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CommandField.ShowEditButton Property

Gets or sets a value indicating whether an Edit button is displayed in a CommandField field.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)
public virtual bool ShowEditButton { get; set; }

Property Value

Type: System.Boolean
true to display an Edit button in a CommandField; otherwise, false. The default is false.

Use the ShowEditButton property to specify whether an Edit button is displayed in the CommandField field for each record in the data-source control. The Edit button allows you to edit the values of a record.

When the user clicks an Edit button, input controls are displayed for each field in the record. The Edit button for the record is replaced with an Update button and a Cancel button, and all other command buttons for the record are hidden. Clicking the Update button updates the record with the new values in the data source, whereas clicking the Cancel button cancels the operation.

NoteNote

When a data-bound control is used in combination with a data source control (such as a SqlDataSource control), the data-bound control can take advantage of the data source control's capabilities and provide automatic updating functionality. For other data sources, you must provide the routines to perform the update operation during the appropriate event for the data-bound control.

When the ButtonType property of a CommandField field is set to ButtonType.Button or ButtonType.Link, use the EditText property to specify the text to display for an Edit button. Alternatively, you can display an image by first setting the ButtonType property to ButtonType.Image and then setting the EditImageUrl property.

The following code example demonstrates how to use the ShowEditButton property to display an Edit button for each record in a GridView control.


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

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>CommandField Example</title>
</head>
<body>
    <form id="form1" runat="server">

      <h3>CommandField Example</h3>

      <asp:gridview id="CustomersGridView" 
        datasourceid="CustomersSqlDataSource" 
        autogeneratecolumns="false"
        datakeynames="CustomerID"  
        runat="server">

        <columns>
          <asp:commandfield showeditbutton="true"
            buttontype="Image"
            editimageurl="~\Images\EditButton.jpg"
            cancelimageurl="~\Images\CancelButton.jpg"
            updateimageurl="~\Images\UpdateButton.jpg"
            headertext="Edit Controls"/>
          <asp:boundfield datafield="CustomerID"
            headertext="Customer ID" />
          <asp:boundfield datafield="CompanyName"
            headertext="Company Name"/>
          <asp:boundfield datafield="Address"
            headertext="Address"/>
          <asp:boundfield datafield="City"
            headertext="City"/>
          <asp:boundfield datafield="PostalCode"
            headertext="ZIP Code"/>
          <asp:boundfield datafield="Country"
            headertext="Country"/>
        </columns>

      </asp:gridview>

      <!-- 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="CustomersSqlDataSource"  
        selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]"
        updatecommand="Update Customers Set CompanyName=@CompanyName, Address=@Address, City=@City, PostalCode=@PostalCode, Country=@Country Where (CustomerID = @CustomerID)"
        connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
        runat="server">
      </asp:sqldatasource>

    </form>
  </body>
</html>

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

Windows Phone 8.1, Windows Phone 8, 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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