This is a little difficult to describe, so bear with me. C#, WPF This combobox in a stackpanel:
<ComboBox x:Name="ddlProviderStatuses"
ItemsSource="{Binding vwProviderStatus}"
DisplayMemberPath="StatusName"
SelectedValuePath="ID"
Height="21"
Width="100"
Margin="0,0,0,0"
IsReadOnly="True"
SelectionChanged="ddlProviderStatus_SelectionChanged"
/>
This code to bind:
private void ddlProvidersStatusBind()
{
cnWkbProviderStatuses ProviderStatuses = new cnWkbProviderStatuses();
var Statuses = ProviderStatuses.vwProviderStatuses.ToList();
ProvStatus = Statuses;
DataContext = ProvStatus;
}
Works great. Returns the 4 statuses desired.
Separately I have a listview:
<ListView x:Name="lvProviders"
ItemsSource="{Binding}"
DisplayMemberPath="Tenant"
SelectedValuePath="TenantTID"
Height="Auto"
Width="Auto"
Margin="0,10,0,0"/>
This code to bind:
private void ProviderListBind()
{
cnWkbProviderList vwProviders = new cnWkbProviderList();
var ProvList = vwProviders.vwProviderTenants.ToList();
ProviderList = ProvList;
DataContext = ProviderList;
}
Works great. Now the listview is not bound until after a selection is made in the combobox because I'm working towards having the Provider List filtered based on selection:
private void ddlProviderStatus_SelectionChanged(object sender, RoutedEventArgs e)
{
ProviderListBind();
//lvProviders.Items.Filter = FilterProviders; Haven't successfully applied the filter yet, so disregard for the moment.
ListCount = lvProviders.Items.Count;
switch (ListCount)
{
case 0:
strStatus = "No records found.";
break;
case 1:
strStatus = "One record found.";
break;
default:
strStatus = ListCount + " records found.";
break;
}
labStatus.Content = strStatus;
}
This code works fine, the listview is populated and the row count is displayed. But, after making the combobox selection, the combobox no longer has 4 values in it, but rather hundreds of blank values (and the original 4 are gone).
I thought it might have been because I was trying to use the same connection string for both, so I rebuilt everything keeping each ADO Entity Model separate in separate models. But I keep getting the same result. Not only do I not understand the blank row in the combobox, but I don't understand why the combobox is executing the binding action again.
Thanks in advance.