I'm getting an error using AjaxControlToolKit Combobox and trying to fill the dropdownlist from database.
Combobox1.DisplayMember returns the message 'AjaxControlToolkit.ComboBox does not contain a definition for 'DisplayMember' but i found some examples with DisplayMember
AjaxControlToolkit was downloaded over NuGet and Reference is in.
AjaxControlToolkit ComboBox does not contain DisplayMemeber property. It can be easily checked with the Ajax Control Toolkit source code and IntelliSense.
I suppose you messed up with default WinForms ComboBox control which in fact has this property.
Related
I have an Xceed wpf datagrid that is bound to a dataset with related datatables. I am binding to a datatable property on the viewmodel using a DataGridCollectionViewSource in the ui. The datagrid binds to this static datagridcollectionviewsource. On loading up, the data is displayed in the grid as a hierarchy as expected. I am then defining a custom template for the default datacell which uses a ValueConverter where I perform some unit conversions. When the grid first loads, the converter gets called and the values are displayed as expected. However, when the user changes the conversion parameter, I would like the grid to be refreshed so the ValueConverter is invoked again in order to display the correct value.
However, I have just spent the last couple of hours going through the xceed documentation and they simply call Refresh method on the collectionviewsource. Doing this doesn't seem to be forcing the datagrid to invoke the ValueConverter for the datacell so I don't believe there is any Refresh happening.
Any help in resolving this would be appreciated.
I've got a windows form in my C# program that contains a datagridview which itself contains a combobox. Both the gridview and the combobox use a binding source.
The problem is, that I can't add a new row as the combobox prompts the following error:
DataGridViewComboBoxCell value is not valid.
Both binding sources are populated like so:
this.werkzeugBindingSource.DataSource = context.Werkzeug.Local.ToBindingList();
this.gruppeBindingSource.DataSource = context.Gruppe.Local.ToBindingList();
The context is a Entity Framework 6 context.
How can I set a default value or anything like that? I'd be fine for me if the first element of the combobox was selected by default.
WPF C# VS2008 3.5 I have a few pages(page1.xaml ect.) and I would like to bind text from a textbox to a label on a different page in xaml. I tried using ElementName but the label does not show the text user enters in textbox. I know something is wrong in the Path, but I'm new to wpf so any help would be great. My xaml referenced the x:Name of the textbox, should I reference the page also? thanks in advance
I think it would be better to create a class that will hold the data and create a single object of that class and bind both pages to it.
I'm not quite sure how to go about this so any advice would be much appreciated.
I have a ListView whose default implementation is using with column headers. At runtime in the program I would like to be able to click on a button at runtime to change the view so that the list view loses the GridViewColumn headers and implements a new style using one of my own data template.
Then I would also like the ability to click the button and change the ListView back to a grid view with column headers.
Can anyone point me in the correct direction of how to go about this?
Thanks
Since ListView.View is dependency property, you can bind it to something on your VM via converter.
Microsoft has a sample that demonstrate how to create a ListView control that displays data in multiple view modes, which include the GridView and other custom view modes.
Search for ListView with Multiple Views Sample in the WPF Documentation Sample page.
http://archive.msdn.microsoft.com/wpfsamples
Here is a direct link to download the sample:
http://archive.msdn.microsoft.com/Project/Download/FileDownload.aspx?ProjectName=wpfsamples&DownloadId=7766
I created a WPF custom control with a dependency property of an enum type.
I want the user of that control when editing the XAML in VS to see the optional values of the enum in the intellisense window.
Does anyone know how it can be done?
I believe it will work if you add an "XmlnsDefinition" attribute to the assembly containing the control. By the way, I ran into problems with this when trying to reference the control in the same project.
The question was asked also here:
How can I get IntelliSense to auto-complete an enum on a custom/user control in XAML?
There is an answer but it's not marked, maybe you can try the suggestion and come back with the result of your test.