asp.net|web|xml| Create | dynamic ASP. NET to create the use of Web Components dynamically based on XML
Two
Author: Shing
Third, dynamically create Web Components.
First look at the program example:
private void createconfigtable (int totalnum,int[] sequenceint,string[] namestr,string[] ipstr)
{
Dynamically generate an input box based on the total number of points being measured
for (int i=1;i<=totalnum;i++)
{
Create a table
HtmlTable showtable = new HtmlTable ();
Showtable. border=0;
Showtable.id= "Showtable" +i.tostring ();
Showtable. Bordercolor= "#000000";
Showtable. cellpadding=4;
Showtable. cellspacing=4;
Showtable. align= "center";
MYPLACEHOLDER.CONTROLS.ADD (showtable);
Create a row
HtmlTableRow Trow = new HtmlTableRow ();
Showtable. Rows.Add (Trow);
Create first column (ordinal)
HtmlTableCell Tcell = new HtmlTableCell ();
Label Sequencelabel = new label ();
Sequencelabel.id= "Sequencelabel" +i.tostring ();
Sequencelabel.text= "serial number:";
Sequencelabel.enabled=true;
TCELL.CONTROLS.ADD (Sequencelabel);
TROW.CELLS.ADD (Tcell);
Create a second column
Tcell = new HtmlTableCell ();
SEQUENCEDATATB = new TextBox ();
Sequencedatatb.id= "SEQUENCEDATATB" +i.tostring ();
Sequencedatatb.text=i.tostring ();
sequencedatatb.width=30;
Sequencedatatb.text=sequenceint[i]. ToString ();
Sequencedatatb.readonly=false;
Create third column (name)
Tcell = new HtmlTableCell ();
Label Namelabel = new label ();
Namelabel.id= "Namelabel" +i.tostring ();
namelabel.text= "Name:";
Namelabel.enabled=true;
TCELL.CONTROLS.ADD (Namelabel);
TROW.CELLS.ADD (Tcell);
Create fourth Column
Tcell = new HtmlTableCell ();
Nametb=new TextBox ();
Nametb.id= "Nametb" +i.tostring ();
nametb.width=120;
Nametb.text=namestr[i];
nametb.maxlength=50;
TCELL.CONTROLS.ADD (NAMETB);
TROW.CELLS.ADD (Tcell);
Create fifth column (IP)
Tcell = new HtmlTableCell ();
Label Iplabel = new label ();
Iplabel.id= "Iplabel" +i.tostring ();
iplabel.text= "IP:";
Iplabel.enabled=true;
TCELL.CONTROLS.ADD (Iplabel);
TROW.CELLS.ADD (Tcell);
Create Sixth Column
Tcell = new HtmlTableCell ();
Iptb=new TextBox ();
Iptb.id= "IPTB" +i.tostring ();
iptb.width=120;
Iptb.text=ipstr[i];
iptb.maxlength=15;
TCELL.CONTROLS.ADD (IPTB);
TROW.CELLS.ADD (Tcell);
}
}
TCELL.CONTROLS.ADD (SEQUENCEDATATB);
TROW.CELLS.ADD (Tcell);
... ...
Create fifth column (IP)
Tcell = new HtmlTableCell ();
Label Iplabel = new label ();
Iplabel.id= "Iplabel" +i.tostring ();
iplabel.text= "IP:";
Iplabel.enabled=true;
TCELL.CONTROLS.ADD (Iplabel);
TROW.CELLS.ADD (Tcell);
Create Sixth Column
Tcell = new HtmlTableCell ();
Iptb=new TextBox ();
Iptb.id= "IPTB" +i.tostring ();
iptb.width=120;
Iptb.text=ipstr[i];
iptb.maxlength=15;
TCELL.CONTROLS.ADD (IPTB);
TROW.CELLS.ADD (Tcell);
}
}
The Myplaceholder in the program is the System.Web.UI.WebControls.PlaceHolder component, and the HTML syntax for using the component is as follows:
... ...
<tr>
<td>
<asp:placeholder id= "Myplaceholder" runat= "Server" ></asp:PlaceHolder>
</td>
</tr>
... ...
The purpose of using this component is to locate dynamically created tables. The location of the component on the page is the location of the dynamically created table.
Another place to be described in the program is the setting of the ID of the dynamically created component. Set the ID of the component to note two points:
1, ID number can not be repeated
2, to facilitate the use of the program. Because you want to use dynamically created components in your program, you are looking through the component's ID. (In this connection, the "use of dynamically created Web Components" section is described in more detail)
