Questions on UI for ASP.NET AJAX Forum

3 answers

272 views

hi ,kindly help me . i have two datepickers (start date ,end date )
i want when the user select start date all end dates less than the start date become disabled likes the range filter date in radgrid

Calendar

answered on 05 Nov 2012

1 answer

70 views

Show todays date in datetimecolumn

I am using a datetimecolumn with filtering in radgrid. How can I show today's date as selected on opening the filter pop up?

General Discussions

answered on 05 Nov 2012

1 answer

146 views

ItemCommand Event

I have a RadGrid that I added an ItemCommand event to. The UI uses Twitter Bootstrap to open a modal window, this window has a textbox and a send button with a command name and command argument. When I click the button, I get :

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.

ASPX:

<telerik:RadGrid ID="MyGrid" OnItemCommand="MyGrid_ItemCommand"

Skin="Sitefinity" AllowSorting="True" AutoGenerateColumns="false" AllowPaging="True"

PageSize="10" runat="server" GridLines="None" Width="100%">

<PagerStyle EnableSEOPaging="true" SEOPagingQueryStringKey="p" Mode="NumericPages">

</PagerStyle>

<MasterTableView>

<Columns>

<telerik:GridTemplateColumn HeaderStyle-Font-Bold="true">

<ItemTemplate>

<%#Eval("Name")%></ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn HeaderStyle-Font-Bold="true" HeaderText="Progress">

<ItemTemplate>

<div class="progress progress-success progress-striped" style="position: relative;

top: 10px;">

<asp:Panel runat="server" ID="progressBar" EnableViewState="false" CssClass="bar progress">

<%#Eval("Complete")%>

/

<%#Eval("TotalCount")%>

</asp:Panel>

</div>

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn HeaderStyle-Font-Bold="true" HeaderText="Manage" ItemStyle-Width="220px">

<ItemTemplate>

<div class="btn-group">

<asp:HyperLink ID="matchLink" CssClass="btn" runat="server" Style="color: #333 !important;"

Text="<i class='icon-check'></i> Match" />

<button class="btn dropdown-toggle" data-toggle="dropdown">

<span class="caret"></span>

</button>

<ul class="dropdown-menu">

<li><a href="#message" data-toggle="modal"><i class='icon-envelope-alt'></i>Send Message</a></li>

<li>

<asp:LinkButton ID="downloadLinks" runat="server" Text="<i class='icon-download-alt'></i> Download Data" /></li>

</ul>

</div>

<div id="message" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel"

aria-hidden="true">

<div class="modal-header">

<button type="button" class="close" data-dismiss="modal" aria-hidden="true">

×</button>

<h3 id="myModalLabel">

Send Message</h3>

</div>

<div class="modal-body">

<asp:TextBox TextMode="MultiLine" ID="messageTextBox" Width="500px" placeholder="Type your message here…"

runat="server" Rows="10"></asp:TextBox>

</div>

<div class="modal-footer">

<button class="btn" data-dismiss="modal" aria-hidden="true">

Cancel</button>

<asp:Button ID="sendMessageButton" CommandName="SendMessage" CommandArgument='<%#Eval("Id")%>'

CssClass="btn btn-primary" Text="Send" runat="server" />

</div>

</ItemTemplate>

</telerik:GridTemplateColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

Code-behind:

protected void MyGrid_ItemCommand(object sender, GridCommandEventArgs e)

{

// code

}

Grid

answered on 05 Nov 2012

3 answers

426 views

Disable the close button?

What is the easiest way to disable or hide the close button on a RadDock?

Thank you!

Dock

answered on 04 Nov 2012

4 answers

127 views

Equivalent to RowDetailsTemplate?

Hi,

I've used the RowDetailsTemplate tag in the Silverlight version of the Grid and can't seem to be able to reproduce this same functionality in .Net AJAX. How could I achieve this? I basically need a panel with some text to show up when someone clicks on an item.

Thanks,

Grid

answered on 03 Nov 2012

1 answer

1.3K+ views

Enable/Disable telerik:GridButtonColumn

Hi
Is it possible to enable/disable icons of telerik:GridButtonColumn in grid rows?
I want to disable "delete icon" for some grid rows through binding expression (or by OnItemDataBound) .
&
Why this type of column does not support binding expression for


CommandArgument

?
Thank you very much.

General Discussions

answered on 03 Nov 2012

3 answers

110 views

sort with template column

I have 3 columns and a template column the gets the percent of the other 3. I want to sort the template column highest to lowest. How can this be done?

Grid

answered on 03 Nov 2012

4 answers

473 views

Basic sample of DropDown in RadGrid

I have been wrestling with this on and off over the last couple days, and have not yet found a good basic sample. I am managing data in a business layer, so what I'm passing into the grid are lists of objects. For simplicity, let's say the two lists are:

The rows are:
ClientId
ClientName
ContactId
ContactName
ContactTypeId

The ContactTypeId column needs to provide a lookup, and on ItemDataBound I am passing a list of:
ContactTypeId
ContactTypeName

So far I have gotten it to almost work in several ways, but there always seems to be some weird behavior. Is there a good sample somewhere with the fields to set to connect up the name and id on the lookup column, and to display the correct choice on view and when the dropdown first enters edit mode. Sorry if I'm missing something obvious, I feel like I'm running into a (very hard) wall.

Cheers.

Grid

answered on 02 Nov 2012

3 answers

322 views

Load On Demand and Exception handling

When an exception occurs during the ItemsRequested event, a RadWindow is displayed to the user with the message "There was an error in the callback."

Instead, I want the exception to bubble up to Application_Error in global.asax, where I have implemented centralized error handling/logging for the web site. This centralized error handling logs the error and redirects the user to a common error page.

I have many other pages in the website where I use RadAjaxManager to perform AJAX-updates. If an exception occurs on the server during one of these AJAX-postbacks, I am able to route the exception through Application_Error by setting web config's customErrors to "On" and setting AllowCustomErrorsRedirect to "true" for the ScriptManager. However, these settings do not seem to have any affect on exceptions that occur during the ItemsRequested event of RadCombo.

I understand that you can call a custom javascript function by setting the "OnClientItemsRequestFailed" property on RadCombo, or that I can swallow the exception by putting a try/catch block around the code in the OnItemsRequested server-side event handler. However, neither of these options meet my needs.

Is there a way to tell RadCombo to allow exceptions that occur during the ItemsRequested event to bubble up to Application_Error?

Thank you.

ComboBox

answered on 02 Nov 2012

2 answers

209 views

DataKeyValue incorrect in RadGrid_ItemCommand event

Hi,

I am trying to use the RadGrid control to implement a table
that has a field indicating if the record is a favourite,
based upon a database bit field. In the RadGrid the field is
an image button.
I am using the RadGrid_ItemCommand event
to toggle the status of the flag in the database for the record
that the user clicked on.
I use the item.GetDataKeyValue("<DataKeyField>") to get the IDs that are
used to identify the record to toggle.

The problem:
The value returned by item.GetDataKeyValue("cli_id") is not
always correct. It is sometimes a value corresponding to a
different row.
I also tried using the CommandArgument property, but that has the
same behavior.

How do I get the correct value for the row that was clicked on

by the user?

Here is the RadGrid_ItemCommand event:

protected void RadGrid1_ItemCommand(object source, GridCommandEventArgs e)

{

Trace.Write("RadGrid1_ItemCommand: starting up...");

if (e.CommandName == "ChangeStatus")

{

GridDataItem item = (GridDataItem)e.Item;

//Get the record IDs from the DataKeyNames

System.Data.DataRowView oRow = (System.Data.DataRowView)item.DataItem;

int iApp_id = Convert.ToInt32(item.GetDataKeyValue("app_id"));

int iCli_id = Convert.ToInt32(item.GetDataKeyValue("cli_id"));

bool bIsFav = Convert.ToBoolean(item.GetDataKeyValue("IsFav"));

Trace.Write("RadGrid1_ItemCommand: iApp_id: " + iApp_id);

Trace.Write("RadGrid1_ItemCommand: cli_id: " + iCli_id);

Trace.Write("RadGrid1_ItemCommand: bIsFav: " + bIsFav);

int itmp = Convert.ToInt32(e.CommandArgument);

//Toggle the Favorite status for that combination

SqlConnection oConn = new SqlConnection(SqlDataSource_GridViewSolutions.ConnectionString);

SqlCommand oCmd = new SqlCommand("toggle_gru_IsFav_Status", oConn);

oCmd.CommandType = System.Data.CommandType.StoredProcedure;

//ToDo make User name dynamic: oCmd.Parameters.Add(this.Page.User.Identity.Name);

oCmd.Parameters.Add(new SqlParameter("strLoginID", "the_user"));

oCmd.Parameters.Add(new SqlParameter("app_id", iApp_id));

oCmd.Parameters.Add(new SqlParameter("cli_id", iCli_id));

try

{

oConn.Open();

oCmd.ExecuteNonQuery();

}

catch (Exception ex1)

{

Response.Write("Error updating favorite status: " + ex1.Message);

}

finally

{

oConn.Close();

oConn.Dispose();

}

RadGrid1.Rebind();

}

Here is the markup for the RadGrid control:

<div class="apps_by_clients">

<asp:SqlDataSource ID="SqlDataSource_GridViewSolutions"

ConnectionString="Data Source=BTSLSQLDEV01;Initial Catalog=GenericStorage;User ID=userid;pwd=xxxxxxxxx"

SelectCommand="EXEC GetAppsWithFavStatus 'the_user'"

runat="server" />

</div>

<telerik:RadGrid ID="RadGrid1" runat="server"

AllowPaging="True"

CellSpacing="0"

DataSourceID="SqlDataSource_GridViewSolutions"

GridLines="None"

PageSize="30"

Skin="Vista"

Width="720px"

AutoGenerateColumns="False"

AllowFilteringByColumn="True"

GroupingSettings-CaseSensitive="false"

onitemcommand="RadGrid1_ItemCommand"

OnPreRender="RadGrid1_PreRender">

<MasterTableView

DataSourceID="SqlDataSource_GridViewSolutions"

GroupsDefaultExpanded="false"

DataKeyNames="app_id, cli_id, IsFav"

>

<CommandItemSettings ExportToPdfText="Export to PDF"></CommandItemSettings>

<RowIndicatorColumn Visible="True" FilterControlAltText="Filter RowIndicator column"></RowIndicatorColumn>

<ExpandCollapseColumn Visible="True" FilterControlAltText="Filter ExpandColumn column"></ExpandCollapseColumn>

<Columns>

<telerik:GridBoundColumn DataField="cli_name"

FilterControlAltText="Filter cli_name column" HeaderText="cli_name"

UniqueName="cli_name" SortExpression="cli_name">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="app_name"

FilterControlAltText="Filter app_name column" HeaderText="app_name"

SortExpression="app_name" UniqueName="app_name">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="app_id" DataType="System.Decimal"

FilterControlAltText="Filter app_id column" HeaderText="app_id" ReadOnly="True"

SortExpression="app_id" UniqueName="app_id">

</telerik:GridBoundColumn>

<telerik:GridTemplateColumn DataField="IsFav"

HeaderText="Favourite?"

UniqueName="IsFav"

AllowFiltering="false"

>

<ItemTemplate>

<asp:ImageButton ID="ImageButton1" runat="server"

ImageUrl='./'

CommandName="ChangeStatus"

CommandArgument='<%# Eval("cli_id") %>'

/>

</ItemTemplate>

</telerik:GridTemplateColumn>

</Columns>

<EditFormSettings>

<EditColumn FilterControlAltText="Filter EditCommandColumn column"></EditColumn>

</EditFormSettings>

<PagerStyle PageButtonCount="5" />

</MasterTableView>

<PagerStyle PageButtonCount="5" />

<FilterMenu EnableImageSprites="False"></FilterMenu>

</telerik:RadGrid>

We are using ASP.Net 4.0 on Windows server 2008
We are using 2012.2.607.40 of the Telerik Radcontrols

Cheers,
Geoff

Grid

answered on 02 Nov 2012