HyperLinkField.DataTextField Propriedade

Referência

Definição

Namespace:: System.Web.UI.WebControls

Assembly:: System.Web.dll

Importante

Algumas informações se referem a produtos de pré-lançamento que podem ser substancialmente modificados antes do lançamento. A Microsoft não oferece garantias, expressas ou implícitas, das informações aqui fornecidas.

Obtém ou define o nome do campo da fonte de dados que contém o texto a ser exibido nas legendas de hiperlink no objeto HyperLinkField.

public:
 virtual property System::String ^ DataTextField { System::String ^ get(); void set(System::String ^ value); };

[System.ComponentModel.TypeConverter("System.Web.UI.Design.DataSourceViewSchemaConverter, System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
public virtual string DataTextField { get; set; }

[System.ComponentModel.TypeConverter("System.Web.UI.Design.DataSourceViewSchemaConverter, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
public virtual string DataTextField { get; set; }

[<System.ComponentModel.TypeConverter("System.Web.UI.Design.DataSourceViewSchemaConverter, System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")>]
member this.DataTextField : string with get, set

[<System.ComponentModel.TypeConverter("System.Web.UI.Design.DataSourceViewSchemaConverter, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")>]
member this.DataTextField : string with get, set

Public Overridable Property DataTextField As String

Valor da propriedade

String

O nome do campo da fonte de dados que contém os valores a serem exibidos para as legendas de hiperlink no HyperLinkField. O padrão é uma cadeia de caracteres vazia (""), que indica que essa propriedade não está definida.

Atributos: TypeConverterAttribute

Exemplos

O exemplo de código a seguir demonstra como usar a DataTextField propriedade para especificar um campo da fonte de dados a ser associado às legendas de hiperlink exibidas em um HyperLinkField objeto.


<%@ 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>HyperLinkField DataBinding Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>HyperLinkField DataBinding Example</h3>
                    
      <!-- Populate the Columns collection declaratively. -->
      <!-- Bind the CompanyName and HomePage fields from the   -->
      <!-- Northwind database to the caption and URL of the    -->
      <!-- hyperlinks in the HyperLinkField field column. Note -->
      <!-- that the URLs specified in the Northwind database   -->
      <!-- might not be valid URLs.                            -->
      <asp:gridview id="SuppliersGridView" 
        datasourceid="SuppliersSqlDataSource" 
        autogeneratecolumns="false"
        runat="server">
                
        <columns>
                
          <asp:hyperlinkfield datatextfield="CompanyName"
            datanavigateurlfields="HomePage"          
            headertext="Company Name"
            target="_blank" />
          <asp:boundfield datafield="City" 
            headertext="City"/>
                 
        </columns>
                
      </asp:gridview>
            
      <!-- This example uses Microsoft SQL Server and connects -->
      <!-- to the Northwind sample database.                   -->
      <asp:sqldatasource id="SuppliersSqlDataSource"  
        selectcommand="SELECT [SupplierID], [CompanyName], [City], [HomePage] FROM [Suppliers]"
        connectionstring="server=localhost;database=northwind;integrated security=SSPI"
        runat="server">
      </asp:sqldatasource>
            
    </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>HyperLinkField DataBinding Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>HyperLinkField DataBinding Example</h3>
                    
      <!-- Populate the Columns collection declaratively. -->
      <!-- Bind the CompanyName and HomePage fields from the   -->
      <!-- Northwind database to the caption and URL of the    -->
      <!-- hyperlinks in the HyperLinkField field column. Note -->
      <!-- that the URLs specified in the Northwind database   -->
      <!-- might not be valid URLs.                            -->
      <asp:gridview id="SuppliersGridView" 
        datasourceid="SuppliersSqlDataSource" 
        autogeneratecolumns="false"
        runat="server">
                
        <columns>
                
          <asp:hyperlinkfield datatextfield="CompanyName"
            datanavigateurlfields="HomePage"          
            headertext="Company Name"
            target="_blank" />
          <asp:boundfield datafield="City" 
            headertext="City"/>
                 
        </columns>
                
      </asp:gridview>
            
      <!-- This example uses Microsoft SQL Server and connects -->
      <!-- to the Northwind sample database.                   -->
      <asp:sqldatasource id="SuppliersSqlDataSource"  
        selectcommand="SELECT [SupplierID], [CompanyName], [City], [HomePage] FROM [Suppliers]"
        connectionstring="server=localhost;database=northwind;integrated security=SSPI"
        runat="server">
      </asp:sqldatasource>
            
    </form>
  </body>
</html>

O exemplo de código a seguir demonstra como usar a DataTextFormatString propriedade para formatar os valores associados às legendas de hiperlink exibidas em um HyperLinkField objeto. Os valores são formatados como moeda.


<%@ 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>HyperLinkField Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>HyperLinkField Example</h3>
                    
      <!-- Populate the Columns collection declaratively. -->
      <!-- The UnitPrice field values are bound to the         -->
      <!-- captions of the hyperlinks in the HyperLinkField    -->
      <!-- field column, formatted as currency. The ProductID  -->
      <!-- field values are bound to the navigate URLs of the  -->
      <!-- hyperlinks. However, instead of being the actual    -->
      <!-- URL values, the product ID is passed to the linked  -->
      <!-- page as a parameter in the URL specified by the     -->
      <!-- DataNavigateUrlFormatString property.               -->
      <asp:gridview id="OrdersGridView" 
        datasourceid="OrdersSqlDataSource" 
        autogeneratecolumns="false"
        runat="server">
                
        <columns>
                
          <asp:boundfield datafield="OrderID" 
            headertext="Order ID"/>
          <asp:boundfield datafield="ProductID" 
            headertext="Product ID"/>
          <asp:hyperlinkfield datatextfield="UnitPrice"
            datatextformatstring="{0:c}"
            datanavigateurlfields="ProductID"
            datanavigateurlformatstring="~\details.aspx?ProductID={0}"          
            headertext="Price"
            target="_blank" />
          <asp:boundfield datafield="Quantity" 
            headertext="Quantity"/>
                 
        </columns>
                
      </asp:gridview>
            
      <!-- This example uses Microsoft SQL Server and connects -->
      <!-- to the Northwind sample database.                   -->
      <asp:sqldatasource id="OrdersSqlDataSource"  
        selectcommand="SELECT [OrderID], [ProductID], [UnitPrice], [Quantity] FROM [Order Details]"
        connectionstring="server=localhost;database=northwind;integrated security=SSPI"
        runat="server">
      </asp:sqldatasource>
            
    </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>HyperLinkField DataTextFormatString and DataNavigateUrlFormatString Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>HyperLinkField DataTextFormatString and DataNavigateUrlFormatString Example</h3>
                    
      <!-- Populate the Columns collection declaratively. -->
      <!-- The UnitPrice field values are bound to the         -->
      <!-- captions of the hyperlinks in the HyperLinkField    -->
      <!-- field column, formatted as currency. The ProductID  -->
      <!-- field values are bound to the navigate URLs of the  -->
      <!-- hyperlinks. However, instead of being the actual    -->
      <!-- URL values, the product ID is passed to the linked  -->
      <!-- page as a parameter in the URL specified by the     -->
      <!-- DataNavigateUrlFormatString property.               -->
      <asp:gridview id="OrdersGridView" 
        datasourceid="OrdersSqlDataSource" 
        autogeneratecolumns="false"
        runat="server">
                
        <columns>
                
          <asp:boundfield datafield="OrderID" 
            headertext="Order ID"/>
          <asp:boundfield datafield="ProductID" 
            headertext="Product ID"/>
          <asp:hyperlinkfield datatextfield="UnitPrice"
            datatextformatstring="{0:c}"
            datanavigateurlfields="ProductID"
            datanavigateurlformatstring="~\details.aspx?ProductID={0}"          
            headertext="Price"
            target="_blank" />
          <asp:boundfield datafield="Quantity" 
            headertext="Quantity"/>
                 
        </columns>
                
      </asp:gridview>
            
      <!-- This example uses Microsoft SQL Server and connects -->
      <!-- to the Northwind sample database.                   -->
      <asp:sqldatasource id="OrdersSqlDataSource"  
        selectcommand="SELECT [OrderID], [ProductID], [UnitPrice], [Quantity] FROM [Order Details]"
        connectionstring="server=localhost;database=northwind;integrated security=SSPI"
        runat="server">
      </asp:sqldatasource>
            
    </form>
  </body>
</html>

Comentários

Use a DataTextField propriedade para especificar o nome do campo que contém o texto a ser exibido para as legendas de hiperlink no HyperLinkField objeto.

Em vez de usar essa propriedade para associar as legendas de hiperlink a um campo, você pode usar a Text propriedade para definir as legendas de hiperlink como um valor estático. Com essa opção, cada hiperlink compartilha a mesma legenda.

Observação

Se as propriedades e Text as DataTextField propriedades estiverem definidas, a DataTextField propriedade terá precedência.

Aplica-se a

Compartilhar via