Question

I am trying to assign different tooltips to DataGrid rows according to certain conditions.

private void DataGrid_LoadingRow(object sender, DataGridRowEventArgs e)
    {
        DataGridRow row = e.Row;

        if (row["AssemblySummary"].ToString.Contains("Class"))
        {
            row.ToolTip = "Class definition...";
        }

    }

I am getting “Cannot apply indexing to an expression of type ‘System.Windows.Controls.DataGridRow’.” If i have a row why cannot i access its items? How to access cell[i]?

Edit made: I am verry sorry, I needed to access first cell in the given row like it is done now. I still have the same error. Thank you

Answer 1

Try this and let us know if it works:

DataGridRow row = e.Row;
DataRowView rView = row.Item as DataRowView
if(rView != null && rView.Item["AssemblySummary"].ToString().Contains("Class"))
    row.ToolTip = "Class definition...";

If it doesn’t, then it could be that the visual row has been loaded, but the data hasn’t been bound yet.