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.NET Forum / Languages / C# / March 2008How to use objects for a DataGridView
Visual Studio .NET lets me to choose an object type (not an instance) for the datasource of a datagridview control. Then it automatically generates a ~~~bindingsource (~~~ is the object type name) component. But I don't understand how to use it, I searched Google for this, but couldn't find a tutorial or something. How can I actually set an instance of a collection object for the datagridview? If there is a tutorial page for this task, please direct me there. Thank you. > Visual Studio .NET lets me to choose an object type (not an instance) > for the datasource of a datagridview control. Then it automatically [quoted text clipped - 3 lines] > instance of a collection object for the datagridview? If there is a > tutorial page for this task, please direct me there. Thank you. I found that the reason nothing came up on the control was that my object has no properties but public fields. I created a property and it was shown. I wonder if I have to make them all properties instead of public fields, because that object has no operations and doesn't need to validate the value of its public fields. > I wonder if I have to make them all properties instead > of public fields, because that object has no operations and doesn't > need to validate the value of its public fields. The standard approach is, indeed, to use properties. Even if you don't have validation. With C# 3 you can make this as easy as fields using the new auto- implemented property syntax: public int Foo {get;set;} I *strongly* recommend using properties. However, I have seen a TypeDescriptionProvider implementation that exposed the fields via runtime PropertyDescriptors, which allows binding to property-grids, data-grid-view, etc. But I don't recommend it. Marc If you still can put you hand on it, this book has 2 nice chapters about data source binding: http://www.amazon.com/Windows-Forms-Programming-Microsoft-Development/dp/0321267 966/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1204574054&sr=1-1 It is a kind of 'historical progression' about data binding, but it may help to understand the mechanic behind, which can be useful, on occasions. Vanderghast, Access MVP > Visual Studio .NET lets me to choose an object type (not an instance) > for the datasource of a datagridview control. Then it automatically [quoted text clipped - 3 lines] > instance of a collection object for the datagridview? If there is a > tutorial page for this task, please direct me there. Thank you. I found that the reason nothing came up on the control was that my object has no properties but public fields. I created a property and it was shown. I wonder if I have to make them all properties instead of public fields, because that object has no operations and doesn't need to validate the value of its public fields.
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