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Dynamically created columns causes problem when column Display = False

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stuart johnstone
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stuart johnstone asked on 09 Apr 2010, 09:04 AM

Dynamically created columns causes problem when column Display = False

We are Telerik v2010 Q1.  When add a column with Dispay = false it hides the column, but there is the a large gap to the right of the grid e.g.

Before

ID

Col 2

Col 3

 

 

 

After

Col 2

Col 3

<< GAP?! >>

 

 

 

 

Extract

            //id column

            col = new GridBoundColumn();

            //TODO: Setting col.Display = false causes a problem

            this.uxResults.Columns.Add(col);

            //now ammend properties

            col.UniqueName = “ID"

            col.Visible = true; //NB Note that Display is set to false!!

            col.DataField = “ID”

            col.HeaderText = "";

            col.FilterListOptions = GridFilterListOptions.VaryByDataType;

            //col.AllowFiltering = true;

            //col.AllowSorting = true;

            //col.ReadOnly = true;

            col.Display = false;

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Iana Tsolova
Telerik team
answered on 14 Apr 2010, 12:45 PM
Hello stuart,

I followed your description in the attached sample, however I was not able to replicate the problem. Can you check it out and let me know what differs in your case?

Best wishes,
Iana
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Stuart Johnstone
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answered on 14 Apr 2010, 02:13 PM
Thanks for your quick reply.
I can confirm that your example has worked...so I have tried to recreate my code as best I can in your example, but I still can't replicate the issue.
I know this is an almost impossible question to answer without being able to see my code, but have you any ideas where I could start to look for this problem.  Steps I have tried so far are:-

1. Turned off all grid events (except request NeedDataSource)
2. The grid doens't add the columns on Page_Load (I know that this has caused problems elsewhere) as there is a method that needs to be called to set various paramters.  I have tried to code around this to see if this could be the cause and as far as I can tell it is not.

Thanks,

Stuart

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Lenny_shp
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answered on 14 Apr 2010, 02:52 PM
Does it make a difference if you put this at the end of col set up?    After col.Display = false;

this.uxResults.Columns.Add(col);
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Stuart Johnstone
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answered on 14 Apr 2010, 04:01 PM
The problem seems to relate the 3 properties....

 

ClientSettings Scrolling-UseStaticHeaders="true"
MasterTableView TableLayout="Fixed"

 

 

 

Scrolling AllowScroll="True"


If either of these are on e.g. True of Fixed then it puts the gap in?

PS Lenny_shp thanks for your suggestion....but sadly that didn't work.

I have included the HTML below (Note uxGrid is just inherited from the RadGrid).

 

                        <cc1:uxGrid runat="server" ID="uxResults" AutoGenerateColumns="False" GridLines="None" 
                            Height="93%" BorderWidth="0px" AllowSorting="True" Style="outline: none" ShowGroupPanel="False" 
                            EnableHeaderContextMenu="True" AllowPaging="True" ShowFooter="True" Width="100%" PageSize="25"   
                            OnRowDrop="uxResults_RowDrop" 
                            OnInsertCommand="uxResults_InsertCommand"   
                            OnUpdateCommand="uxResults_UpdateCommand" 
                            OnItemCreated="uxResults_ItemCreated"   
                            OnItemDataBound="uxResults_ItemDataBound" 
                            OnNeedDataSource="uxResults_NeedDataSource" 
                            OnColumnCreated="uxResults_ColumnCreated">  
                            <HeaderStyle HorizontalAlign="Left" /> 
                            <ItemStyle HorizontalAlign="Left" /> 
                            <AlternatingItemStyle HorizontalAlign="Left" /> 
                            <%--<ClientSettings Scrolling-AllowScroll="True" Scrolling-UseStaticHeaders="true" Selecting-AllowRowSelect="true"--%> 
                            <ClientSettings Scrolling-AllowScroll="True" Selecting-AllowRowSelect="true" 
                                EnablePostBackOnRowClick="false" AllowDragToGroup="true" EnableRowHoverStyle="true" 
                                AllowRowsDragDrop="True">  
                                <Selecting AllowRowSelect="True" /> 
                                <ClientEvents OnRowSelected="onGridRowSelected" /> 
                                <%--<Scrolling AllowScroll="True" UseStaticHeaders="True" />--%> 
 
                                <Scrolling AllowScroll="True" /> 
                            </ClientSettings> 
                            <MasterTableView GroupLoadMode="Client" EditMode="InPlace" CommandItemDisplay="Top">  
                            <%--<MasterTableView TableLayout="Fixed" GroupLoadMode="Client" EditMode="InPlace" CommandItemDisplay="Top">--%> 
                                <%--Direct Edit section--%> 
                                <EditFormSettings ColumnNumber="2" CaptionDataField="Name" CaptionFormatString="Edit details for {0}">  
                                    <FormTableItemStyle Wrap="False"></FormTableItemStyle> 
                                    <FormCaptionStyle CssClass="EditFormHeader"></FormCaptionStyle> 
                                    <FormMainTableStyle GridLines="None" CellSpacing="0" CellPadding="3" BackColor="White" 
                                        Width="100%" /> 
                                    <FormTableStyle CellSpacing="0" CellPadding="2" Height="110px" BackColor="White" /> 
                                    <FormStyle Width="100%" BackColor="#eef2ea"></FormStyle> 
                                    <FormTableAlternatingItemStyle Wrap="False"></FormTableAlternatingItemStyle> 
                                    <EditColumn ButtonType="ImageButton" InsertText="Insert Order" UpdateText="Update record" 
                                        UniqueName="EditCommandColumn1" CancelText="Cancel edit">  
                                    </EditColumn> 
                                    <%--<FormTableButtonRowStyle HorizontalAlign="Right" CssClass="EditFormButtonRow"></FormTableButtonRowStyle>--%> 
                                    <FormTableButtonRowStyle HorizontalAlign="Right"></FormTableButtonRowStyle> 
                                </EditFormSettings> 
                                <%-- --%> 
                                <CommandItemSettings ShowExportToWordButton="false" ShowExportToExcelButton="true" 
                                    ShowExportToCsvButton="true" ShowExportToPdfButton="true" /> 
                            </MasterTableView> 
                            <PagerStyle AlwaysVisible="True" Mode="NextPrevAndNumeric"></PagerStyle> 
                            <SortingSettings SortedBackColor="#C5D9F1"></SortingSettings> 
                        </cc1:uxGrid> 
0
Iana Tsolova
Telerik team
answered on 15 Apr 2010, 08:49 AM
Hello Stuart,

I used the additional information provided in the modified sample attached to this post however I am still unable to observe the undesired behavior.
Therefore it would be great if you can post the code for creating the columns here and specify on which event you are adding them to the grid's columns collection. Also any additional information on when the problem occurs, e.g. on initial load or after particular actions, and in which browser you see it, might help in finding the source of the issue.

Kind regards,
Iana
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Stuart Johnstone
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answered on 16 Apr 2010, 08:38 AM
Hi,

Thanks for your help with the issue.  The grid in on a usercontrol which is dynamically added to the main page on the click of a button..the columns are being created on a Bind() method.  Now I know from other posts that they should be created OnLoad, but I did try this and the outcome was the same - although due to the relative complexity it is difficult to isolate.  The browser is IE 8, and the problem occurs everytime the grid is loaded.

I have managed to work around this issue, by use some server code to get the ID and then using RegisterStatupScript to dynamically generate the required Java code required, but I would still like to know what is causing the issue incase there is an unlying problem with my code.

Thanks,

Stuart
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Iana Tsolova
Telerik team
answered on 19 Apr 2010, 02:10 PM
Hi Stuart,

Could you please open a formal suggort ticket and send me a sample project of you scenario and faced issue?

However I followed your last instruction, I am still unable to replicate it. Please see attached the modified sample.

Greetings,
Iana
the Telerik team

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Iana Tsolova
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Stuart Johnstone
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