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POListView programatically added columns shows type of item
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copied!<p>I got a ListView in another assembly and want to add a column to it. The items in the listview are objects of a class in that assembly.</p> <p>When I add a column like this</p> <pre><code>var col : GridViewColumn = new GridViewColumn(); col.Header = "Header text"; list.View.Columns.Add(col); </code></pre> <p>the column appears but all rows in the listview have the name of the type of the item in that new column. Even when I change the value of the new column (<code>itemclass.Items[newColIdx] = "zz"</code>) this does not display. There is no data binding or cell templates involved.</p> <p>Why is that?</p> <p><strong>Edit</strong>: Maybe I can enhance the question: If a ListView.Items contains an array of class A - how do you control which things of A are displayed how in the GridView? I am in the need of reverse engineering here and DisplayMemberBinding is null so it does not use data binding AFAIK.</p> <p><strong>Bounty Question</strong>: When <code>ToString()</code> is called on every item (which represents a row), how is that mapped towards the columns of the GridView? How must I alter an item in the row so that the new column is filled?</p> <p>Special problem when trying to find this solution is that this runs in a JScript sandbox within a bigger C# .NET application and no debugging possibility is supplied other than using message boxes and reflection.</p> <p><strong>Edit</strong>: The problem is that I am writing a JScript which runs in a 3rd party .NET application and gives me the opportunity to do many things possible with .NET. This is a script adding features to a listview. I can access the listview and it is filled with database data by the 3rd party app. I do not know how it does that. I can programatically add custom rows with custom content (not DB related). But when I add a custom column I do not seem to be able to se its value in den rows.</p> <p>The added rows are of a type <code>3rdParty.ListRow</code> and contain a property <code>Items</code> to which I assign a string array. The values of the array are displayed in the representative columns - but not in the added columns. There I only get the text <code>3rdParty.ListRow</code> which is because <code>ToString()</code> was called on the ListRow.</p> <p>So: How can I tell the new columns (e.g. index 5) to display <code>ListRow.Items[5]</code> and not <code>ListRow.ToString()</code>? I liked to do it the same way the already existing columns do it seems that all the properties Alex mentioned are undefined there. How would I set <code>DataMemberBinding</code> to achieve mapping to <code>ListRow.Items[5]</code>?</p>

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