ParameterCollection.Insert Method (Int32, Parameter)


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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.

Exception Condition

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
Available since 2.0
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