ButtonColumn.Text 属性

定义

获取或设置在 ButtonColumn 对象的按钮中显示的标题。

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

属性值

ButtonColumn 的按钮中显示的标题。 默认值为空字符串("")。

示例

下面的代码示例演示如何使用 Text 属性为 对象中的 ButtonColumn 按钮指定标题。

<%@ 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 language="C#" runat="server">
 
      DataTable Cart;
      DataView CartView;
 
      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 (Session["DG4_ShoppingCart"] == null) 
         {
            Cart = new DataTable();
            Cart.Columns.Add(new DataColumn("Item", typeof(string)));
            Cart.Columns.Add(new DataColumn("Price", typeof(string)));
            Session["DG4_ShoppingCart"] = Cart;
         }

         else 
         {
            Cart = (DataTable)Session["DG4_ShoppingCart"];
         }    

         CartView = new DataView(Cart);
         ShoppingCart.DataSource = CartView;
         ShoppingCart.DataBind();
 
         if (!IsPostBack) 
         {
            // Load this data only once.
            ItemsGrid.DataSource= CreateDataSource();
            ItemsGrid.DataBind();
         }
      }
 
      void Grid_CartCommand(Object sender, DataGridCommandEventArgs e) 
      {
     
         DataRow dr = Cart.NewRow();
         
         // e.Item is the table row where the command is raised.
         // For bound columns, the value is stored in the Text property of a TableCell.
         TableCell itemCell = e.Item.Cells[2];
         TableCell priceCell = e.Item.Cells[3];
         string item = itemCell.Text;
         string price = priceCell.Text;
          
         if (((Button)e.CommandSource).CommandName == "AddToCart") 
         {
            dr[0] = item;
            dr[1] = price;
            Cart.Rows.Add(dr);
         }

         else 
         {  // Remove from Cart.
         
            CartView.RowFilter = "Item='" + item + "'";
            if (CartView.Count > 0) 
            {     
               CartView.Delete(0);
            }
            CartView.RowFilter = "";
         }

         ShoppingCart.DataBind();
 
      }
 
 
   </script>
 
<head runat="server">
    <title>ButtonColumn Example</title>
</head>
<body>
 
   <form id="form1" runat="server">
 
   <h3>ButtonColumn Example</h3>
 
   <table cellpadding="5">
      <tr valign="top">
         <td>
 
            <b>Product List</b>
 
            <asp:DataGrid id="ItemsGrid"
                 BorderColor="black"
                 BorderWidth="1"
                 CellPadding="3"
                 AutoGenerateColumns="false"
                 OnItemCommand="Grid_CartCommand"
                 runat="server">

               <HeaderStyle BackColor="#00aaaa">
               </HeaderStyle>
 
               <Columns>
 
                  <asp:ButtonColumn 
                       HeaderText="Add to cart" 
                       ButtonType="PushButton" 
                       Text="Add" 
                       CommandName="AddToCart" />
 
                  <asp:ButtonColumn 
                       HeaderText="Remove from cart" 
                       ButtonType="PushButton" 
                       Text="Remove" 
                       CommandName="RemoveFromCart" />
 
                  <asp:BoundColumn 
                       HeaderText="Item" 
                       DataField="StringValue"/>

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

                     <ItemStyle HorizontalAlign="right">
                     </ItemStyle>

                  </asp:BoundColumn>   
 
               </Columns>
 
            </asp:DataGrid>
 
         </td>
         <td>
 
            <b>Shopping Cart</b>
 
            <asp:DataGrid id="ShoppingCart" 
                 runat="server"
                 BorderColor="black"
                 BorderWidth="1"
                 GridLines="Both"
                 ShowFooter="false"
                 CellPadding="3"
                 CellSpacing="0">

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

            </asp:DataGrid> 
 
         </td>
      </tr>
 
   </table>
 
   </form>
 
</body>
</html>
<%@ 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 language="VB" runat="server">
        Dim Cart As DataTable
        Dim CartView As DataView

        Function CreateDataSource() As ICollection
            Dim dt As New DataTable()
            Dim dr As DataRow
            
            dt.Columns.Add(New DataColumn("IntegerValue", GetType(Int32)))
            dt.Columns.Add(New DataColumn("StringValue", GetType(String)))
            dt.Columns.Add(New DataColumn("CurrencyValue", GetType(Double)))
            
            Dim i As Integer
            For i = 0 To 8
                dr = dt.NewRow()
                
                dr(0) = i
                dr(1) = "Item " + i.ToString()
                dr(2) = 1.23 *(i + 1)
                
                dt.Rows.Add(dr)
            Next i
            
            Dim dv As New DataView(dt)
            CreateDataSource = dv
        End Function

        Sub Page_Load (sender As Object, e As EventArgs)
            If Session("DG4_ShoppingCart") Is Nothing Then
                Cart = New DataTable()
                Cart.Columns.Add(New DataColumn("Item", GetType(String)))
                Cart.Columns.Add(New DataColumn("Price", GetType(String)))
                Session("DG4_ShoppingCart") = Cart
            
            Else
                Cart = CType(Session("DG4_ShoppingCart"), DataTable)
            End If
            
            CartView = New DataView(Cart)
            ShoppingCart.DataSource = CartView
            ShoppingCart.DataBind()
            
            If Not IsPostBack Then
                ' Load this data only once.
                ItemsGrid.DataSource = CreateDataSource()
                ItemsGrid.DataBind()
            End If
        End Sub

        Sub Grid_CartCommand(sender As Object, e As DataGridCommandEventArgs)
            Dim dr As DataRow = Cart.NewRow()
            
            ' e.Item is the table row where the command is raised.
            ' For bound columns, the value is stored in the Text property of the TableCell.
            Dim itemCell As TableCell = e.Item.Cells(2)
            Dim priceCell As TableCell = e.Item.Cells(3)
            Dim item As String = itemCell.Text
            Dim price As String = priceCell.Text
            
            If CType(e.CommandSource, Button).CommandName = "AddToCart" Then
                dr(0) = item
                dr(1) = price
                Cart.Rows.Add(dr)
            
            Else 

                ' Remove from Cart.
                CartView.RowFilter = "Item" + ChrW(61) + "'" + item + "'"
                If CartView.Count > 0 Then
                    CartView.Delete(0)
                End If
                CartView.RowFilter = ""
            End If
            
            ShoppingCart.DataBind()
        End Sub 
  </script>
 
<head runat="server">
    <title>ButtonColumn Example</title>
</head>
<body>
 
   <form id="form1" runat="server">
 
   <h3>ButtonColumn Example</h3>
 
   <table cellpadding="5">
      <tr valign="top">
         <td>
 
            <b>Product List</b>
 
            <asp:DataGrid id="ItemsGrid"
                 BorderColor="black"
                 BorderWidth="1"
                 CellPadding="3"
                 AutoGenerateColumns="false"
                 OnItemCommand="Grid_CartCommand"
                 runat="server">

               <HeaderStyle BackColor="#00aaaa">
               </HeaderStyle>
 
               <Columns>
 
                  <asp:ButtonColumn 
                       HeaderText="Add to cart" 
                       ButtonType="PushButton" 
                       Text="Add" 
                       CommandName="AddToCart" />
 
                  <asp:ButtonColumn 
                       HeaderText="Remove from cart" 
                       ButtonType="PushButton" 
                       Text="Remove" 
                       CommandName="RemoveFromCart" />
 
                  <asp:BoundColumn 
                       HeaderText="Item" 
                       DataField="StringValue"/>

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

                     <ItemStyle HorizontalAlign="right">
                     </ItemStyle>

                  </asp:BoundColumn>   
 
               </Columns>
 
            </asp:DataGrid>
 
         </td>
         <td>
 
            <b>Shopping Cart</b>
 
            <asp:DataGrid id="ShoppingCart" 
                 runat="server"
                 BorderColor="black"
                 BorderWidth="1"
                 GridLines="Both"
                 ShowFooter="false"
                 CellPadding="3"
                 CellSpacing="0">

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

            </asp:DataGrid> 
 
         </td>
      </tr>
 
   </table>
 
   </form>
 
</body>
</html>

注解

Text使用 属性可以指定或确定对象的按钮ButtonColumn中显示的标题。

注意

如果设置 Text 属性,则 中的所有 ButtonColumn 按钮共享相同的标题。

或者,可以将 绑定到 ButtonColumn 数据源中的字段。 这样,就可以使用指定字段中的值为列中的按钮显示不同的标题。 DataTextField设置 属性以将 绑定到ButtonColumn数据源中的字段。

此属性的值存储在视图状态中。

设置此属性的值时,可以使用设计器工具自动保存到资源文件。 有关详细信息,请参阅 LocalizableAttribute全球化和本地化

适用于

另请参阅