.NET Framework Class Library
WebControlMergeStyle Method

Copies any nonblank elements of the specified style to the Web control, but will not overwrite any existing style elements of the control. This method is used primarily by control developers.

Namespace:   System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)
Syntax
Public Sub MergeStyle ( _
	s As [%$TOPIC/h2hf85ec_en-us_VS_110_1_0_0_0_0%] _
)
public void MergeStyle(
	[%$TOPIC/h2hf85ec_en-us_VS_110_1_0_1_0_0%] s
)
public:
void MergeStyle(
	[%$TOPIC/h2hf85ec_en-us_VS_110_1_0_2_0_0%]^ s
)
member MergeStyle : 
        s:[%$TOPIC/h2hf85ec_en-us_VS_110_1_0_3_0_0%] -> unit

Parameters

s
Type: System.Web.UI.WebControlsStyle

A Style that represents the style to be copied.

Examples

The following example demonstrates how to use the MergeStyle method to merge a style with the style of a DataGrid control.

NoteNote

The following code sample uses the single-file code model and may not work correctly if copied directly into a code-behind file. This code sample must be copied into an empty text file that has an .aspx extension. For more information on the Web Forms code model, see ASP.NET Web Forms Page Code Model.


<%@ Page Language="VB" AutoEventWireup="True" %>

<%@ Import Namespace="System.Data" %>

<!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" >
   <script runat="server">

      Private Function CreateDataSource() As ICollection 

         Dim dt As DataTable = New DataTable
         Dim dr As DataRow
         Dim dv As DataView
         Dim i As Integer

         dt.Columns.Add(New DataColumn("IntegerValue", GetType(Integer)))
         dt.Columns.Add(New DataColumn("StringValue", GetType(String)))
         dt.Columns.Add(New DataColumn("CurrencyValue", GetType(Double)))

         for i = 0 to 9  

            dr = dt.NewRow()

            dr(0) = i
            dr(1) = "Item " + i.ToString()
            dr(2) = 1.23 * (i + 1)

            dt.Rows.Add(dr)

         next i

         dv = New DataView(dt)
         CreateDataSource = dv

      End Function

      Private Sub Page_Load(sender As Object, e As EventArgs) 

         If Not IsPostBack Then 
            ' Load this data only once.
            ItemsGrid.DataSource = CreateDataSource()
            ItemsGrid.DataBind()
         End If

      End Sub

      Private Sub Button_Click(sender As Object, e As EventArgs) 

         Dim myStyle As Style = new Style()
         myStyle.ForeColor = System.Drawing.Color.Red

         ItemsGrid.MergeStyle(myStyle)

      End Sub

   </script>

<head runat="server">
    <title>WebControl MergeStyle Example</title>
</head>
<body>

   <form id="form1" runat="server">

      <h3>WebControl MergeStyle Example</h3>

      <b>Product List</b>

      <asp:DataGrid id="ItemsGrid"
           BorderColor="black"
           BorderWidth="1"
           BackColor="Yellow"
           CellPadding="3"
           AutoGenerateColumns="false"
           runat="server">

         <HeaderStyle BackColor="#00aaaa">
         </HeaderStyle>

         <Columns>

            <asp:BoundColumn
                 HeaderText="Number" 
                 DataField="IntegerValue">
            </asp:BoundColumn>

            <asp:BoundColumn
                 HeaderText="Description" 
                 DataField="StringValue">
            </asp:BoundColumn>

            <asp:BoundColumn
                 HeaderText="Price" 
                 DataField="CurrencyValue" 
                 DataFormatString="{0:c}">
            </asp:BoundColumn>

         </Columns>

      </asp:DataGrid>

      <br /><br />

      <asp:Button id="Button1" 
           Text="Merge Custom Style"
           OnClick="Button_Click"
           runat="server"/>

   </form>

</body>
</html>

<%@ Page Language="C#" AutoEventWireup="True" %>

<%@ Import Namespace="System.Data" %>

<!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" >
   <script runat="server">

      ICollection CreateDataSource() 
      {
         DataTable dt = new DataTable();
         DataRow dr;

         dt.Columns.Add(new DataColumn("IntegerValue", typeof(Int32)));
         dt.Columns.Add(new DataColumn("StringValue", typeof(string)));
         dt.Columns.Add(new DataColumn("CurrencyValue", typeof(double)));

         for (int i = 0; i < 9; i++) 
         {
            dr = dt.NewRow();

            dr[0] = i;
            dr[1] = "Item " + i.ToString();
            dr[2] = 1.23 * (i + 1);

            dt.Rows.Add(dr);
         }

         DataView dv = new DataView(dt);
         return dv;
      }

      void Page_Load(Object sender, EventArgs e) 
      {
         if (!IsPostBack) 
         {
            // Load this data only once.
            ItemsGrid.DataSource= CreateDataSource();
            ItemsGrid.DataBind();
         }
      }

      void Button_Click(Object sender, EventArgs e) 
      {
         Style myStyle = new Style();
         myStyle.ForeColor = System.Drawing.Color.Red;

         ItemsGrid.MergeStyle(myStyle);
      }

   </script>

<head runat="server">
    <title>WebControl MergeStyle Example</title>
</head>
<body>

   <form id="form1" runat="server">

      <h3>WebControl MergeStyle Example</h3>

      <b>Product List</b>

      <asp:DataGrid id="ItemsGrid"
           BorderColor="black"
           BorderWidth="1"
           BackColor="Yellow"
           CellPadding="3"
           AutoGenerateColumns="false"
           runat="server">

         <HeaderStyle BackColor="#00aaaa">
         </HeaderStyle>

         <Columns>

            <asp:BoundColumn
                 HeaderText="Number" 
                 DataField="IntegerValue">
            </asp:BoundColumn>

            <asp:BoundColumn
                 HeaderText="Description" 
                 DataField="StringValue">
            </asp:BoundColumn>

            <asp:BoundColumn
                 HeaderText="Price" 
                 DataField="CurrencyValue" 
                 DataFormatString="{0:c}">
            </asp:BoundColumn>

         </Columns>

      </asp:DataGrid>

      <br /><br />

      <asp:Button id="Button1" 
           Text="Merge Custom Style"
           OnClick="Button_Click"
           runat="server"/>

   </form>

</body>
</html>
Version Information

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0
Platforms

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.