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<h1>ADO Type Property</h1>
<hr />
<a href="ado_ref_parameter.asp"><img class="navup" src="../images/up.gif" alt="Parameter Object Reference" border="0" /> Complete Parameter Object Reference</a>
<hr />
<p>The Type property sets or returns a <a href="#datatypeenum">DataTypeEnum</a>
value that indicates the type of a Parameter, Field, or a Property object.</p>
<table class="ex" cellspacing="0" border="1" width="100%" cellpadding="3">
<tr>
<th align="left" valign="top" width="20%">Object</th>
<th align="left" valign="top" width="80%">Description of the Type
Property</th>
</tr>
<tr>
<td valign="top">Parameter </td>
<td valign="top"> The Type property has read/write permissions on a Parameter
object
</td>
</tr>
<tr>
<td valign="top">Field </td>
<td valign="top"> <p>The Type property is read/write, with one exception; for new Field objects that
are added to the Fields collection of a Record, this property is read-only
before the Value property has been set and before the provider has called the Update method of the Fields
collection
</p>
</td>
</tr>
<tr>
<td valign="top">Property </td>
<td valign="top"> The Type property is read-only for a Property object
</td>
</tr>
</table>
<h3>Syntax</h3>
<table class="ex" cellspacing="0" border="1" width="100%" cellpadding="3">
<tr>
<td valign="top">
<pre>objectname.Type</pre>
</td>
</tr>
</table>
<h3>Example</h3>
<table class="ex" cellspacing="0" border="1" width="100%" cellpadding="3">
<tr>
<td valign="top">
<p>For a Field object:</p>
<pre><%
set conn=Server.CreateObject("ADODB.Connection")
conn.Provider="Microsoft.Jet.OLEDB.4.0"
conn.Open "c:/webdata/northwind.mdb"</pre>
<pre>set rs = Server.CreateObject("ADODB.Recordset")
rs.open "Select * from orders", conn</pre>
<pre>response.write(rs.Fields(0).Type)</pre>
<pre>rs.Close
conn.close
%></pre>
<p>For a Parameter object:</p>
<pre><%
set comm=Server.CreateObject("ADODB.Command")
set para=Server.CreateObject("ADODB.Parameter")</pre>
<pre>para.Type=adVarChar
para.Size=25
para.Direction=adParamInput
para.Value=varfname</pre>
<pre>comm.Parameters.Append para
%></pre>
<p>For a Property object:</p>
<pre><span class="CODE"><%
</span>set conn=Server.CreateObject("ADODB.Connection")
conn.Provider="Microsoft.Jet.OLEDB.4.0"
conn.Open "c:/webdata/northwind.mdb"</pre>
<pre>set rs = Server.CreateObject("ADODB.Recordset")
rs.open "Select * from orders", conn</pre>
<pre>set prop=Server.CreateObject("ADODB.Property")</pre>
<pre>'Display the property attributes of the Orders Table
<span class="CODE">for each prop in rs.Properties
response.write("Attr:" & prop.Attributes & "<br />")
response.write("Name:" & prop.Name & "<br />")
response.write("Value:" & prop.Value & "<br />")
response.write("Type:" & prop.Type & "<br />")
next</span></pre>
<pre><span class="CODE">rs.close
</span>conn.close
set rs=nothing
set conn=nothing
%></pre>
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<hr />
<a name="datatypeenum"><h3>DataTypeEnum Values</h3></a>
<p>Specifies the data type of a Field, Parameter, or Property object</p>
<table class="ex" cellspacing="0" border="1" width="100%" cellpadding="3">
<tr valign="top">
<th width="30%">Constant</th>
<th width="10%">Value</th>
<th width="60%">Description</th>
</tr>
<tr>
<td>adEmpty</td>
<td>0</td>
<td width="55%">No value</td>
</tr>
<tr>
<td>adSmallInt</td>
<td>2</td>
<td width="55%">A 2-byte signed integer.</td>
</tr>
<tr>
<td>adInteger</td>
<td>3</td>
<td width="55%">A 4-byte signed integer.</td>
</tr>
<tr>
<td>adSingle</td>
<td>4</td>
<td width="55%">A single-precision floating-point value.</td>
</tr>
<tr>
<td>adDouble</td>
<td>5</td>
<td width="55%">A double-precision floating-point value.</td>
</tr>
<tr>
<td>adCurrency</td>
<td>6</td>
<td width="55%">A currency value</td>
</tr>
<tr>
<td>adDate</td>
<td>7</td>
<td width="55%">The number of days since December 30, 1899 + the fraction of a
day.</td>
</tr>
<tr>
<td>adBSTR</td>
<td>8</td>
<td width="55%">A null-terminated character string.</td>
</tr>
<tr>
<td>adIDispatch</td>
<td>9</td>
<td width="55%">A pointer to an <b>IDispatch</b> interface on a COM object. <b class="le">Note: </b>Currently not supported by ADO.
</td>
</tr>
<tr>
<td>adError</td>
<td>10</td>
<td width="55%">A 32-bit error code</td>
</tr>
<tr>
<td>adBoolean</td>
<td>11</td>
<td>A boolean value.</td>
</tr>
<tr>
<td>adVariant</td>
<td>12</td>
<td width="55%">An Automation <b>Variant</b>. <b class="le">Note:</b><b class="le">
</b>Currently not
supported by ADO.
</td>
</tr>
<tr>
<td>adIUnknown</td>
<td>13</td>
<td width="55%">A pointer to an <b>IUnknown</b> interface on a COM
object. <b class="le">Note: </b>Currently not
supported by ADO.
</td>
</tr>
<tr>
<td>adDecimal</td>
<td>14</td>
<td width="55%">An exact numeric value with a fixed precision and
scale.</td>
</tr>
<tr>
<td>adTinyInt</td>
<td>16</td>
<td width="55%">A 1-byte signed integer.</td>
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