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Hey guys.
 
1. I've created a Own Class, called "Text" (in my namespace "Data.Core").
 
2. I've created a DataTable-Object called "oDataTable".
 
3. I've Added a Column to this Object by using the following Code:
 
oDataTable.Columns.Add("Deutsch", typeof(Data.Core.Text));
 
4. I've created several DataRows to this DataTable-Object, which contains Text-Objects
 
4. I've set the DataTable to the ItemSource of a DataGrid (WPF .Net 4.0) and Bound a String-Property of my Text-Object to display in my Grid.
 
5. No I want to set a Filter. My First Idea was using the RowFilter-Property of my
DataTables DefaultView-Property. But there appears an EvaluateException:
"Can't convert Data.Core.Text into System.String".
Is there a common way to handle this problem or have I to create a workaround ?
Posted 29-Sep-11 22:28pm
Edited 29-Sep-11 23:04pm
v2

1 solution

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Solution 1

Supply your class with a implicit conversion operator for System.String, see Using Conversion Operators[^] for an explanation.
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Comments
Jeff.Jefferson at 11-Oct-11 2:38am
   
That really works ?
 
I've put these code in my "Text"-Class.
<pre lang="c#">
public static implicit operator string(Text t)
{
return t.Caption;
}</pre>
 
Caption is a string-Property of my Text-Class.
 
The same Error occurs :-S
 
But i have a question to the Conversion operators....
 
Can there occur a conflict by implement this Conversion for Strings and a "override ToString()-Method" ?

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