Search textbox : Object reference not set to an instance of an object

servicesigu

Hi,

In VS2017 with ArcGis pro 2.5 SDK,

when i try to add a search textbox to a new dockpane, this error happens

Object reference not set to an instance of an object

Search textbox

The Search TextBox control is a custom search control in ArcGIS.Desktop.Framework.dll that provides an optional search history menu.

xmlns:controls="clr-namespace:ArcGIS.Desktop.Framework.Controls;assembly=ArcGIS.Desktop.Framework" <controls:SearchTextBox InfoText="Search features" SearchMode="Manual" Search="SearchTextBox_Search" Width="200"/>

It's the same with with a BurgerButton.

What is wrong  for me ?

Is there someone else in the same case?

Thanks in advance for you reply.

ProAppModule1.zip

ESRI_itemdescription_others.jpg

FleetError.JPG

Anonymous User

Hi service sigu‌,

I believe you can open the dockpane already.

Based on your dockpane2.xaml, it is overlapped with textblock, so that you can't really see it.

Replace your Grid tag with below snippet and try again in arcgis pro. Design view in Visual studio for that xaml coding will not display correctly as always.

What I have changed? => I added additional row and specify your searchtextbox the row no to display. Grid.Row="1".

Let me know how's go.

  <SPAN class="token tag"><SPAN class="token tag"><SPAN class="punctuation token"><</SPAN>Grid</SPAN><SPAN class="punctuation token">></SPAN></SPAN>
        <Grid.RowDefinitions>
            <SPAN class="token tag"><SPAN class="token tag"><SPAN class="punctuation token"><</SPAN>RowDefinition</SPAN> <SPAN class="attr-name token">Height</SPAN><SPAN class="attr-value token"><SPAN class="punctuation token">=</SPAN><SPAN class="punctuation token">"</SPAN>Auto<SPAN class="punctuation token">"</SPAN></SPAN><SPAN class="punctuation token">/></SPAN></SPAN>
            <SPAN class="token tag"><SPAN class="token tag"><SPAN class="punctuation token"><</SPAN>RowDefinition</SPAN> <SPAN class="attr-name token">Height</SPAN><SPAN class="attr-value token"><SPAN class="punctuation token">=</SPAN><SPAN class="punctuation token">"</SPAN>Auto<SPAN class="punctuation token">"</SPAN></SPAN><SPAN class="punctuation token">/></SPAN></SPAN>
            <SPAN class="token tag"><SPAN class="token tag"><SPAN class="punctuation token"><</SPAN>RowDefinition</SPAN> <SPAN class="attr-name token">Height</SPAN><SPAN class="attr-value token"><SPAN class="punctuation token">=</SPAN><SPAN class="punctuation token">"</SPAN>*<SPAN class="punctuation token">"</SPAN></SPAN><SPAN class="punctuation token">/></SPAN></SPAN>
        </Grid.RowDefinitions>
        
        <SPAN class="token tag"><SPAN class="token tag"><SPAN class="punctuation token"><</SPAN>DockPanel</SPAN> <SPAN class="attr-name token">Grid.Row</SPAN><SPAN class="attr-value token"><SPAN class="punctuation token">=</SPAN><SPAN class="punctuation token">"</SPAN>0<SPAN class="punctuation token">"</SPAN></SPAN> <SPAN class="attr-name token">LastChildFill</SPAN><SPAN class="attr-value token"><SPAN class="punctuation token">=</SPAN><SPAN class="punctuation token">"</SPAN>true<SPAN class="punctuation token">"</SPAN></SPAN> <SPAN class="attr-name token">KeyboardNavigation.TabNavigation</SPAN><SPAN class="attr-value token"><SPAN class="punctuation token">=</SPAN><SPAN class="punctuation token">"</SPAN>Local<SPAN class="punctuation token">"</SPAN></SPAN> <SPAN class="attr-name token">Height</SPAN><SPAN class="attr-value token"><SPAN class="punctuation token">=</SPAN><SPAN class="punctuation token">"</SPAN>30<SPAN class="punctuation token">"</SPAN></SPAN><SPAN class="punctuation token">></SPAN></SPAN>
            <SPAN class="token tag"><SPAN class="token tag"><SPAN class="punctuation token"><</SPAN>TextBlock</SPAN> <SPAN class="attr-name token">Grid.Column</SPAN><SPAN class="attr-value token"><SPAN class="punctuation token">=</SPAN><SPAN class="punctuation token">"</SPAN>1<SPAN class="punctuation token">"</SPAN></SPAN> <SPAN class="attr-name token">Text</SPAN><SPAN class="attr-value token"><SPAN class="punctuation token">=</SPAN><SPAN class="punctuation token">"</SPAN>{Binding Heading}<SPAN class="punctuation token">"</SPAN></SPAN><SPAN class="style-attr language-css token"><SPAN class="attr-name token"> <SPAN class="attr-name token">Style</SPAN></SPAN><SPAN class="punctuation token">="</SPAN><SPAN class="attr-value token"><SPAN class="punctuation token">{</SPAN>DynamicResource Esri_TextBlockDockPaneHeader<SPAN class="punctuation token">}</SPAN></SPAN><SPAN class="punctuation token">"</SPAN></SPAN><SPAN class="punctuation token">></SPAN></SPAN>
                <TextBlock.ToolTip>
                    <SPAN class="token tag"><SPAN class="token tag"><SPAN class="punctuation token"><</SPAN>WrapPanel</SPAN> <SPAN class="attr-name token">Orientation</SPAN><SPAN class="attr-value token"><SPAN class="punctuation token">=</SPAN><SPAN class="punctuation token">"</SPAN>Vertical<SPAN class="punctuation token">"</SPAN></SPAN> <SPAN class="attr-name token">MaxWidth</SPAN><SPAN class="attr-value token"><SPAN class="punctuation token">=</SPAN><SPAN class="punctuation token">"</SPAN>300<SPAN class="punctuation token">"</SPAN></SPAN><SPAN class="punctuation token">></SPAN></SPAN>
                        <SPAN class="token tag"><SPAN class="token tag"><SPAN class="punctuation token"><</SPAN>TextBlock</SPAN> <SPAN class="attr-name token">Text</SPAN><SPAN class="attr-value token"><SPAN class="punctuation token">=</SPAN><SPAN class="punctuation token">"</SPAN>{Binding Heading}<SPAN class="punctuation token">"</SPAN></SPAN> <SPAN class="attr-name token">TextWrapping</SPAN><SPAN class="attr-value token"><SPAN class="punctuation token">=</SPAN><SPAN class="punctuation token">"</SPAN>Wrap<SPAN class="punctuation token">"</SPAN></SPAN><SPAN class="punctuation token">/></SPAN></SPAN>
                    <SPAN class="token tag"><SPAN class="token tag"><SPAN class="punctuation token"></</SPAN>WrapPanel</SPAN><SPAN class="punctuation token">></SPAN></SPAN>
                </TextBlock.ToolTip>
            <SPAN class="token tag"><SPAN class="token tag"><SPAN class="punctuation token"></</SPAN>TextBlock</SPAN><SPAN class="punctuation token">></SPAN></SPAN>
        <SPAN class="token tag"><SPAN class="token tag"><SPAN class="punctuation token"></</SPAN>DockPanel</SPAN><SPAN class="punctuation token">></SPAN></SPAN>
        <SPAN class="token tag"><SPAN class="token tag"><SPAN class="punctuation token"><</SPAN><SPAN class="namespace token">controls:</SPAN>SearchTextBox</SPAN> <SPAN class="attr-name token">Grid.Row</SPAN><SPAN class="attr-value token"><SPAN class="punctuation token">=</SPAN><SPAN class="punctuation token">"</SPAN>1<SPAN class="punctuation token">"</SPAN></SPAN> <SPAN class="punctuation token">></SPAN></SPAN>
        <SPAN class="token tag"><SPAN class="token tag"><SPAN class="punctuation token"></</SPAN><SPAN class="namespace token">controls:</SPAN>SearchTextBox</SPAN><SPAN class="punctuation token">></SPAN></SPAN>
    <SPAN class="token tag"><SPAN class="token tag"><SPAN class="punctuation token"></</SPAN>Grid</SPAN><SPAN class="punctuation token">></SPAN></SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

Best Regards,

Than