XML image how to display at data grid columns in c#.net

Question

this the xml code this the image i have to display datagridview colums //cdn.apixu.com/weather/64x64/day/113.png

<root>

<condition>

<text>Sunny</text>

<icon>//cdn.apixu.com/weather/64x64/day/113.png</icon>

<code>1000</code>

</condition>

</root>

this is the code I have tried in c#.net. all data will display correctly but image is not displaying the only path is displaying at the datagridview.how to display the image at datgridview

DataTable dt = new DataTable();

dt.Columns.Add("country", typeof(string));

dt.Columns.Add("Date", typeof(string));

dt.Columns.Add("Max Temp", typeof(string));

dt.Columns.Add("Min Temp", typeof(string));

dt.Columns.Add("Text", typeof(string));

dt.Columns.Add("Icon", typeof(string));

city = txttext.Text;

string uri = string.Format("http://api.apixu.com/v1/forecast.xml?={0}&days=7", city);

XDocument doc = XDocument.Load(uri);

foreach (var npc in doc.Descendants("forecastday"))

{

dt.Rows.Add(new object[] {

(string)doc.Descendants("country").FirstOrDefault(),

(string)npc.Descendants("date").FirstOrDefault(),

(string)npc.Descendants("maxtemp_c").FirstOrDefault(),

(string)npc.Descendants("mintemp_c").FirstOrDefault(),

(string)npc.Descendants("text").FirstOrDefault(),

"http:" +(string)npc.Descendants( "icon").FirstOrDefault()

});

}

dataGridView1.DataSource = dt;