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ASP ADO GetString function and using GetString to improve ASP's speed 1th/2 page _ Application Tips

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Tags constant define null
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The Rs.getstring method getstring the function of returning the specified recordset as a string. You can use this method to add an HTML table to an ASP file.
GetString method Syntax
Set str=objrecordset.getstring (format,n,coldel,rowdel,nullexpr)
parameter Parameters Description Description
Format Optional. A stringformatenum value that specifies the format when retrieving a Recordset as a string
Optional parameters. Specify a
N

Optional. The number of rows to is converted in the Recordset
Recordsetstringformatenum value. It is used to specify the format for extracting recordsets
Coldel Optional. The If format is set to adclipstring it is a column delimiter. Otherwise it is the tab character
Optional parameters. If the format[format value is set to adClipString, then it is a column-defining character; In addition, it is a tab[tab]
Rowdel Optional. The If format is set to adclipstring it is a row delimiter. Otherwise it is the carriage return character
Optional parameters. Optional parameters. If the format[format value is set to adClipString, then it is a row-defining character; In addition, it is a carriage return [carriage returns]
nullexpr Optional. The If format is set to adclipstring it's an expression used instead of a null value. Otherwise it is a empty string
Optional parameters. Optional parameters. If the format[format value is set to adClipString, then it is an expression that replaces the null value, except that it is a null character
Case
To create an HTML table with data from a recordset, we have need to use three of the parameters above:
We can create an HTML-formatted recordset datasheet by just one of the three parameters above:

Coldel-the HTML to use as a column-separator
coldel– use HTML format as column separator
Rowdel-the HTML to use as a row-separator
rowdel– using HTML format line delimiters
Nullexpr-the HTML to use if a column is NULL
nullexpr– If column is empty, use HTML
Note:the GetString () is an ADO 2.0 feature.
In the following case, we will use the GetString () method to retain the recordset as a string:

Copy Code code as follows:

<body><%
Set Conn=server.createobject ("ADODB. Connection ")
Conn. Provider= "Microsoft.Jet.OLEDB.4.0"
Conn. Open "C:/webdata/northwind.mdb" Set rs = Server.CreateObject ("Adodb.recordset")
Rs. Open "Select Companyname, ContactName from Customers", Connstr=rs. GetString (,, "</td><td>", "</td></tr><tr><td>", "")
%><table border= "1" width= "100%" >
<tr>
<td><%response.write (str)%></td>
</tr>
</table><%
Rs.close
Conn.close
Set rs = NothingSet conn = nothing%></body>

Constant
Constant		 Value
Value		 Description
Describe
adClipString 2 delimits rows by the Rowdel parameter, columns by the Coldel parameter, and null values by the NULLEXPR
Specify Rowdel parameters to define rows (records), define columns (fields) by Coldel parameters, and define null values by NULLEXPR parameters
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