C#,ASP.NET: Formatting a GRIDVIEW row Based on Content

Greetings Gurus. I have a gridview who's rows I need to higlight if the 'Status' field is null. The code below throws an exception. I'm getting a "Non-invocable member 'System.Web.UI.WebControls.GridViewRow.DataItem' cannot be used like a method". I think I'm really close but I don't know where to turn next.

protected void GridView_RowDataBound(object sender, GridViewRowEventArgs e)
{
     if (e.Row.RowType == DataControlRowType.DataRow && 
     e.Row.DataItem("Status") == null)
    {
           // e.Row开发者_如何学JAVA.BackColor = Drawing.Color.Red;
    }
}

basic

CType(e.Row.DataItem, DataRowView)("Status") = null

c#

((DataRowView)e.Row.DataItem)["Status"] == null

or do it in more than one line -- see example here: msdn example

I haven't looked at this in a long while but do you access DataItem like an array??

e.Row.DataItem("Status") would be e.Row.DataItem["Status"]

Look here

// Retrieve the underlying data item. In this example // the underlying data item is a DataRowView object. DataRowView rowView = (DataRowView)e.Row.DataItem;

// Retrieve the state value for the current row. String state = rowView["state"].ToString();

Try casting:

if (((MyType)e.Row.DataItem).Status == null) { ... }

Have a look at the sample code at MSDN.

The key points are:

• Cast your DataRow to a DataRowView, like this:

  DataRowView rowView = (DataRowView)e.Row.DataItem;

• You can then retrieve values like this:

  // Retrieve the status value for the current row.
Status status = (Status)rowView["status"];

...or cast to whatever type Status happens to be.

Got it. It may not be the best solution but it works.

     if (e.Row.RowType == DataControlRowType.DataRow )
    {
        DataRowView test = (System.Data.DataRowView)e.Row.DataItem;
        string Active = test.Row[4].ToString();

       if(Active == "")
       {
           e.Row.BackColor = System.Drawing.Color.Sienna;
           e.Row.ForeColor = System.Drawing.Color.Yellow;
       }
    }