Questions on UI for ASP.NET AJAX Forum

7 answers

248 views

Problem after postback when tabs are created at client-side

Dear Support , please advice ...
im creating a page like this telerik demo :
http://demos.telerik.com/aspnet-ajax/window/examples/radwindowandmdi/defaultcs.aspx
using the same javascript code , even whit the
tabStrip.trackChanges();
and
tabStrip.commitChanges();
however i put a .net dropdownlist whith a postback event ( to set a profile that i whant to get in new windows) , and everytime the dropdownlist do the postback AND i created a new tab ( javascript ) , i got an .net error OBJECT REFERENCE NOT SET ....

COULD SOME ONE PLEASE HELP ME ? what more should i so ?

thnks !

NullReferenceException: Referência de objeto não definida para uma instância de um objeto.]
   Telerik.Web.UI.NavigationItem.LoadFromDictionary(IDictionary`2 dictionary) +104
   Telerik.Web.UI.RadTab.LoadFromDictionary(IDictionary`2 dictionary) +19
   Telerik.Web.UI.ClientStateLogPlayer`1.Insert(ClientStateLogEntry entry, ControlItemCollection items, Int32 index) +105
   Telerik.Web.UI.ClientStateLogPlayer`1.Play(ClientStateLogEntry entry) +219
   Telerik.Web.UI.ClientStateLogPlayer`1.Play(IEnumerable`1 clientStateLogEntry) +135
   Telerik.Web.UI.RadTabStrip.LoadLogEntries(TabStripClientState state) +34
   Telerik.Web.UI.RadTabStrip.LoadClientState(TabStripClientState state) +40
   Telerik.Web.UI.RadTabStrip.LoadPostData(String postDataKey, NameValueCollection postCollection) +166
   Telerik.Web.UI.RadDataBoundControl.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection) +13
   System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) +690
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1743

TabStrip

answered on 16 Jan 2014

2 answers

47 views

GroupSize="20"

If i have GroupsDefaultExpanded="false" i Want to schow only 20 Group rows

I can set PageSize="20" but howe set GroupSize="20", Is it possible?

And if i expand the Group and if it is 47 items in the Group i want show all in same page, how?

Grid

answered on 16 Jan 2014

2 answers

45 views

Red line after x words

Hi,
I'm searching for a solution to limit the editor input to 2000 words, instead of blocking of the input, add a red line after 2000 words and the input can be continued. Same when pasting a large text, after pasting a large text, a red line have to be added after 2000 words.

Can you please help me out with this?

Kind regards,
Jelle

Editor

answered on 16 Jan 2014

1 answer

164 views

permanent text in rad textbox

Hi,

I am using radtextbox in aspx page. I have a web service and it returns a string. I want to add these string to my textbox permanently. So when somebody click on my radtextbox they can't delete these string which already in textbox but they add characters on it. How can I do that?

thx.

Input

answered on 16 Jan 2014

0 answers

57 views

Selection not persisting

I have a RadComboBox that gets its data set in the FrameWorkInitialize method like this:

if (!IsPostBack)
{
string firstFilterName = adaptationFilters[0].FilterCategoryName;
var firstFilterGroup = adaptationFilters[0].FilterCategoryChoices.Select(afc => new ComboBoxItem(firstFilterName, afc)).ToList();
firstFilterGroup.Insert(0, new ComboBoxItem(firstFilterName, firstFilterName));
_filterDropDown1.DataSource = firstFilterGroup;
_filterDropDown1.DataBind();
_filterDropDown1.SelectedIndex = 0;
}

(where ComboBoxItem is an internal class that has an object, value and a string, text)

Everything looks good until I pick a value. Well, the SelectedIndexChanged event also fires like it should, but after the postback, item 0 is selected again. This happen both with ViewStateMode enabled and without.

What am I doing wrong?

ComboBox

asked on 16 Jan 2014

2 answers

441 views

Radgrid Align columns seperately on pdf export

Hi.

I would like to align my pdf when exported in such a manner that all string columns are aligned left and numeric columns aligned right. I have tried many different ways with no such result. Below is a code snippet of what I am currently using.

private void ApplyStylesToPDFExport(GridItem item)

{

if (item is GridHeaderItem)

foreach (TableCell cell in item.Cells)

{

cell.Style["font-family"] = "Verdana";

cell.Style["text-align"] = "Left";

cell.Style["font-size"] = "12pt";

}

if (item is GridDataItem)

{

item.Style["font-size"] = "12px";

item.Style["background-color"] = item.ItemType == GridItemType.AlternatingItem ? "#DDDDDD" : "#AAAAAA";

item.Style["horizontal-align"] = "Right";

}

The method is then called in the item_created event. This code is being used to try align headings to left and data to right with not much success.

Any help would be greatly appreciated.

Kind regards.
Leon Havenga

Grid

answered on 16 Jan 2014

3 answers

200 views

Radgrid Export to PDF/Excel makes data hyperlinks

Hi.

As stated in the title, when using the radgrid to export to PDF/Excel, it converts the data into hyperlinks. It however does not do this when exporting to csv and word.

Any help would be greatly appreciated.

Regards.
Leon Havenga

Grid

answered on 16 Jan 2014

3 answers

1.6K+ views

Hide/display RadGrid columns on pre-render

I'm trying to hide/show different columns on a nested rad grid based on a flag in the pre-render event but they are all displaying

These are my grid columns:

<telerik:GridBoundColumn UniqueName="LocalDeanery" ReadOnly="true" DataField="localdeanery" HeaderText="Local Deanery" SortExpression="localdeanery"

HtmlEncode="false" >

</telerik:GridBoundColumn>

<telerik:GridTemplateColumn UniqueName="Sector2013" HeaderText="Sector" SortExpression="hasBeenHeld desc,Sector" AllowFiltering="false" >

<ItemTemplate>

<asp:Label ID="Label2" runat="server"

Text='<%# Eval("Sector").ToString() + " (" + Eval("PrefRank").ToString() + ") " + (Eval("conditional").ToString()==""?"":"Conditional")%>'

Visible='<%# Eval("OfferId").ToString()!="" %>' />

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridBoundColumn UniqueName="Region" ReadOnly="true" DataField="tRegion" HeaderText="Region" SortExpression="tRegion"

HtmlEncode="false">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn UniqueName="Subregion" ReadOnly="true" DataField="tSubRegion" HeaderText="Sub-Region" SortExpression="tSubRegion"

HtmlEncode="false" >

</telerik:GridBoundColumn>

<telerik:GridBoundColumn UniqueName="Sector2014" ReadOnly="true" DataField="tSector" HeaderText="Sector" SortExpression="tSector"

HtmlEncode="false" >

</telerik:GridBoundColumn>

and my code in the pre-render

protected void RadGrid1_PreRender(object sender, EventArgs e)

{

RadGrid od = (RadGrid)RadGrid1.MasterTableView.Items[0].ChildItem.FindControl("OfferDataDetail");

Label ry = (Label)RadGrid1.MasterTableView.Items[0].ChildItem.FindControl("LblRoundYear");

int RoundYear = 2014;

if (ry != null) RoundYear = int.Parse(ry.Text);

//display for 2013

od.Columns.FindByUniqueName("LocalDeanery").Visible = (RoundYear == 2013);

od.Columns.FindByUniqueName("Sector2013").Visible = (RoundYear == 2013);

//display for 2014

od.Columns.FindByUniqueName("Region").Visible = (RoundYear == 2014);

od.Columns.FindByUniqueName("Subregion").Visible = (RoundYear == 2014);

od.Columns.FindByUniqueName("Sector2014").Visible = (RoundYear == 2014);

od.Rebind();

}

The lines to hide/show the columns is being hit but they are still displaying, is there something else I should be doing?
thanks

Grid

answered on 16 Jan 2014

2 answers

293 views

Autogenerate Columns Header Text Changes

Is there any way alter the Column Header Text when auto-generating the columns in a RadGrid?

Thanks,
Mark

Grid

answered on 16 Jan 2014

3 answers

72 views

TabStrip Wizard - UserControls

hi, i have to get de DataFieldValue of a RadComboBox or RadList, but i can´t, i am using the Rad TabStrip Wizard Demo with ascx´s but i only can to get the Text property of a RadComboBox Selected Item like Demo, can you help me!

thanks

TabStrip

answered on 16 Jan 2014