Displaying the articles in gridview will be different from
displaying in datalist. For achieving this, I have created two Template
classes,
·
DynamicGridViewTextTemplate
·
DynamicGridViewURLTemplate.
DynamicGridViewTextTemplate class is used to add a template
column with label while DynamicGridViewURLTemplate class is used to add the URL
of the article.
Listing 5: TemplateClass for GridView
public class DynamicGridViewTextTemplate : ITemplate
{
string _ColName;
DataControlRowType _rowType;
int _Count;
public DynamicGridViewTextTemplate(string ColName, DataControlRowType RowType)
{
_ColName = ColName;
_rowType = RowType;
}
public DynamicGridViewTextTemplate(DataControlRowType RowType,
int ArticleCount)
{
_rowType = RowType;
_Count = ArticleCount;
}
public void InstantiateIn(System.Web.UI.Control container)
{
switch (_rowType)
{
case DataControlRowType.Header:
Literal lc = new Literal();
lc.Text = "<b>" + _ColName + "</b>";
container.Controls.Add(lc);
break;
case DataControlRowType.DataRow:
Label lbl = new Label();
lbl.DataBinding += new EventHandler(this.lbl_DataBind);
container.Controls.Add(lbl);
break;
case DataControlRowType.Footer:
Literal flc = new Literal();
flc.Text = "<b>Total No of Articles:" + _Count + "</b>";
container.Controls.Add(flc);
break;
default:
break;
}
}
private void lbl_DataBind(Object sender, EventArgs e)
{
Label lbl = (Label)sender;
GridViewRow row = (GridViewRow)lbl.NamingContainer;
lbl.Text =DataBinder.Eval(row.DataItem, _ColName).ToString();
}
}
public class DynamicGridViewURLTemplate : ITemplate
{
string _ColNameText;
string _ColNameURL;
DataControlRowType _rowType;
public DynamicGridViewURLTemplate(string ColNameText,
string ColNameURL, DataControlRowType RowType)
{
_ColNameText = ColNameText;
_rowType = RowType;
_ColNameURL = ColNameURL;
}
public void InstantiateIn(System.Web.UI.Control container)
{
switch (_rowType)
{
case DataControlRowType.Header:
Literal lc = new Literal();
lc.Text = "<b>" + _ColNameURL + "</b>";
container.Controls.Add(lc);
break;
case DataControlRowType.DataRow:
HyperLink hpl = new HyperLink();
hpl.Target = "_blank";
hpl.DataBinding += new EventHandler(this.hpl_DataBind);
container.Controls.Add(hpl);
break;
default:
break;
}
}
private void hpl_DataBind(Object sender, EventArgs e)
{
HyperLink hpl = (HyperLink)sender;
GridViewRow row = (GridViewRow)hpl.NamingContainer;
hpl.NavigateUrl = DataBinder.Eval(row.DataItem, _ColNameURL).ToString();
hpl.Text = "<div class=\"Post\"><div class=\"PostTitle\">" +
DataBinder.Eval(row.DataItem, _ColNameText).ToString() + "</div></div>";
}
} 
