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The empty DataRange can NOT be exported to PDF

any solution??

Hi,

Currently empty data ranges are not displayed in reports. You can set DataRange.Repeat to 1 for the data range to force it to have one instance.

Let me know if this helps.

Regards,
Meppy

but I wanna to control the datarange to display or not by condition.

any solution?

Try setting DataRange.Repeat to 1 for the empty data ranges that you want to be visible. Make sure that DataRange.DataSource is set to null in this case. You can also set Repeat in the QueryDetails event handler for nested data ranges. In this case set QueryDetailsEventArgs.Details to null.

Regards,
Meppy

Meppy wrote on May 15^th, 2013 at 5:33am:

Hi,

This still display the DataRange, but I wanna to control the DataRange invisible.

any solution?

Can you provide me with a sample with your report and specify which data ranges in this report you want to show or hide?

Regards,
Meppy

Meppy wrote on May 15^th, 2013 at 8:12am:

Can you provide me with a sample with your report and specify which data ranges in this report you want to show or hide?

Regards,
Meppy

Hi, the xaml sample code below:

Code (html):

<r:DataRange DataSource="{Binding QuestionTable}" Size="100%,100">
            <r:DataRange.ItemTemplate >
                  <DataTemplate >
                     <r:ItemContainer >
                        <r:DataRange Name="AnswerList" Location="0%,60" Size="100%,20">
                              <r:DataRange.ItemTemplate>
                                 <DataTemplate>
                                    <r:ItemContainer>
                                          <r:Label Location="0%,0" Size="30%,20" Background="{Binding QTitle}" BorderBrush="#ACE6EF" BorderThickness="1,0,1,1" Padding="5,0,0,0" Text="[SID]" />
                                          <r:Label Location="30%,0" Size="30%,20" Background="{Binding QTitle}" BorderBrush="#ACE6EF" BorderThickness="0,0,1,1" Padding="5,0,0,0" Text="[SName]"/>
                                          <r:Label Location="60%,0" Size="40%,20" Background="{Binding QTitle}" BorderBrush="#ACE6EF" BorderThickness="0,0,1,1" Padding="5,0,0,0" Text="[SReply]"/>
                                    </r:ItemContainer>
                                 </DataTemplate>
                              </r:DataRange.ItemTemplate>
                        </r:DataRange>

                        <r:DataRange Name="EliminationList" Location="0%,100" Size="100%,20" >
                              <r:DataRange.HeaderTemplate>
                                 <DataTemplate>
                                    <r:ItemContainer Size="100%,20">
                                          
                                          <r:Label Location="0%,0" Size="100%,20" Background="#B8DAE3" BorderBrush="#ACE6EF" BorderThickness="1,0,0,0" Padding="5,0,0,0" Text="Elimination List" FontSize="14" />
                                    </r:ItemContainer>
                                 </DataTemplate>
                              </r:DataRange.HeaderTemplate>
                              <r:DataRange.ItemTemplate>
                                 <DataTemplate>
                                    <r:ItemContainer>
                                          <r:Label Location="0%,0" Size="100%,20" BorderBrush="#ACE6EF" BorderThickness="1,1,1,0" Padding="5,0,0,0" Text="[SName]"/>
                                    </r:ItemContainer>
                                 </DataTemplate>
                              </r:DataRange.ItemTemplate>
                        </r:DataRange>
                     </r:ItemContainer>
                  </DataTemplate>
            </r:DataRange.ItemTemplate>
         </r:DataRange>

I wanna to control "EliminationList" DataRange to show or hide.

thx..

You can handle the QueryDetails event of the report, inspect the sender's name and if it is "EliminationList", do one of the following depending on whether you want to show or hide the range:

To hide the range, simply assign an empty IEnumerable (for example new object[] {}) to QueryDetailsEventArgs.Details. This will indicate that the range is empty.
To show the range, set Details to null and DataRange.Repeat to 1.

Let me know if this helps.

Regards,
Meppy

Meppy wrote on May 15^th, 2013 at 9:44am:

You can handle the QueryDetails event of the report, inspect the sender's name and if it is "EliminationList", do one of the following depending on whether you want to show or hide the range:

To hide the range, simply assign an empty IEnumerable (for example new object[] {}) to QueryDetailsEventArgs.Details. This will indicate that the range is empty.
To show the range, set Details to null and DataRange.Repeat to 1.

Let me know if this helps.

Regards,
Meppy

Yeah, it will hide the DataRange, but this will throw exception when exporting to PDF

Hi,

I have sent you an e-mail with an updated version that should address this problem.

Regards,
Meppy

Meppy wrote on May 16^th, 2013 at 7:38am:

Hi,

I have sent you an e-mail with an updated version that should address this problem.

Regards,
Meppy

Hi,

Thanks for your great help, the problem is solved,
but there is still little problem, when the "EliminationList" DataRange is hidden, the area is still exist, like image below

The blank area can be removed?

2013-5-17_9-03-24.png (Attachment deleted)

Hi,

You can try setting the height of the DataRange in question to 0 (that is, set Size to "W,0" where W is your current value for width). If the range has any content, it will be resized accordingly so that the content fits; if it is empty, it should take no space. However, the header of the data range (if any) will still be accounted for.

Regards,
Meppy

Hi,

I set my "AnswerList" and "EliminationList" DataRange size's height to 0, but seem still the same effect.

Hi,

Can you please attach the full XAML of your report?

Regards,
Meppy

Meppy wrote on May 20^th, 2013 at 5:41am:

Hi,

Can you please attach the full XAML of your report?

Regards,
Meppy

This is my full XAML report below,
thanks.

Code (html):

Hi,

I have e-mailed you a new version of the control. Now, in addition to setting the heights of AnswerList and EliminationList to 0, now also set the height of the primary data range to 0. This is to indicate that the data range needs to be auto-sized based on its content.

Regards,
Meppy

Hi Meppy, thanks for your great help.

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MindFusion.Reporting >> WPF >> The empty DataRange can NOT be exported to PDF https://mindfusion.eu/Forum/YaBB.pl?num=1368524680 Message started by luolishuang on May 14^th, 2013 at 9:44am