CODEWITHSUNDEEP
vb.netvisual-studio-lightswitch
DevT
DevT

Reputation: 4933

how to access custom control value in lightswitch

i have create following custom control for lightswitch and how can i access and get data?

<UserControl x:Class="CustomControls.DateRange"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    d:DesignHeight="75" d:DesignWidth="123">
    <Grid x:Name="LayoutRoot" Background="White" Height="73">
        <ComboBox Height="23" HorizontalAlignment="Left" Margin="12,9,0,0" Name="cmbStartYear" VerticalAlignment="Top" Width="100" />
        <ComboBox Height="23" HorizontalAlignment="Left" Margin="13,39,0,0" Name="cmbStartMonth" VerticalAlignment="Top" Width="99" />
    </Grid>
</UserControl>

xaml.vb file coding : in here i added values for those combo boxes based on my logic.

Private Sub UserControl_Loaded(sender As System.Object, e As System.Windows.RoutedEventArgs) Handles MyBase.Loaded
        Dim availableYears As List(Of Integer) = GetYears()

        For Each year As Integer In availableYears
            cmbStartYear.Items.Add(year)
        Next
    End Sub

then i add that custom control to screen. (first create property and then assign custom control to that)

enter image description here

when it runs it will display as below enter image description here

so my question is how can i access these two combo boxes and get its value?

i found that 

Dim cmbyear As IContentItemProxy = Me.FindControl("StartYear")

can be used to access control. but how i can i get value of each control separately?

Upvotes: 1

Views: 764

Answers (1)

DevT
DevT

Reputation: 4933

this can be done as follows : first have to create local properties and in custom control need to bind them with those values.

in my scenario i have created two local properties called StartYear/StartMonth . then in custom control need to bind them to SelectedItem and mode must be TwoWay . i did it as follows:

<Grid x:Name="LayoutRoot" Background="White" Height="73">
        <ComboBox Height="23" HorizontalAlignment="Left" Margin="12,9,0,0" Name="cmbStartYear" VerticalAlignment="Top" Width="100" SelectedItem="{Binding Screen.StartYear, Mode=TwoWay}"/>
        <ComboBox Height="23" HorizontalAlignment="Left" Margin="13,39,0,0" Name="cmbStartMonth" VerticalAlignment="Top" Width="99" SelectedItem="{Binding Screen.StartMonth, Mode=TwoWay}" />
    </Grid>

then within my xaml.vb code can directly access those local properties.

Upvotes: 1

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