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DetailsViewRowCollection.CopyTo Method

Copies all the items from this DetailsViewRowCollection object to the specified Array object, starting at the specified index in the Array.

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

public void CopyTo(
	DetailsViewRow[] array,
	int index


Type: System.Web.UI.WebControls.DetailsViewRow[]

A zero-based Array that receives the copied items from the DetailsViewRowCollection.

Type: System.Int32

The first index in the specified Array to receive the copied contents.

Use this method to copy the items in the DetailsViewRowCollection object into the specified array, starting at the specified index. The array can then be used to access the items in the collection.


You must use a zero-based array for the array parameter.

The following code example demonstrates how to use the CopyTo method to copy the items in a DetailsViewRowCollection object to an array. The array is then iterated through and the value of each row is displayed on the page.

<%@ page language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
<script runat="server">

  void SubmitButton_Click(Object sender, EventArgs e)

    // Use the Count property to determine whether the
    // Rows collection contains any item.
    if (ItemDetailsView.Rows.Count > 0)

      MessageLabel.Text = "The row values are: <br/><br/>";

      // Copy the items in the Rows collection to an array.
      DetailsViewRow[] rowArray = new DetailsViewRow[ItemDetailsView.Rows.Count];
      ItemDetailsView.Rows.CopyTo(rowArray, 0);

      // Iterate though the array and display the value in the
      // first cell of the row.
      foreach (DetailsViewRow row in rowArray)
        // Use the Text property to access the value of 
        // each cell. In this example, the cells in the 
        // first column (index 0) contains the field names, 
        // while the cells in the second column (index 1)
        // contains the field value. 
        MessageLabel.Text += row.Cells[0].Text + " = " +
          row.Cells[1].Text + "<br/>";

      MessageLabel.Text = "No items.";



<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>DetailsViewRowCollection CopyTo Example</title>
    <form id="form1" runat="server">

      <h3>DetailsViewRowCollection CopyTo Example</h3>

      <asp:detailsview id="ItemDetailsView"
          <asp:boundfield datafield="CustomerID"
            headertext="Customer ID"/>
          <asp:boundfield datafield="CompanyName"
            headertext="Company Name"/>
          <asp:boundfield datafield="Address"
          <asp:boundfield datafield="City"
          <asp:boundfield datafield="PostalCode"
            headertext="ZIP Code"/>
          <asp:boundfield datafield="Country"


      <asp:button id="SubmitButton" 
        text="Display Row Values"


      <asp:label id="MessageLabel"

      <!-- This example uses Microsoft SQL Server and connects  -->
      <!-- to the Northwind sample database. Use an ASP.NET     -->
      <!-- expression to retrieve the connection string value   -->
      <!-- from the web.config file.                            -->
      <asp:sqldatasource id="DetailsViewSource"
        selectcommand="Select [CustomerID], [CompanyName], [Address], 
          [City], [PostalCode], [Country] From [Customers]"
          "<%$ ConnectionStrings:NorthWindConnectionString%>" 


.NET Framework

Supported in: 4.6, 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.

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