共用方式為


DataControlField.HeaderImageUrl 屬性

定義

取得或設定顯示在資料控制項欄位的標頭項目中之影像的 URL。

public:
 virtual property System::String ^ HeaderImageUrl { System::String ^ get(); void set(System::String ^ value); };
public virtual string HeaderImageUrl { get; set; }
member this.HeaderImageUrl : string with get, set
Public Overridable Property HeaderImageUrl As String

屬性值

String

字串,表示顯示在 DataControlField 的標頭項目中之影像的完整或相對 URL。

範例

下列程式碼範例示範如何以宣告方式設定 HeaderImageUrl 資料行的 ButtonField 屬性,該資料行會在控制項的資料行標頭中 GridView 顯示影像,而不是標頭文字。

<%@ 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>ASP.NET Example</title>
</head>
<body>
  <form id="form1" runat="server">
    <asp:sqldatasource
      id="SqlDataSource1"
      runat="server"
      connectionstring="<%$ ConnectionStrings:MyNorthwind%>"
      selectcommand="SELECT EmployeeID, FirstName, LastName, Title, Region FROM Employees">
    </asp:sqldatasource>

    <asp:gridview
      id="GridView1"
      runat="server"
      allowpaging="True"
      datasourceid="SqlDataSource1"
      allowsorting="True"
      width="472px">
        <columns>

          <asp:buttonfield
            headerimageurl="http://www.microsoft.com/homepage/gif/bnr-microsoft.gif"
            text="ClickMe"
            showheader="True"
            buttontype="Button">
          </asp:buttonfield>

        <asp:hyperlinkfield
          target="http://msdn.microsoft.com/"
          headertext="Link To Info"
          text="MyLink">
            <headerstyle backcolor="Yellow">
            </headerstyle>
        </asp:hyperlinkfield>

      </columns>
    </asp:gridview>

  </form>
</body>
</html>
<%@ page language="VB" %>
<!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>ASP.NET Example</title>
</head>
<body>
  <form id="form1" runat="server">
    <asp:sqldatasource
      id="SqlDataSource1"
      runat="server"
      connectionstring="<%$ ConnectionStrings:MyNorthwind%>"
      selectcommand="SELECT EmployeeID, FirstName, LastName, Title, Region FROM Employees">
    </asp:sqldatasource>

    <asp:gridview
      id="GridView1"
      runat="server"
      allowpaging="True"
      datasourceid="SqlDataSource1"
      allowsorting="True"
      width="472px">
        <columns>

          <asp:buttonfield
            headerimageurl="http://www.microsoft.com/homepage/gif/bnr-microsoft.gif"
            text="ClickMe"
            showheader="True"
            buttontype="Button">
          </asp:buttonfield>

        <asp:hyperlinkfield
          target="http://msdn.microsoft.com/"
          headertext="Link To Info"
          text="MyLink">
            <headerstyle backcolor="Yellow">
            </headerstyle>
        </asp:hyperlinkfield>

      </columns>
    </asp:gridview>

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

備註

HeaderImageUrl當您想要在資料控制項的標頭專案中顯示影像,而不是標頭文字時,請設定 屬性。

注意

HeaderText如果同時設定 和 HeaderImageUrl 屬性,則 HeaderImageUrl 屬性具有優先順序。

適用於

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