.Net Listbox DataBinding Problem


.Net Listbox DataBinding Problem



I have a main class which creates and populates a DataSet and an instance of this class is then passed to sub controls of my application by reference. I want to use this dataset to databind to components, in this case, a listbox. This is for a windows forms application.

Heres what I'm trying:

channelTypesLB.DataBindings.Add("Text", synData.ds, "ChannelTypes.channelType"); 

Note, I've also tried this: (not sure if theres a difference)

channelTypesLB.DataBindings.Add("Text", synData.ds.Tables["ChannelTypes"], "channelType"); 

Theres no errors and I do not see the data in the listbox... when I output synData.ds.Tables["ChannelTypes"].Rows.Count it tells me that there is in fact data in this datatable.

Am I missing something? I also trued channelTypesLB.Refresh(); after setting the databinding.

This may also be helpful... this is the code in my main class where the dataset is created, not sure if its maybe a scope issue, I'd imagine I would have received an error:

private DataSet _ds = new DataSet(); public DataSet ds { get { return _ds; } } 



WPF ListView Thousand Separator

1:



WPF Data Triggers Set Object properties based on events
Try setting the Listbox's DataSource rather than binding to the Text property:.
(WPF) Binding two classes to a control
channelTypesLB.DataSource = synData.ds; channelTypesLB.DisplayMember = "ChannelTypes.channelType"; 
I'm not a DataBinding expert by any means, but I believe that by databinding the way you're currently doing it the control is binding to a PropertyManager which is used to bind one value of an object to one value of another.


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Here's a quick overview of WinForms databinding.
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2:


I'm assuming winforms here since there is no ASP.NET tag....
channelTypesLB.DataSource = synData.ds.Tables["ChannelTypes"].DefaultView; channelTypesLB.DisplayMember = "channelType"; 
Just in case it is ASP.NET though try:.
channelTypesLB.DataSource = synData.ds.Tables["ChannelTypes"].DefaultView; channelTypesLB.DataTextField = "channelType"; channelTypesLB.DataValueField = "channelTypeId"; // I'm assuming this field exists, replace with your id field  channelTypesLB.DataBind(); 



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