Export (0) Print
Expand All

ParameterCollection.Insert Method

Inserts the specified Parameter object into the ParameterCollection collection at the specified index.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

public void Insert(
	int index,
	Parameter parameter


Type: System.Int32

The zero-based index at which the Parameter is inserted.

Type: System.Web.UI.WebControls.Parameter

The Parameter to insert.


index is less than zero.


index is greater than Count.

The following code example demonstrates how to use the Insert method to add a Parameter object to a ParameterCollection collection at a specific location. In this example, several QueryStringParameter objects are added to a SelectParameters collection, one QueryStringParameter is inserted into the collection, and the order of the collection is printed when the page loads.

<%@page Language="C#" %>
<SCRIPT runat="server">
private void Page_Load(object sender, EventArgs e) {

    SqlDataSource aSqlDataSource = new SqlDataSource();

    // Security Note: The SqlDataSource uses a QueryStringParameter,
    // Security Note: which does not perform validation of input from the client.

    QueryStringParameter qs1 =
        new QueryStringParameter("QueryStringParam1","requestfield1");

    QueryStringParameter qs3 =
        new QueryStringParameter("QueryStringParam3","requestfield3");

    // Insert
    aSqlDataSource.SelectParameters.Insert(1, new QueryStringParameter("QueryStringParam2", "requestField2") );

    // Iterate through the ParameterCollection and print out the
    // names of the Parameters contained by it.
    foreach (Parameter aParameter in aSqlDataSource.SelectParameters) {
        Response.Write(aParameter.Name + "<BR>");

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

© 2014 Microsoft