Using TemplateColumn and DataGrid in code

[Guest]

Hi

I need to be able to handle the following ASP programming in pure C# code:

<asp:TemplateColumn HeaderText="Customer Information">
<ItemTemplate>
<table border="0">
<tr>
<td align="right"><b>Name:</b></td>
<td><%# DataBinder.Eval(Container.DataItem, "name") %></td>
</tr>
<tr>
<td align="right"><b>ID number:</b></td>
<td><%# DataBinder.Eval(Container.DataItem, "customerID") %></td>
</tr>
<tr>
<td align="right"><b>E-mail:</b></td>
<td><%# DataBinder.Eval(Container.DataItem, "email") %>
</td>
</tr>
</table>
</ItemTemplate>
</asp:TemplateColumn>

I want to be able to create TemplateColumns that contain some HTML and be
able to insert multiple values from my datasource at runtime.

The reason for this is I want it to be part of a WebPart, where the DataGrid
is added through the CreateChildControls() method.

 

[Guest]

Finally I also found a solution to this, posting it here for reference if
anyone else ever needs to do something similar. I involves using
TemplateColumn and DataGrid to output several generated rows with presence
information.

For doing this in code, like I did, this link explains a lot of the code in
using the TemplateColumn:
http://www.superdotnet.com/Article.aspx?ArticleID=116

To get the E-mail for presence detection and name for display from the
datasource, the following example can be used (C#):

public class MyColumnTemplate : ITemplate
{
public void InstantiateIn(Control container)
{
Label name = new Label();
name.DataBinding += new EventHandler(myDatSource_DataBinding);
container.Controls.Add(name);
}

public void myDatSource_DataBinding(object sender, EventArgs e)
{
Label name = ((Label)(sender));
DataGridItem container = ((DataGridItem)(name.NamingContainer));
string email =
Convert.ToString(DataBinder.Eval((((DataGridItem)(container))).DataItem,
"eMail"));
}
}//End class


This is a simple example to show how this would work. Here you only see the
"name" attribute as the output. The rest would just be added just like this
is.
Notice that you need to add an event handler that gets the source to make
this work, something that ASP.NET does automatically.

 

[Guest]

Actually, an even better example would be like this:


public class MyColumnTemplate : ITemplate
{
public void InstantiateIn(Control container)
{
LiteralControl ouputLiteral = new LiteralControl();
ouputLiteral.DataBinding += new EventHandler(myLiteral_DataBinding);
container.Controls.Add(ouputLiteral);
}

public void myLiteral_DataBinding(object sender, EventArgs e)
{
LiteralControl myLiteral = ((LiteralControl)(sender));
DataGridItem container = ((DataGridItem)(myLiteral.NamingContainer));
string email =
Convert.ToString(DataBinder.Eval((((DataGridItem)(container))).DataItem,
"eMail"));
string name =
Convert.ToString(DataBinder.Eval((((DataGridItem)(container))).DataItem,
"contactName"));
string idnumber =
Convert.ToString(DataBinder.Eval((((DataGridItem)(container))).DataItem,
"idNumber"));
string strExactOutput;

strExactOutput = "" +
"<table border=\"0\">" +
"<tr>" +
"<td align=\"right\"><b>Name:</b></td>" +
"<td>" + name + "</td>" +
"</tr>" +
"<tr>" +
"<td align=\"right\"><b>ID number:</b></td>" +
"<td>" + idnumber + "</td>" +
"</tr>" +
"<tr>" +
"<td align=\"right\"><b>E-mail:</b></td>" +
"<td>" + email +
"</td>" +
"</tr>" +
"</table>";

myLiteral.Text = strExactOutput;
}
}//End class