Questions on UI for ASP.NET AJAX Forum

2 answers

231 views

Hi,

I have two editbuttons in my gridview, I my form template I have 4 dropdowns.

When I click add new record button all the 4 dropdowns controls should be enable to add a record.

when I click the edit button 1 (Command name is EditEmp) dropdown 1 & dropdown 2 should be enabled and dropdown 3 & dropdown 4 should be disabled to update the record

when I click the edit button 2 (Command name is EditDependent) on the same grid dropdown 1 & dropdown 2 should be disabled and dropdown 3 & dropdown 4 should be enabled to update the record.

Kindly let me know on which event I will do this changes.

thanks,

Ganeshkumar

Grid

answered on 18 Apr 2016

1 answer

605 views

Upload Speed of Multiple Files is slower and slower

I found that when I select many files (e.g. around 400 jpg, 6KB per files) in AsyncUpload, the upload speed would become slower and slower. Initially, the upload speed could have around 2.4KB/s, but it gradually drops to even below 40 Bytes per second as the upload proceeds. It takes me so long time to upload a large amount of files.

Are there any configurations to improve the upload speed of multiple files ?

Thanks!

AsyncUpload

answered on 18 Apr 2016

1 answer

361 views

RadComboBoxes lose values after postback

We have an update panel on the page that contains rows of controls. The user can add additional rows or remove existing ones using a button that performs an Ajax postback. If the user adds additional rows, the values of the RadComboBox remain and life is good. However, if the user removes a row, the combobox value is lost (the items are there, but the selected index is set to -1).

In stepping through the code, I can see that the values are indeed set after Page_Load and Page_PreRender, but when the page is finally displayed, the values have been removed.

I've searched high and low and it appears this is an issue others have experienced as well (http://www.telerik.com/forums/selectedvalue-lost-on-postback-in-dynamically-added-user-controls). Unfortunately, I can't bind the values in Page_Init (as suggested in the post) as I need information from ViewState that isn't available until Page_Load.

All other controls on the update panel retain their value; it's *only* the comboboxes that lose theirs.

Has anyone else experienced this lately and, if so, what was the workaround?

We're using Telerik 2014 Q2 in VS2015 (C#).

ComboBox

answered on 18 Apr 2016

1 answer

127 views

jQuery Selection Inside Window

I cannot seem to use jQuery to select a CheckBoxList inside a RadWindow ContentTemplate.Clicking on the checkboxes does nothing, but if I move the CheckBoxList out of the RadWindow it works fine. I've probably tried a dozen selectors, none work.

<telerik:RadWindow ID="MonthsWindow" runat="server" Skin="Metro" AutoSize="true" MinWidth="575px" MaxWidth="700px" MaxHeight="600px" KeepInScreenBounds="true" Left="100" Top="100" VisibleOnPageLoad="false" Behaviors="Close, Move" RenderMode="auto" DestroyOnClose="true" EnableAjaxSkinRendering="true" ShowContentDuringLoad="true">

<ContentTemplate>

<asp:CheckBoxList ID="CheckBoxList1" runat="Server">

<asp:ListItem Text="Red" Value="red"></asp:ListItem>

<asp:ListItem Text="Blue" Value="blue"></asp:ListItem>

<asp:ListItem Text="Green" Value="green"></asp:ListItem>

</asp:CheckBoxList>

</ContentTemplate>

</telerik:RadWindow>

$("[id*='CheckBoxList1']").click(function () {

//code

});

Window

answered on 18 Apr 2016

5 answers

867 views

window.radWindow undefined?

Hi everyone,

I need your help.
I added Telerik to a old project. radGrid works good, and i can open radWindow.
I have followed this demo http://demos.telerik.com/aspnet-ajax/controls/examples/integration/gridandwindow/defaultcs.aspx?product=window

But for now, i can't close the radWindow, the reason : window.radWindow and window.frameElement.radWindow from GetRadWindow() script function are undefined.

If someone can help me.

My code :
default.aspx

<telerik:RadScriptManager runat="server" EnableViewState="false" ID="RadScriptManager1" />

<telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">

<script type="text/javascript">

function ShowEditForm(id, rowIndex) {

var anneeID = 0;

var typeRessID = 0;

var grid = $find("<%= RadGrid1.ClientID %>");

var rowControl = grid.get_masterTableView().get_dataItems()[rowIndex].get_element();

anneeID = document.getElementById("<%= cboAnnees.ClientID %>").value;

if (document.getElementById("rbResident").checked == true) {

typeRessID = 1;

}

if (document.getElementById("rbExterne").checked == true) {

typeRessID = 2;

}

if (document.getElementById("rbAutre").checked == true) {

typeRessID = 3;

}

grid.get_masterTableView().selectItem(rowControl, true);

window.radopen("UpdateInfo.aspx?ID=" + id + "&TYPERESSID=" + typeRessID + "&ANNEEID=" + anneeID, "UserListDialog");

return false;

}

function ShowInsertForm() {

window.radopen("UpdateRessourceFrameset.aspx", "UserListDialog");

return false;

}

function refreshGrid(arg) {

if (!arg) {

$find("<%= RadAjaxManager1.ClientID %>").ajaxRequest("Rebind");

}

else {

$find("<%= RadAjaxManager1.ClientID %>").ajaxRequest("RebindAndNavigate");

}

</script>

</telerik:RadCodeBlock>

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" OnAjaxRequest="RadAjaxManager1_AjaxRequest">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="RadAjaxManager1">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="RadGrid1"></telerik:AjaxUpdatedControl>

</UpdatedControls>

</telerik:AjaxSetting>

<telerik:AjaxSetting AjaxControlID="RadGrid1">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="RadGrid1"></telerik:AjaxUpdatedControl>

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

<telerik:RadGrid OnItemCreated="RadGrid1_ItemCreated" ID="RadGrid1" runat="server"

AllowPaging="True" EnableViewState="true" Width="97%">

<PagerStyle Mode="NumericPages"></PagerStyle>

<MasterTableView pagesEnableViewState="true" AutoGenerateColumns="False" DataKeyNames="RESS_ID" ShowHeadersWhenNoRecords="false" ClientDataKeyNames="RESS_ID"

Width="100%" PageSize="20">

<Columns>

<telerik:GridBoundColumn DataField="INFO2" HeaderText="Year" ReadOnly="True">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="INFO1" HeaderText="Name"/>

<telerik:GridTemplateColumn UniqueName="TemplateEditColumn">

<ItemTemplate>

<asp:HyperLink ID="EditLink" runat="server" Text="Edit"></asp:HyperLink>

</ItemTemplate>

</telerik:GridTemplateColumn>

</Columns>

<CommandItemTemplate>

<a href="#" onclick="return ShowInsertForm();">No records...</a>

</CommandItemTemplate>

</MasterTableView>

<ClientSettings>

<Selecting AllowRowSelect="false"></Selecting>

</ClientSettings>

</telerik:RadGrid>

<telerik:RadWindowManager ID="RadWindowManager1" EnableViewState="False" runat="server">

<Windows>

<telerik:RadWindow ID="UserListDialog" runat="server" Title="Editer une ressource" Height="500px"

Width="930px" Left="150px" ReloadOnShow="true" ShowContentDuringLoad="false"

Modal="true">

</telerik:RadWindow>

</Windows>

</telerik:RadWindowManager>

default.aspx.vb

Protected Sub RadAjaxManager1_AjaxRequest(ByVal sender As Object, ByVal e As UI.AjaxRequestEventArgs) Handles RadAjaxManager1.AjaxRequest

If e.Argument = "Rebind" Then

RadGrid1.MasterTableView.SortExpressions.Clear()

RadGrid1.MasterTableView.GroupByExpressions.Clear()

RadGrid1.Rebind()

ElseIf e.Argument = "RebindAndNavigate" Then

RadGrid1.MasterTableView.SortExpressions.Clear()

RadGrid1.MasterTableView.GroupByExpressions.Clear()

RadGrid1.MasterTableView.CurrentPageIndex = RadGrid1.MasterTableView.PageCount - 1

RadGrid1.Rebind()

End If

End Sub

Protected Sub RadGrid1_ItemCreated(ByVal sender As Object, ByVal e As GridItemEventArgs)

If TypeOf e.Item Is GridDataItem Then

Dim editLink As HyperLink = DirectCast(e.Item.FindControl("EditLink"), HyperLink)

editLink.Attributes("href") = "#"

editLink.Attributes("onclick") = [String].Format("return ShowEditForm('{0}','{1}');", e.Item.OwnerTableView.DataKeyValues(e.Item.ItemIndex)("RESS_ID"), e.Item.ItemIndex)

End If

End Sub

Updateinfo.aspx

<script type="text/javascript">

function CloseAndRebind(args) {

GetRadWindow().BrowserWindow.refreshGrid(args);

GetRadWindow().close();

}

function GetRadWindow() {

var oWindow = null;

if (window.radWindow) oWindow = window.radWindow;

else if (window.frameElement.radWindow) oWindow = window.frameElement.radWindow;

return oWindow;

}

function CancelEdit() {

window.UserListDialog.close();

}

</script>

....

<asp:ScriptManager id="smUpdateRess" runat="server" />

<asp:DetailsView runat="server" ID="DetailsView1" OnItemUpdating="DetailsView1_ItemUpdating" AutoGenerateEditButton="false" AutoGenerateRows="false" GridLines="None">

<Fields>

<asp:TemplateField>

<EditItemTemplate>

<asp:Button ID="btAddContact" runat="server" Text="Save Contact" CommandName="Update" />

<table border =0 style="width:750px">

<tr>

<td style="height: 31px" colspan=4>

<asp:Label id="lblInfo1" runat="server" Text="Year: "></asp:Label>

<asp:TextBox id="txtInfo2" runat="server" Width="70px" ReadOnly="true" BackColor="LightGray" Text='<%# Container.DataItem("Info2") %>'></asp:TextBox>

<asp:Label id="lblinfo2" runat="server" Text="Name:"></asp:Label>

<asp:TextBox ID="txtInfo1" runat="server" Width="70px" ReadOnly="true" BackColor="LightGray" Text='<%# Container.DataItem("INFO1") %>'></asp:TextBox>

</td>

</tr>

</table>

</EditItemTemplate>

</asp:TemplateField>

</Fields>

</asp:DetailsView>

updateinfo.aspx.vb

on button click

ClientScript.RegisterStartupScript(Page.GetType(), "mykey", "CancelEdit();", True)

But like i said, i get error of null with window.radWindow orwindow.frameElement.radWindow

thanks for your help.

Window

answered on 18 Apr 2016

10 answers

402 views

$find("<%=RadEditor1.ClientID%>") gives error

Hello ,

       I am trying to paste an html in radeditor using

<script type="text/javascript">
     var editor = $find("<%=RadEditor1.ClientID%>"); //get a reference to RadEditor client object
     editor.set_html('test');
</script>

but when i try to find the editor using $find it gives error $find is not defined. plz help.

Regards
maggi

Editor

answered on 18 Apr 2016

1 answer

115 views

RadMenu with StylesManager

Good morning Telerik Team,

In our application, we disabled Telerik stylesheet CDN and enabled stylesheet combined in the stylesmanager. When we open a page with RadMenu control, the menu mess up and we found one webresource throw 500 error. Is there any setting we need set?

/Telerik.Web.UI.WebResource.axd?d=C6CXK_NKqeRQozdHamsVHY4iEh2-WHZ0hR2lZ4lb0QXhxNgPaCKJi-mbpKFkZJFyaLS96jrWiH-vS8d1mRcnCLyJDy45wzq4xT8qZIVpH1iN6XQB3Ms8R0ovsOLLDEf275IHDg2&t=635025536200000000&compress=1&_TSM_CombinedScripts_=%3b%3bTelerik.Web.UI%2c+Version%3d2015.3.930.40%2c+Culture%3dneutral%2c+PublicKeyToken%3d121fae78165ba3d4%3aen-US%3af59d7c8d-045a-4b22-9f9c-e124aae8c608%3a92753c09%3a91f742eb%3aed2942d4%3a8cee9284%3aed057d30%3aa3b7d93f%3a1f65231b%3a7f7626a2%3a9e1572d6%3ae25b4b77%3a45085116

Thanks in advance,

Lan

Menu

answered on 18 Apr 2016

2 answers

215 views

[Solved] InitialPath - Invalid characters in folder name.

Code FileExplorer.InitialPath = "~/Documents"; or on any folder throws message box "Invalid characters in folder name."
This bug was introduced in Telerik.Web.UI_2010_2_826 and later. All previous releases until Telerik.Web.UI_2010_2_817_hotfix.zip was all right in such a functionality.
Check it, please.

Resolution has been found. Thanks.

How to delete this post?

FileExplorer

answered on 18 Apr 2016

6 answers

297 views

RadComboBox in a RadGrid FormTemplate

I'm trying to get a RadComboBox to work in RadGrid FormTemplate.I'm getting this error:

Line: 15
Error: Sys.WebForms.PageRequestManagerServerErrorException: Selection out of range
Parameter name: value

.aspx

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

AllowFilteringByColumn="True"

AllowPaging="True"

AllowSorting="True"

AutoGenerateColumns="False"

DataSourceID="SqlDataSource1"

OnItemDeleted="RadGrid1_ItemDeleted"

OnItemInserted="RadGrid1_ItemInserted"

OnItemUpdated="RadGrid1_ItemUpdated"

GridLines="None"

AllowAutomaticDeletes="True"

AllowAutomaticInserts="True"

AllowAutomaticUpdates="True">

<GroupingSettings CaseSensitive="False"></GroupingSettings>

<ClientSettings AllowColumnsReorder="True">

<Selecting AllowRowSelect="True" />

<Selecting AllowRowSelect="True"></Selecting>

</ClientSettings>

<GroupingSettings CaseSensitive="false" />

<MasterTableView autogeneratecolumns="False" DataKeyNames="id" DataSourceID="SqlDataSource1">

<Columns>

<telerik:GridEditCommandColumn ButtonType="PushButton">

</telerik:GridEditCommandColumn>

<telerik:GridBoundColumn DataField="s_page" DefaultInsertValue="" HeaderText="s_page" UniqueName="s_page" SortExpression="s_page">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="s_doc_title" DefaultInsertValue="" HeaderText="s_doc_title" UniqueName="s_doc_title" SortExpression="s_doc_title">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="s_doc_url" DefaultInsertValue="" HeaderText="s_doc_url" SortExpression="s_doc_url" UniqueName="s_doc_url">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="d_date_uploaded" DataType="System.DateTime" DefaultInsertValue="" HeaderText="d_date_uploaded" SortExpression="d_date_uploaded" UniqueName="d_date_uploaded">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="d_date_displayed" DataType="System.DateTime" DefaultInsertValue="" HeaderText="d_date_displayed" SortExpression="d_date_displayed" UniqueName="d_date_displayed">

</telerik:GridBoundColumn>

<telerik:GridCheckBoxColumn DataField="b_visible" DefaultInsertValue="" HeaderText="b_visible" UniqueName="b_visible" DataType="System.Boolean" SortExpression="b_visible">

</telerik:GridCheckBoxColumn>

</Columns>

<EditFormSettings ColumnNumber="3" CaptionFormatString="Edit details for {0}" CaptionDataField="id" EditColumn-ButtonType="PushButton" EditFormType="Template">

<FormTableItemStyle Wrap="False"></FormTableItemStyle>

<FormTableStyle CellPadding="2" CellSpacing="0" GridLines="Horizontal" CssClass="module" Height="110px" Width="100%"></FormTableStyle>

<FormMainTableStyle CellPadding="3" CellSpacing="0" Width="100%"></FormMainTableStyle>

<FormCaptionStyle CssClass="EditFormHeader"></FormCaptionStyle>

<FormMainTableStyle GridLines="None" CellSpacing="0" CellPadding="3" Width="100%" />

<FormTableStyle GridLines="Horizontal" CellSpacing="0" CellPadding="2" CssClass="module" Height="110px" Width="100%" />

<FormTableAlternatingItemStyle Wrap="False"></FormTableAlternatingItemStyle>

<FormStyle Width="100%" BackColor="#eef2ea"></FormStyle>

<EditColumn UpdateText="Update record" UniqueName="EditCommandColumn1" CancelText="Cancel edit" ButtonType="PushButton">

</EditColumn>

<FormTableButtonRowStyle HorizontalAlign="Left" CssClass="EditFormButtonRow"></FormTableButtonRowStyle>

<FormTemplate>

<table cellspacing="0" cellpadding="0" border="0">

<tr>

<td width="400">

<table cellspacing="0" cellpadding="0" border="0">

<tr>

<td width="5">

</td>

<td width="375" valign="top">

ID:

</td>

<td>

<asp:Label ID="lbl_id" runat="server" Text='<%# Bind("id") %>'></asp:Label>

</td>

</tr>

<tr>

<td width="5">

</td>

<td width="375" valign="top">

Page:

</td>

<td>

<telerik:RadComboBox ID="RadComboBox1" runat="server"

DataSourceID="SqlDataSource3"

DataTextField="MenuText"

DataValueField="MenuId"

SelectedValue='<%# Bind("s_page") %>'

Skin="Vista" AutoPostBack="True">

</telerik:RadComboBox>

</td>

</tr>

<tr>

<td width="5">

</td>

<td width="375" valign="top">

Doc. Title:

</td>

<td>

<asp:TextBox Width="240px" ID="txtbx_title" runat="server" Text='<%# Bind("s_doc_title") %>'></asp:TextBox>

</td>

</tr>

<tr>

<td width="5">

</td>

<td width="375" valign="top">

Date Uploaded:

</td>

<td>

<asp:TextBox Width="240px" ID="TextBox3" runat="server" Text='<%# Bind("d_date_uploaded") %>'></asp:TextBox>

</td>

</tr>

<tr>

<td width="5">

</td>

<td width="375" valign="top">

Date Displayed:

</td>

<td>

<asp:TextBox Width="240px" ID="TextBox4" runat="server" Text='<%# Bind("d_date_displayed") %>'></asp:TextBox>

</td>

</tr>

</table>

</td>

<td width="400">

<table>

<tr>

<td width="5">

</td>

<td width="90" valign="top">

PDF File Name:

</td>

<td>

<asp:TextBox Width="240px" ID="TextBox2" runat="server" Text='<%# Bind("s_doc_url") %>'></asp:TextBox>

<asp:Button ID="btn_pdf_upload" runat="server" Text="Upload PDF File" onclick="btn_pdf_upload_Click" />

</td>

</tr>

</table>

</td>

</tr>

<tr>

<td colspan="2" align="center">

<asp:Button ID="btnUpdate"

Text='<%# (Container is GridEditFormInsertItem) ? "Insert" : "Update" %>' runat="server" CommandName='<%# (Container is GridEditFormInsertItem) ? "PerformInsert" : "Update" %>'>

</asp:Button>

<asp:Button ID="Button2" runat="server" Text="Cancel" CausesValidation="false" CommandName="Cancel"></asp:Button>

</td>

</tr>

</table>

</FormTemplate>

</EditFormSettings>

<PagerStyle Position="TopAndBottom" />

</MasterTableView>

</telerik:RadGrid>

<asp:SqlDataSource ID="SqlDataSource3" runat="server" ConnectionString="<%$ ConnectionStrings:SugarSandsConnectionString %>"

SelectCommand="SELECT [MenuId], [MenuText] FROM [tbl_menu] ORDER BY [MenuText]"></asp:SqlDataSource>

<br />

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:SugarSandsConnectionString %>"

SelectCommand="SELECT * FROM [tbl_pdf_docs] ORDER BY [s_page]" DeleteCommand="DELETE FROM [tbl_pdf_docs] WHERE [id] = @id"

InsertCommand="INSERT INTO [tbl_pdf_docs] ([s_page], [s_doc_title], [s_link_title], [s_doc_url], [d_date_uploaded], [d_date_displayed], [b_visible]) VALUES (@s_page, @s_doc_title, @s_link_title, @s_doc_url, @d_date_uploaded, @d_date_displayed, @b_visible)"

UpdateCommand="UPDATE [tbl_pdf_docs] SET [s_page] = @s_page, [s_doc_title] = @s_doc_title, [s_doc_url] = @s_doc_url, [d_date_uploaded] = @d_date_uploaded, [d_date_displayed] = @d_date_displayed, [b_visible] = @b_visible WHERE [id] = @id">

<DeleteParameters>

<asp:Parameter Name="id" Type="Int32" />

</DeleteParameters>

<InsertParameters>

<asp:Parameter Name="s_page" Type="String" />

<asp:Parameter Name="s_doc_title" Type="String" />

<asp:Parameter Name="s_doc_url" Type="String" />

<asp:Parameter Name="d_date_uploaded" Type="DateTime" />

<asp:Parameter Name="d_date_displayed" Type="DateTime" />

<asp:Parameter Name="b_visible" Type="Boolean" />

</InsertParameters>

<UpdateParameters>

<asp:Parameter Name="s_page" Type="String" />

<asp:Parameter Name="s_doc_title" Type="String" />

<asp:Parameter Name="s_doc_url" Type="String" />

<asp:Parameter Name="d_date_uploaded" Type="DateTime" />

<asp:Parameter Name="d_date_displayed" Type="DateTime" />

<asp:Parameter Name="b_visible" Type="Boolean" />

<asp:Parameter Name="id" Type="Int32" />

</UpdateParameters>

</asp:SqlDataSource>

</td>

</tr>

<telerik:RadAjaxManager runat="server">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="RadGrid1">

</telerik:AjaxSetting>

<telerik:AjaxSetting AjaxControlID="SqlDataSource1">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="RadGrid1" />

<telerik:AjaxUpdatedControl ControlID="SqlDataSource1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

.cs

protected void RadGrid1_ItemUpdated(object source, Telerik.Web.UI.GridUpdatedEventArgs e)

{

if (e.Exception != null)

{

e.KeepInEditMode = true;

e.ExceptionHandled = true;

DisplayMessage(true, "Title " + e.Item.OwnerTableView.DataKeyValues[e.Item.ItemIndex]["s_doc_title"] + " cannot be updated. Reason: " + e.Exception.Message);

}

else

{

DisplayMessage(false, "Title " + e.Item.OwnerTableView.DataKeyValues[e.Item.ItemIndex]["s_doc_title"] + " updated");

}

protected void RadGrid1_ItemInserted(object source, GridInsertedEventArgs e)

{

if (e.Exception != null)

{

e.ExceptionHandled = true;

e.KeepInInsertMode = true;

DisplayMessage(true, "Title cannot be inserted. Reason: " + e.Exception.Message);

}

else

{

DisplayMessage(false, "Title inserted");

}

protected void RadGrid1_ItemDeleted(object source, GridDeletedEventArgs e)

{

if (e.Exception != null)

{

e.ExceptionHandled = true;

DisplayMessage(true, "Title " + e.Item.OwnerTableView.DataKeyValues[e.Item.ItemIndex]["s_doc_title"] + " cannot be deleted. Reason: " + e.Exception.Message);

}

else

{

DisplayMessage(false, "Title " + e.Item.OwnerTableView.DataKeyValues[e.Item.ItemIndex]["s_doc_title"] + " deleted");

}

private void DisplayMessage(bool isError, string text)

{

Label label = (isError) ? this.Label1 : this.Label2;

label.Text = text;

}

private static DataTable tblData = new DataTable();

protected void Page_Load(object sender, System.EventArgs e)

{

}

//protected void RadGrid1_ItemCommand(object source, GridCommandEventArgs e)

//{

// if (e.CommandName == "Update")

// {

// GridEditFormItem gridEditFormItem = (GridEditFormItem)e.Item;

// Label label = (Label)gridEditFormItem.FindControl("lbl_id");

// TextBox textboxPage = (TextBox)gridEditFormItem.FindControl("s_page");

// TextBox textboxDocTitle = (TextBox)gridEditFormItem.FindControl("s_doc_title");

// TextBox textboxLinkTitle = (TextBox)gridEditFormItem.FindControl("s_link_title");

// TextBox textboxDocUrl = (TextBox)gridEditFormItem.FindControl("s_doc_url");

// TextBox textboxDateUp = (TextBox)gridEditFormItem.FindControl("d_date_uploaded");

// TextBox textboxDateDisplay = (TextBox)gridEditFormItem.FindControl("d_date_displayed");

//        SqlDataSource1.UpdateCommand = "UPDATE [tbl_pdf_docs] SET [s_page] = @s_page, [s_doc_title] = @s_doc_title, [s_doc_url] = @s_doc_url, [d_date_uploaded] = @d_date_uploaded, [d_date_displayed] = @d_date_displayed WHERE id= @lbl_id";

// SqlDataSource1.Update();

// }

// if (e.CommandName == RadGrid.InitInsertCommandName) //"Add new" button clicked

// {

//        GridEditCommandColumn editColumn = (GridEditCommandColumn)RadGrid1.MasterTableView.GetColumn("EditCommandColumn");

// editColumn.Visible = false;

// e.Canceled = true;

// e.Item.OwnerTableView.InsertItem();

// GridEditableItem insertedItem = e.Item.OwnerTableView.GetInsertItem();

// TextBox box = insertedItem.FindControl("txt_company_id") as TextBox;

// box.Text = Request.QueryString["id"].ToString();

// }

// else if (e.CommandName == RadGrid.RebindGridCommandName && e.Item.OwnerTableView.IsItemInserted)

// {

// e.Canceled = true;

// }

// else

// {

//        GridEditCommandColumn editColumn = (GridEditCommandColumn)RadGrid1.MasterTableView.GetColumn("EditCommandColumn");

// if (!editColumn.Visible)

// editColumn.Visible = true;

// }

//}

protected void btn_pdf_upload_Click(object sender, EventArgs e)

{

Response.Redirect("pdf_file_upload.aspx");

}

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)

{

//if (e.Item is GridEditFormItem && e.Item.IsInEditMode)

//{

// GridEditFormItem editform = (GridEditFormItem)e.Item;

// RadComboBox ddl_menu_items = (RadComboBox)editform.FindControl("RadComboBox1");

// //Populate the dropdownlist

//    SqlCommand cmd = new SqlCommand("SELECT [MenuId], [MenuText] FROM [tbl_menu] ORDER BY [MenuText]", new SqlConnection(ConfigurationManager.AppSettings["SugarSandsConnectionString"]));

// cmd.Connection.Open();

// SqlDataReader ddlValues;

// ddlValues = cmd.ExecuteReader();

// ddl_menu_items.DataSource = ddlValues;

// ddl_menu_items.DataValueField = "MenuId";

// ddl_menu_items.DataTextField = "MenuText";

// ddl_menu_items.DataBind();

// cmd.Connection.Close();

// cmd.Connection.Dispose();

//}

}

ComboBox

answered on 15 Apr 2016

3 answers

603 views

Expand/Collapse issues using Grouping

We recently upgraded from the ASP.NET Classic controls to the ASP.NET AJAX controls on one of our largest projects. One of our requirements was to maintain current behavior and appearance on all controls. Unfortuantely, we are having a fair amount of trouble with RadGrids.

We are using a RadGrid with server side grouping and expand/collapse functionality enabled. When a user expands/collapses an item, the ItemCommand event is fired which updates a session variable to keep track of which items are expanded. When the user returns to the page, the ItemDataBound method determines whether or not to expand a GridGroupHeaderItem depending on the values stored in the session variable. The good news is that expanded/collapsed states are rendering correctly on subsequent page loads. Unfortunately, if the user then expands or collapses any item, all GridItems that were expanded in the ItemDataBound disappear. The groups that these items belong to are still expanded and items that have been expanded after page load are not affected. Clicking on the group again collapses the group with the missing items, and the next click re-expands it revealing the items that were missing.

Does anyone have any idea why our items are being hidden? I included snippets from the aspx and aspx.cs files below. Specific names and details have been changed to protect the innocent.

...

<telerik:RadAjaxManager runat="server" ID="radAjaxManager" EnableAJAX="true" OnAjaxRequest="RadAjaxManager_AjaxRequest">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="radAjaxManager">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="radGrid1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

...

<telerik:RadGrid ID="radGrid1" runat="server" AllowFilteringByColumn="false" AllowPaging="false" AllowSorting="true" AutoGenerateColumns="false" EnableEmbeddedSkins="false" GroupingEnabled="true"

OnItemCommand="radGrid1_ItemCommand" OnItemDataBound="radGrid1_ItemDataBound" OnNeedDataSource="radGrid1_NeedDataSource"

ShowGroupPanel="false" ShowHeader="true" Skin="XYZ">

<ClientSettings AllowColumnsReorder="true" AllowGroupExpandCollapse="true" AllowDragToGroup="false" ReorderColumnsOnClient="true">

<Resizing AllowColumnResize="false" AllowRowResize="false" EnableRealTimeResize="false" ResizeGridOnColumnResize="false"/>

<ClientEvents OnGridCreated="radGrid1_GridCreated" />

</ClientSettings>

<MasterTableView AllowMultiColumnSorting="false" DataKeyNames="Data1, Data2"

GroupLoadMode="Server" GroupsDefaultExpanded="false" ShowHeader="true" Name="mtvRadGrid1"

NoDetailRecordsText="There are no items that match your request."

NoMasterRecordsText="There are no items that match your request." ShowFooter="false">

<GroupByExpressions>

<telerik:GridGroupByExpression>

<SelectFields>

<telerik:GridGroupByField Aggregate="First" FieldAlias="Group1NameAlias" FieldName="Group1Name"/>

<telerik:GridGroupByField Aggregate="First" FieldAlias="Group1IdAlias" FieldName="Group1Id"/>

</SelectFields>

<GroupByFields>

<telerik:GridGroupByField FieldName="Group1Name" SortOrder="Ascending" />

</GroupByFields>

</telerik:GridGroupByExpression>

<telerik:GridGroupByExpression>

<SelectFields>

<telerik:GridGroupByField Aggregate="First" FieldAlias="Group2NameAlias" FieldName="Group2Name"/>

<telerik:GridGroupByField Aggregate="First" FieldAlias="Group2IdAlias" FieldName="Group2Id"/>

</SelectFields>

<GroupByFields>

<telerik:GridGroupByField FieldName="Group2Name" SortOrder="Ascending" />

</GroupByFields>

</telerik:GridGroupByExpression>

</GroupByExpressions>

<Columns>

<telerik:GridBoundColumn UniqueName="ColumnA" DataField="ColumnA" />

<telerik:GridBoundColumn UniqueName="ColumnB" DataField="ColumnB" />

...

<telerik:GridTemplateColumn UniqueName="link" HeaderText="Link" Groupable="false" SortExpression="sortExpression" HeaderStyle-HorizontalAlign="Left" >

<ItemTemplate>

<asp:HyperLink ID="itemLink" runat="server"></asp:HyperLink>

</ItemTemplate>

</telerik:GridTemplateColumn

>

                ...

</Columns>

</MasterTableView>

</telerik:RadGrid>

protected void radGrid1_ItemDataBound(object source, GridItemEventArgs e)

{

if (e.Item.ItemType == GridItemType.GroupHeader)

{

GridGroupHeaderItem item = (GridGroupHeaderItem)e.Item;

DataRowView groupDataRow = (DataRowView)e.Item.DataItem;

// Telerik does not allow public access to the GroupLevel property of GridItems.

// Unfortunately, this is the only way we have found to determine the group level.

// The GroupIndex is formatted as "Group1_Group2_Group3"

string[] headerItemGroups = e.Item.GroupIndex.Split('_');

string group1Name;

string group2Name;

int group1Id;

int group2Id;

int headerItemGroupLevel = headerItemGroups.Length - 1; // GroupLevel is 0 based

if (headerItemGroupLevel == 0)

{

List<int> expandedGroup1IdList = GetSessionExpandedGroup1IdList();

group1Name = groupDataRow["Group1Name"].ToString();

group1Id = (int)groupDataRow["Group1Id"];

// Telerik does not allow access to DataKeyValues in the GridGroupHeaderItems hence the horrible code below.

// We can add a group by field to the header, grab it on ItemDataBound, and then replace it with meaningful text

item.DataCell.Text = "Group1: " + group1Name;

item.Expanded = expandedGroup1IdList.Contains(group1Id);

}

else if (headerItemGroupLevel == 1)

{

List<int> expandedGroup2IdList = GetSessionExpandedGroup2IdList();

group2Name = groupDataRow["Group2Name"].ToString();

group2Id = (int)groupDataRow["Group2Id"];

// Telerik does not allow access to DataKeyValues in the GridGroupHeaderItems hence the horrible code below.

// We can add a group by field to the header, grab it on ItemDataBound, and then replace it with meaningful text

item.DataCell.Text = "Group2: " + group2Name;

item.Expanded = expandedGroup2IdList.Contains(group2Id);

}

else if (e.Item.ItemType == GridItemType.Item)

{

Class1 dataItem= (Class1)e.Item.DataItem;

HyperLink link = (HyperLink)e.Item.FindControl("itemLink");

if (dataItem.property == ...)

{

link.NavigateUrl = ...

link.Text = ...

}

else if (dataItem.property == ...)

{

link.NavigateUrl = ...

link.Text = ...

}

protected void radGrid1_ItemCommand(object source, GridCommandEventArgs e)

{

if (e.CommandName == RadGrid.ExpandCollapseCommandName)

{

// Telerik does not allow public access to the GroupLevel property of GridItems.

// Unfortunately, this is the only way we have found to determine the group level.

// The GroupIndex is formatted as "Group1_Group2_Group3"

string[] headerItemGroups = e.Item.GroupIndex.Split('_');

string[] dataItemGroups;

int group1Id;

int group2Id;

int headerItemGroupLevel = headerItemGroups.Length - 1; // Group Level is 0 based

bool isExpanded = !e.Item.Expanded; // The item is currently expanding/collapsing so the state is yet to change

foreach (GridDataItem item in e.Item.OwnerTableView.Items)

{

dataItemGroups = item.GroupIndex.Split('_');

// Telerik does not provide access to DataKeyValues from GridGroupHeaderItems

// Loop through all items in the MasterTableView until we find an item that belongs to the group(s) of the clicked item

// Save the appropriate IDs in a session variable to track which items are expanded

if (headerItemGroupLevel == 0 && headerItemGroups[0] == dataItemGroups[0])

{

group1Id = (int)item.GetDataKeyValue("Group1Id");

SaveSessionExpandedGroup1IdList(group1Id, isExpanded);

break;

}

else if (headerItemGroupLevel == 1 && headerItemGroups[0] == dataItemGroups[0] && headerItemGroups[1] == dataItemGroups[1])

{

group2Id = (int)item.GetDataKeyValue("group2Id");

SaveSessionExpandedGroup2IdList(group2Id, isExpanded);

break;

}

Grid

answered on 15 Apr 2016