Questions on UI for ASP.NET AJAX Forum

1 answer

173 views

Export radgrid and radhtmlchart placed in a div to pdf

HI All,

I am working on asp.net application. Have added multiple radgrid and multiple radhtmlchart programmatically to div. when I try exporting the div (which has multiple radgrid and multiple radhtmlchart) using RadClientExportManager I get only radgrids downloaded as pdf but not radhtmlchart. I googling I found this link https://feedback.telerik.com/aspnet-ajax/1377381-radclientexportmanager-does-not-export-htmlchart-in-multi-page-export-scenarios.
My requirement is exporting multiple radgrid and multiple radhtmlchart in div to pdf.

Can anyone please help me in implementing this requirement?

I have tried using itextsharp and Telerik radclientexportmanager both fail to export to pdf.

ClientExportManager

answered on 18 Feb 2019

2 answers

1.2K+ views

Vertical scrollbar not showing

Hi,
i have a rad grid that for some reason will not show the scrollbars when the grid is full size.
The grid is nested inside a pageview which is 500px wide.
the grid itself is 493px wide.

now if i reduce the grid size down to 350px then the scrollbar shows up. however anything over that it disappears.
I've tried changing all the values of the pageview size and grid size etc but nothing seem to work.

Anyone know how to fix this?

Grid

answered on 16 Feb 2019

7 answers

398 views

Using RadTimePicker in RadGrid how get only time using javascript

I have telerik:2RadTimePicker controls with in grid and I want to get the time using javascript.

one is Start Time other one is End Time i have to check the Validation is Start Time Could be > End Time .

Is there any possibility to do this one on when user enter the End Time it will check the validation and throw a error with alert message,

and how to get time form time picker using javascript and do the validations and i want to show the timepicker with redcolor where the time validation is false

Any Suggestions.,

Regards

SR.

Calendar

answered on 15 Feb 2019

4 answers

187 views

[Solved] RadTextBox Filtering - Weird behavior

Hi,
I have a weird issue with rad listbox filtering. I tried to attach that, but the post didn't allowed me to. I will write the code here.

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

<div>

<telerik:RadScriptManager ID="script1" runat="server"></telerik:RadScriptManager>

<asp:Panel ID="pnlMainFields" runat="server">

<table>

<tr>

<td>

<table>

<tr>

<td>

<h3>Available Fields</h3>

<table>

<tr>

<td>

<asp:CheckBox ID="chkShowAdvanced" runat="server" Text="Show advanced columns" AutoPostBack="true" />

</td>

</tr>

<tr>

<td>

<telerik:RadTextBox ID="tbAvailableFilter" runat="server"

Width="187px"

EmptyMessage="Search ..."

autocomplete="off"

onkeyup="filterList();" />

<telerik:RadButton ID="rbtnClear" runat="server"

Width="22px"

AutoPostBack="false"

OnClientClicking="rbtnClear_OnClientClicking">

<Icon PrimaryIconCssClass="rbClear" />

</telerik:RadButton>

</td>

</tr>

</table>

</td>

<td></td>

<td>

<h3>Selected Fields</h3>

</td>

</tr>

<tr>

<td style="vertical-align:top">

<telerik:RadListBox ID="lstAvailable" runat="server"

Height="250px"

Width="250px"

AllowTransfer="true"

AllowTransferOnDoubleClick="true"

TransferToID="lstSelected"

EnableDragAndDrop="true"

OnClientTransferring="lstAvailable_OnClientTransferring"

ButtonSettings-ShowTransferAll="false" SelectionMode="Multiple" />

</td>

<td style="vertical-align: middle">

<asp:ImageButton ID="btnMoveToSelected" runat="server" ImageUrl="/images/app/Button-Add.jpg" Visible="false" /><br />

<asp:ImageButton ID="btnMoveToAvailable" runat="server" ImageUrl="/images/app/Button-Remove.jpg" Visible="false" />

</td>

<td>

<telerik:RadListBox ID="lstSelected" runat="server"

Height="250px"

Width="250px"

EnableDragAndDrop="true"

AllowReorder="true" />

</td>

</tr>

</table>

</td>

</tr>

<tr>

<td></td>

</tr>

<tr>

<td></td>

</tr>

</table>

</asp:Panel>

</div>

<telerik:RadCodeBlock runat="server">

<script type="text/javascript">

function filterList() {

var listbox = $find("<%= lstAvailable.ClientID%>");

var textbox = $find('<%= tbAvailableFilter.ClientID %>');

clearListEmphasis(listbox);

createMatchingList(listbox, textbox.get_textBoxValue());

}

// Remove emphasis from matching text in ListBox

function clearListEmphasis(listbox) {

var re = new RegExp("</{0,1}em>", "gi");

var items = listbox.get_items();

var itemText;

items.forEach

(

function (item) {

itemText = item.get_text();

item.set_text(itemText.replace(re, ""));

}

)

}

// Emphasize matching text in ListBox and hide non-matching items

function createMatchingList(listbox, filterText) {

if (filterText != "") {

filterText = escapeRegExCharacters(filterText);

var items = listbox.get_items();

var re = new RegExp(filterText, "i");

items.forEach

(

function (item) {

var itemText = item.get_text();

if (itemText.match(re)) {

item.set_text(itemText.replace(re, "<em>" + itemText.match(re) + "</em>"));

item.set_visible(true);

}

else {

item.set_visible(false);

}

)

}

else {

var items = listbox.get_items();

items.forEach

(

function (item) {

item.set_visible(true);

}

)

}

function lstAvailable_OnClientTransferring(sender, eventArgs) {

// Transferred items retain the emphasized text, so it needs to be cleared.

clearListEmphasis(sender);

// Clear the list. Optional, but prevents follow up situation.

clearFilterText();

createMatchingList(sender, "");

}

function rbtnClear_OnClientClicking(sender, eventArgs) {

clearFilterText();

var listbox = $find("<%= lstAvailable.ClientID %>");

clearListEmphasis(listbox);

createMatchingList(listbox, "");

}

// Clears the text from the filter.

function clearFilterText() {

var textbox = $find('<%= tbAvailableFilter.ClientID %>');

textbox.clear();

}

// Escapes RegEx character classes and shorthand characters

function escapeRegExCharacters(text) {

return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");

}

</script>

</telerik:RadCodeBlock>

</form>

The code to populate data is

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

If Not Page.IsPostBack Then

ListAvailableFields()

End If

End Sub

Private Sub ListAvailableFields()

lstAvailable.Items.Clear()

For temp As Integer = 1 To 10

Dim name As String = $"Enabled {temp}"

lstAvailable.Items.Add(New Telerik.Web.UI.RadListBoxItem(name, name))

name = $"Disabled {temp}"

lstAvailable.Items.Add(New Telerik.Web.UI.RadListBoxItem(name, name))

Next

End Sub

Now, type something in the list. For example, type "Enabled" so that it filters all enabled columns.

Once filtered , Click on first search result, HOLD down the shift key and Click on the last item in the grid to select ALL values in the listbox.

Click on the right arrow and it should Copy all the selected values to the right grid.

However, you will notice that it copied over Enabled xx as well as Disabled xx which was not in the search result.

That is a problem, I filtered only "Enabled" but it moved "Disabled" as well.

It seems list is hiding the items only, but when you select multiple using SHIFT key, it includes them. Selecting as many items as you can, using one at a time, will not be an issue.

Any thoughts on this should be appreciated.

Thank you

ListBox

answered on 15 Feb 2019

3 answers

77 views

Event for _dataItem bound?

I have a usercontrol as my edit form, and a property called DataItem that gets bound, one item of which is called ItemID and is bound to a HiddenField.

<asp:HiddenField ID="itemID" runat="server" Visible="false" Value='<%# DataBinder.Eval(Container, "DataItem.ItemID") %>' />

Everything seems good, form renders. I have two controls I call by button click, and in those handlers I can get the value of the HiddenField ItemID to pass its value along in a url.

"&ItemID=" & itemID.Value.ToString() &

The problem comes in when in Page_Load, I want to restrict whether to show these controls or not by the value of ItemID. In Page_Load, itemID.Value is empty, presumably because the page hasn't loaded yet, and while _dataItem seems to exist, it has no fields yet. Is there an event I can tie into to say 'run this after _dataItem has been bound'? There is OnDataBound, but the note on the documentation page says only useful with client side data binding and my solution uses NeedsDataSource.

Grid

answered on 15 Feb 2019

12 answers

435 views

Any way to change the order in which RadGrid renders THEAD, TBODY, and TFOOT?

When I try tabbing though my radgrid, it goes to the header, then the footer, then the actual body of the grid. I believe that this is happening because the tfoot tag is rendered before tbody. Is there any way to change that?

Grid

answered on 14 Feb 2019

3 answers

267 views

Excel Export  

I have a row of totals in my grid. I add a custom footer to my grid where I add a grand total for 3 total columns to the last cell. I add a <br /> and   to all the other cells as shown below.

if (e.Item is GridFooterItem)

{

GridFooterItem footerItem = (GridFooterItem)e.Item;

{

double a= 0;

double b= 0;

double c= 0;

double sumA = 0;

double sumB = 0;

double sumC = 0;

double total = 0;

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

{

a= Double.Parse(item["A"].Text, NumberStyles.Currency);

sumA += a;

b= Double.Parse(item["B"].Text, NumberStyles.Currency);

sumB += b;

c= Double.Parse(item["C"].Text, NumberStyles.Currency);

sumC += c;

}

total = sumA + sumB + sumC;

footerItem["A"].Text = sumA .ToString("c2") + "<br /> ";

footerItem["B"].Text = sumB .ToString("c2") + "<br /> ";

footerItem["C"].Text = sumC.ToString("c2") + "<br />" + total.ToString("c2");

}

on my excel export the blank cell does not show. It seems excel is ignoring the line break and empty cell and just bottom aligning the total for me. See attached.

I even tried the approach in some other threads to replace the <br /> with 
 but that just takes the new line away completely.

protected void grid_GridExporting(object sender, GridExportingArgs e)

{

RadGrid grid = (RadGrid)sender;

e.ExportOutput = e.ExportOutput.Replace("<br

/>", "
");

}

Grid

answered on 14 Feb 2019

32 answers

1.2K+ views

Signature capture with mouse

Is there a Telerik control or does anyone know how to capture a signature in the web browser allowing the user to "draw" it and the submit/save it? In C#?

General Discussions

answered on 14 Feb 2019

16 answers

540 views

[Solved] EditForm Template editedItem FindControl doesn't work

I have a situation similar to this one. Basically, in the edit form I've got a dropdown list to which the user is able to use a popup to select a new value which triggers a postback so the value can be added to the popup and be selected in the popup. In the code-behind, I do

Dim editedItem As GridEditableItem = Nothing

If RadGrid1.MasterTableView.IsItemInserted Then

editedItem = RadGrid1.MasterTableView.GetInsertItem()

End If

If IsNothing(editedItem) Then

editedItem = RadGrid1.EditItems.Item(0)

End If

Dim ddl As DropDownList = CType(editedItem.FindControl("ddlId"), DropDownList)

ddl.Items.Insert(0, newValue)

ddl.SelectedValue = newValue

This works when I am adding a new item. However, if I am editing an existing item, the drop down list is not found; ddl is Nothing and I get a NullReferenceException.

In stepping through the code, in the add case, editedItem has a value of GridEditFormInsertItem with a type of GridEditableItem. However, in the edit case, its value is a GridDataItem with a type of GridEditableItem and its controls appear to be for the regular grid display rather than the edit form.

Any thoughts on how I can get this to work in the edit case?

Grid

answered on 13 Feb 2019

1 answer

196 views

Static header causes Group header to appear with grid lines

I'm currently using R2 2018 SP1 and I'm experiencing a display issue with the grouping header. In my project, I have two grids that are very similar. Both use grouping but one one grid has static headers.

When I use static headers, the grouping header show the column grid lines (i.e. row renders a <TD> for each column). But when I just simply remove theUseStaticHeaders="true" attribute, the grouping row is displayed as expected without the column grid lines (i.e. row renders with as one TD and a colspan attribute). Also note that I'm using the WebBlue theme.

See the attached screenshots displaying both situations.

I was unable to find this specific situation in the current grid demo so I was unable to confirm if this is a problem in the current release.

Thanks

Loy.

Grid