Reverse search by dataObjects

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guest

• July 18, 2011 05:59

Hi, It would be nice with a method like: grid.Rows.IndexOfDataObject(object o) I would like to find the row which contains a given DataObject". I have found no other way than to do:

foreach (Dapfor.Net.Ui.Row row in grid.Rows)
  if (row.DataObject==xxx)
  {
    found=row;
    break;
  }

I could store a pointer to the Row object in each of my "DataObjects", but that would break the separation between data & UI.

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• 

  Dapfor Team

  • July 18, 2011 06:31

  Hi,

  A small clarification: the same data object can be inserted several times into the .Net Grid. Thus the grid should return a collection of Rows as well as the first found Row.

  Here is an example:

  public void ReverseSearchExample(Grid grid)
  {
      //Add some products...
      Product product1 = new Product();
      Product product2 = new Product();
      grid.Rows.Add(product1);
      grid.Rows.Add(product2);
      
      //The first found row (not the first visible - just the first found!)
      Row row1 = grid.DataObjects.FindFirstRow(product1);
      //Enumerate all rows, related to the data object
      foreach (Row row in grid.DataObjects.Find(product1))
      {
          //Do something here
      }
  }

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