Using dynamic template in GridView is slightly different
from DataList. We will create the dynamic GridView in column wise with header
template, item template and footer template from the first column to the last.
Steps
1.
Create a GridView Object.
2.
Create an instance of TemplateField object.
3.
Instantiate the Dynamic template class with proper ListItemType and
assign it to the corresponding template property of TemplateField object and
finally add this object to the column collection of GridView.
Listing 6: Templates of GridView
TemplateField tf = new TemplateField();
tf.HeaderTemplate = new DynamicGridViewTextTemplate("ArticleID",
DataControlRowType.Header);
tf.ItemTemplate = new DynamicGridViewTextTemplate("ArticleID",
DataControlRowType.DataRow);
tf.FooterTemplate = new DynamicGridViewTextTemplate(DataControlRowType.Footer,
ds.Tables[i].Rows.Count); If you compare the implementation of DataList, in Gridview
we will not create a dynamic template for the grid, instead we create it for
the grid’s column (TemplateField).
Listing 7: Using Template class
for (int i = 0; i < ds.Tables.Count; i++)
{
if (ds.Tables[i].Rows.Count > 0)
{
GridView gvDynamicArticle = new GridView();
gvDynamicArticle.Width = Unit.Pixel(700);
gvDynamicArticle.BorderWidth = Unit.Pixel(0);
gvDynamicArticle.Caption =
"<div id=\"nifty\" class=\"PostCategory\">" +
ds.Tables[i].Rows[0]["Category"].ToString() +
" Articles</div>";
gvDynamicArticle.AutoGenerateColumns = false;
gvDynamicArticle.ShowFooter = true;
TemplateField tf = null;
tf = new TemplateField();
tf.HeaderTemplate = new DynamicGridViewTextTemplate("ArticleID",
DataControlRowType.Header);
tf.ItemTemplate = new DynamicGridViewTextTemplate("ArticleID",
DataControlRowType.DataRow);
tf.FooterTemplate = new DynamicGridViewTextTemplate(
DataControlRowType.Footer, ds.Tables[i].Rows.Count);
gvDynamicArticle.Columns.Add(tf);
tf = new TemplateField();
tf.HeaderTemplate = new DynamicGridViewTextTemplate("Title",
DataControlRowType.Header);
tf.ItemTemplate = new DynamicGridViewTextTemplate("Title",
DataControlRowType.DataRow);
gvDynamicArticle.Columns.Add(tf);
tf = new TemplateField();
tf.HeaderTemplate = new DynamicGridViewTextTemplate("Description",
DataControlRowType.Header);
tf.ItemTemplate = new DynamicGridViewTextTemplate("Description",
DataControlRowType.DataRow);
gvDynamicArticle.Columns.Add(tf);
tf = new TemplateField();
tf.HeaderTemplate = new DynamicGridViewURLTemplate("Title", "URL",
DataControlRowType.Header);
tf.ItemTemplate = new DynamicGridViewURLTemplate("Title", "URL",
DataControlRowType.DataRow);
gvDynamicArticle.Columns.Add(tf);
tf = new TemplateField();
tf.HeaderTemplate = new DynamicGridViewTextTemplate("Author",
DataControlRowType.Header);
tf.ItemTemplate = new DynamicGridViewTextTemplate("CreatedBy",
DataControlRowType.DataRow);
gvDynamicArticle.Columns.Add(tf);
gvDynamicArticle.RowDataBound += new
GridViewRowEventHandler(this.DynamicGrid_RowDataBound);
gvDynamicArticle.DataSource = ds.Tables[i];
gvDynamicArticle.DataBind();
phDynamicGridHolder.Controls.Add(gvDynamicArticle);
}
}In the above code (Listing 6 –Using Template class) we can
clearly understand that we are creating the dynamic template for the GridView's
column as opposed to DataList where we created the template for the grid
itself. To throw more light on this it means that we are creating the first
column’s header, item and footer and adding it to the GridView's column list
through TemplateField object to the last column as I said earlier.
