Set number of rows from code (GridView)

Question

Hi developers!

I have a question how to set the number of rows from the code (C#)

I have following xaml code:

                        <GroupStyle.Panel>
                            <ItemsPanelTemplate>
                                <VariableSizedWrapGrid  x:Name="LogoGrid" Orientation="Vertical" Margin="0,0,80,0" ItemWidth="180" ItemHeight="160" MaximumRowsOrColumns="3"/>
                            </ItemsPanelTemplate>
                        </GroupStyle.Panel>  

I want to let users to set number of rows on the Settings page,

my GridView:

<local:VariableSizeGridView
/>

class VariableSizeGridView: GridView
    {       
        protected override void PrepareContainerForItemOverride(Windows.UI.Xaml.DependencyObject element, object item)
        {           
            base.PrepareContainerForItemOverride(element, item);        
        }
    }

Is it possible? And is it possilbe to change number of rows at runtime?

Answer 1

you can use the visualtreehelper. But the VSWG is generated for each group. Also can use the loaded event or maybe size changed (its what i often use)

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Microsoft Certified Solutions Developer - Windows Store Apps Using C#

Answer 2

you can use the visualtreehelper. But the VSWG is generated for each group. Also can use the loaded event or maybe size changed (its what i often use)

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Microsoft Certified Solutions Developer - Windows Store Apps Using C#

could you please write a sample of code?

Answer 3

Is it possible to change number of rows by changing templates?

               <GroupStyle.Panel>                           
                    <ItemsPanelTemplate>
                        <VariableSizedWrapGrid Background="Red"  Orientation="Vertical" Margin="0,0,40,0" />
                    </ItemsPanelTemplate>
                </GroupStyle.Panel>

for example to create templates in the Page resources, use GroupStyleSelector?