Convert code C# 2008 to code C# 2005 ?

[dongtrien]

I want convert code C# 2008 to code C# 2005, I did not understand the command C# 2008 to switch to C# 2005, see below is the error code can solve the error command do ? run the code in C# 2008 very good

private void textBox1_TextChanged(object sender, EventArgs e)
        {
            string str = textBox1.Text.Trim();


            if (!string.IsNullOrEmpty(str))
            {
                // Error in here
                Expression<Func<CustomData, bool>> expr = n => GetCondition(n, str);
                this.gridControl1.DataSource = this.lstCustomData.Where<CustomData>(expr.Compile()).ToList();
            }
            else
                this.gridControl1.DataSource = this.lstCustomData;
            this.gridControl1.RefreshDataSource();
        }


public class CustomData
    {
        // Error in here
        public int col1 { get; set; }
        public string col2 { get; set; }
        public string col3 { get; set; }
        public int col4 { get; set; }
    }

[VictorN]

What errors (exactly!) do you get?

[Nuttyrunner]

you can try this/

[HanneSThEGreaT]

Switching back to a previous version just because you don't understand the newer methods is not the way to go.... I suggest learning LINQ and see how easy it can make everything for you

[dongtrien]

I'm looking to understand how the .Net 2.0 and .Net 3.5, I think someone who understands and will move the code.

[dongtrien]

you can try this/

I tried the link you sent it, the program is not convert to C# 2005

[Arjay]

I tried the link you sent it, the program is not convert to C# 2005

Probably should have asked th9s earlier, but what do you hope to accomplish by going back to VS 2005?

[dongtrien]

not necessarily so, I am learn 2 type writing linkq and style of writing standards