loadingPanel);

manager.AjaxSettings.AddAjaxSetting(ch, Placeholder, loadingPanel);

}

void startPicker_SelectedDateChanged(object sender, EventArgs e)

{

//Yay it runs, but on a full postback

}

Ajax

answered on 10 Nov 2015

12 answers

210 views

Bug with EmptyMessage?

Hi,

I'm trying to work out why my code isn't working with the "control_name.EmptyMessage = message" type command from server side code. It works when running in the initial page load but then on ajax calls it doesn't set the fields.

Also in Javascript the set_emptyMessage command doesn't seem to work on a similar basis...Interestingly I can use the set_text command to acheive the same goal.

Is there a known bug with the emptymessage commands or will I need to post some code?

Regards,

Jon

ComboBox

answered on 10 Nov 2015

1 answer

94 views

Why Is key value wronf when editing a radgrid record

I have the following setup in my RadGrid lines in bold contain my database table primary key named LinkAnalysisId

<telerik:GridBoundColumn DataField="LinkAnalysisName" HeaderText="LinkAnalysisName" SortExpression="LinkAnalysisName"
UniqueName="LinkAnalysisName" Display="False">

Other bound columns are not shown when I update a records and try to save I run this C# code

protected void RadGrid1_UpdateCommand(object sender, Web.UI.GridCommandEventArgs e)

{

var editableItem = ((GridEditableItem)e.Item);

var linkAnalysisId = (int)RadGrid1.MasterTableView.Items[0].GetDataKeyValue("LinkAnalysisId");

//retrive entity from the Db

var record = DbContext.LinkAnalysis.Where(n => n.LinkAnalysisId == linkAnalysisId).FirstOrDefault();

if (record != null)

{

//update entity's state

editableItem.UpdateValues(record);

try

{

//save chanages to Db

DbContext.SaveChanges();

}

catch (System.Exception)

{

ShowErrorMessage();

}

The save does not pass the try catch block I have done some trouble shooting and I have found the code

var linkAnalysisId = (int)RadGrid1.MasterTableView.Items[0].GetDataKeyValue("LinkAnalysisId");

which sets the linkAnalysis variable is not getting the correct ID number so it appears I have something wrong. In debug mode when I inspect the values in the var editableItem I am seeing the correct linkAnalysis ID number it is just the code above is not getting the right record what have I done wrong here?

Thanks

Grid

answered on 10 Nov 2015

2 answers

158 views

Read Value of CommandItemTemplate CheckBox

I have a RadGrid with the following CommandItemTemplate items

<asp:Button ID="Diagram" Text="Diagram" runat="server" OnClick="DiagramClicked"></asp:Button>
<asp:CheckBox ID="OrphanCheck" Text="Exclude Orphans" runat="server"/>

When the user clicks the Diagram button, using C# I want to read the value of the Checkbox and build the needed code based on the value of the check box. How can I get the value of that checkbox. I have searched for a solution but all I can find is dealing with a checkbox in a column or row.

Thanks

Perry

Grid

answered on 10 Nov 2015

1 answer

55 views

Password Strength checkere custome style changes.

Hello there,

I have a requirement of Set PasswordStrengthSettings 's TextStrengthDescriptionStyles and TextStrengthDescriptions based on the following condions. how do i acheive it.

if(args.get_strengthScore() > 0 & args.get_strengthScore() <20)

{

Red colour RadStrength Strip and With Text "week"

}

else if(args.get_strengthScore() > 20 & args.get_strengthScore() <40)
{
Yellow colour RadStrength Strip and With Text "Poor"

}

How do i acheive it??

General Discussions

answered on 10 Nov 2015

11 answers

550 views

RAD GRID cell selection Tab KEY or Right Arrow KEY

Hi,
How can i achive Tab or Right Key press and change the selected grid cell to next Cell.
For example i have 10 Column and 10 rows in a grid.
IF i click on first row cell of Colum[0] and press Tab Key or Right Arrow Key the selected cell should move to next cell .Same like Excel

Grid

answered on 10 Nov 2015

1 answer

70 views

Bullet Charts with HtmlChart

Bullet charts are a supported vizualization in Kendo, MVC, and others but do not seem to be supported in HtmlChart, at least not like sparklines are. Is there any work-around for rendering them using HtmlChart?

Thanks,

Terry

Chart (HTML5)

answered on 10 Nov 2015

5 answers

188 views

“RadContext Menus” are not positioned properly when there is horizontal scroll bar available in the page for Telerik version "2014.2.724.45".

Hello Telerik Team,

We have used the UI for ASP.NET AJAX Telerik toolkit in our application. Recently we have upgraded the Telerik version from older version “2012.2.724.35” to the new version “2014.2.724.45”. After upgrading the Telerik version we are facing some functionality issues. We need your help on identifying the fix for following mentioned issue.

Following is the issue which we are facing after upgrading Telerik Version to “2014.2.724.45” i.e. UI for ASP.NET AJAX Q2 2014

Issue: Basically the issue is that, we have used RadContext menu with the Telerik Grid controls if there are few columns visible in the Grid and if we click to open the context menu it displays the menu properly and at the desired position, refer the image “BeforeTelerikUpgrade”.
Now the issue is that when there are more columns visible in the grid then the “Horizontal Scroll bar” appears at the bottom of the page so that we can scroll and view all the grid columns, now when the horizontal scroll bar is visible and if we click on the “Context Menu” then in this case the context menu is displayed but its position is misplaced and it do not appear at item where it should actually be displayed, refer the image “AfterTelerikUpgrade”.

The Context Menus used to display and work as desired in the previous Telerik version “2012.2.724.35” but after we have upgraded the Telerik to the new version “2014.2.724.45” we are facing this issue.

Please can anyone help us to identify the fix for this problem which we are facing?

Thanks in advance,
Riz

Menu

answered on 10 Nov 2015

4 answers

100 views

RadGrid set Edit True forces ArgumentNullException

I have two RadGrids for showing main and detail data.

I wanted to have an asp:FileUpload in the WebUserControl Editform, so I made a button to upload, save the new InsertItem and Redirect to the same page, opening the EditForm for the newly inserted item in RadGrid2 as shown here: http://www.telerik.com/forums/how-to-use-a-hyperlink-column-to-redirect-to-a-new-and-load-details-in-a-radgrid.

Then, on DataBind, the second Grid throws the following error:

[ArgumentNullException: Der Wert darf nicht NULL sein.

Parametername: virtualPath]

System.Web.VirtualPath.Create(String virtualPath, VirtualPathOptions options) +9893937

System.Web.UI.TemplateControl.LoadControl(String virtualPath) +18

Telerik.Web.UI.GridEditFormItem.InitializeUserControlForm(GridColumn[] columns, ControlCollection controls, GridEditFormSettings formSettings) +123

Telerik.Web.UI.GridEditFormItem.InitializeEditForm(GridColumn[] columns) +6009

Telerik.Web.UI.GridEditFormItem.Initialize(GridColumn[] columns) +373

Telerik.Web.UI.GridEditFormItem.SetupItem(Boolean dataBind, Object dataItem, GridColumn[] columns, ControlCollection rows) +340

Telerik.Web.UI.GridItemBuilder.CreateItems(GridGroupingContext group) +1155

Telerik.Web.UI.GridTableView.CreateItems(IEnumerator enumerator, GridColumn[] columns, ControlCollection controls) +211

Telerik.Web.UI.GridTableView.CreateControlHierarchy(Boolean useDataSource) +3172

Telerik.Web.UI.GridTableView.CreateChildControls(IEnumerable dataSource, Boolean useDataSource) +1150

System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data) +67

System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) +128

System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +34

System.Web.UI.WebControls.DataBoundControl.PerformSelect() +149

Telerik.Web.UI.GridTableView.PerformSelect() +38

System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +74

Telerik.Web.UI.GridTableView.DataBind() +392

Telerik.Web.UI.RadGrid.DataBind() +191

Telerik.Web.UI.RadGrid.AutoDataBind(GridRebindReason rebindReason) +4238

Telerik.Web.UI.RadGrid.OnLoad(EventArgs e) +201

System.Web.UI.Control.LoadRecursive() +59

System.Web.UI.Control.LoadRecursive() +131

System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +678

Grid

answered on 10 Nov 2015