how to have one of the column in gridview to be an image?

I have a gridview that gets created in codebehind.

In the below code, I would like to have 3rd column to be some image (Example: PDF icon or similar).

I am thinking Type.GetType needs to be changed for column named “Image”??

DataTable dt = new DataTable();
GridView gview = new GridView();
DataRow dr;
DataColumn dc = new DataColumn("Description", Type.GetType("System.String"));
dc = new DataColumn("Image", Type.GetType("System.String"));
dc = new DataColumn("Size (MB)", Type.GetType("System.String"));
    dr = dt.NewRow();
    dr["Description"] = item["Name"];
    dr["Size (MB)"] = item["Size"];
    dr["Image"] = "pdf.gif"; // put complete reference here,
gview.DataSource = dt;


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Method 1

Just store the image URL in the DataTable rather than the actual image. Then, use a TemplateField in your GridView and put an Image in the ItemTemplate:

        <asp:Image ID="Image1" runat="server" ImageUrl='<%# Eval("ImageUrlColumn") %>' ... />

You can also use an ImageField:
<asp:ImageField DataImageUrlField="ImageNameColumn" DataImageUrlFormatString="/images/{0}"></asp:ImageField>


When declaring columns, try this instead:

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

And to set the value of the image column, try this:
dr.SetField<string>("Image", "img.png");

Method 2

In grid view put command field column like the following

<asp:CommandField runat="server" ShowDeleteButton="true" ButtonType="Image" DeleteImageUrl="images/delete.png" ></asp:CommandField>

set the gridview property like the following


Method 3

Another way is to enable in your DataGrid the RowDataBound Event. Then set in the event the wire up for each new row to your image.

protected void GridView1_RowDataBound(object sender, GridViewRowWEventArgs e)
    if(e.Row.RowType == DataControlRowType.DataRow)
        //Setup in your image column index. By Example setting 0
        e.Row.Cells[0].Text=Server.HtmlDecode(@"<img src=""./Images/pdf.gif"" />");

All methods was sourced from or, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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