HyperLinkColumn.FormatDataNavigateUrlValue(Object) Methode

  • Referenz

Definition

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Formatiert eine datengebundene URL mit dem von der DataNavigateUrlFormatString-Eigenschaft angegebenen Format.

protected:
 virtual System::String ^ FormatDataNavigateUrlValue(System::Object ^ dataUrlValue);
protected virtual string FormatDataNavigateUrlValue (object dataUrlValue);
abstract member FormatDataNavigateUrlValue : obj -> string
override this.FormatDataNavigateUrlValue : obj -> string
Protected Overridable Function FormatDataNavigateUrlValue (dataUrlValue As Object) As String

Parameter

dataUrlValue
Object

Die datengebundene URL, die formatiert werden soll.

Gibt zurück

String

Die datengebundene URL in dem von der DataNavigateUrlFormatString-Eigenschaft angegebenen Format.

Beispiele

Hinweis

Das folgende Codebeispiel verwendet das Einzeldateicodemodell und funktioniert möglicherweise nicht ordnungsgemäß, wenn es direkt in eine CodeBehind-Datei kopiert wird. Dieses Codebeispiel muss in eine leere Textdatei mit einer .aspx-Erweiterung kopiert werden. Weitere Informationen zum Web Forms-Codemodell finden Sie unter ASP.NET Web Forms-Seitencodemodell.

<!-- 
This example demonstrates using a hyperlink column. The code below
should be copied into a file called HyperTextColumnCS.aspx.  The file
should be stored in the same directory as the file DetailsPageCS.aspx
described below.
-->

<!-- 
This example demonstrates using a hyperlink column. The code below
should be copied into a file called HyperTextColumnVB.aspx.  The file
should be stored in the same directory as the file DetailsPageVB.aspx
described below.
-->

<%@ Page language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Data" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    private DataView dv;
    private DataTable dt = new DataTable();

    private void Page_Load(object sender, System.EventArgs e)
    {
        // Create a DataTable to use as the data source for 
        // the DataGrid.
        dt.Columns.Add(new DataColumn("ItemNumber"));
        dt.Columns["ItemNumber"].Caption = "Item Number";
        dt.Columns.Add(new DataColumn("Item"));
        dt.Columns["ItemNumber"].Caption = "Item";
        dt.Columns.Add(new DataColumn("Price"));
        dt.Columns["ItemNumber"].Caption = "Price";

        // Add some data to the DataTable.
        DataRow myDataRow;
        for (int i = 0; i < 5; i++)
        {
            myDataRow = dt.NewRow();
            myDataRow[0] = i;
            myDataRow[1] = "Item " + i.ToString();
            myDataRow[2] = 1.23 * (i + 1);
            dt.Rows.Add(myDataRow);
        }
        
        // Use the table to create a DataView.
        dv = new DataView(dt);

//<Snippet4>
        // Create hyperlink columns that contain the item name
        // and price.
        HyperLinkColumn nameCol = new HyperLinkColumn();
        nameCol.DataNavigateUrlField = "ItemNumber";
        nameCol.DataTextField = "Item";
        nameCol.DataNavigateUrlFormatString = 
            "DetailspageCS.aspx?id={0}";
        nameCol.HeaderText = dt.Columns["Item"].Caption;

        HyperLinkColumn priceCol = new HyperLinkColumn();
        priceCol.DataNavigateUrlField = "ItemNumber";
        priceCol.DataTextField = "Price";
        priceCol.DataNavigateUrlFormatString = 
            "DetailspageCS.aspx?id={0}";
        priceCol.DataTextFormatString = "{0:c}";
        priceCol.HeaderText = dt.Columns["Price"].Caption;
//</Snippet4>

        // Add the new columns to the DataGrid.
        DataGrid1.Columns.Add(nameCol);
        DataGrid1.Columns.Add(priceCol);

        // Set the DataView as the data source, and bind 
        // it to the DataGrid.
        DataGrid1.DataSource = dv;
        DataGrid1.DataBind();

    }

    private void DataGrid1_ItemDataBound(object sender, 
        System.Web.UI.WebControls.DataGridItemEventArgs e)
    {
        ListItemType itemType = (ListItemType)e.Item.ItemType;

        if ((itemType != ListItemType.Header) &&
            (itemType != ListItemType.Footer) &&
            (itemType != ListItemType.Separator))
        {

//<Snippet5>
            // Get the IntegerValue cell from the grid's column 
            // collection.
            TableCell currentCell = (TableCell)e.Item.Controls[0];
            DataGrid1.Columns[1].InitializeCell(currentCell, 1,
                ListItemType.Item);
//</Snippet5>

//<Snippet6>
            // Add attributes to the cell.
            currentCell.Attributes.Add("id", "currentCell" + 
                e.Item.ItemIndex.ToString());
            currentCell.Attributes.Add("OnClick",
                "Update_currentCell" +
                e.Item.ItemIndex.ToString() +
                "()");
//</Snippet6>
        }
    }
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
    <head>
    <title>HyperLinkColumn Example</title>
</head>
    <body>
        <form id="form1" runat="server">
            <h3>HyperLinkColumn Example</h3>
                <asp:DataGrid Runat="server" ID="DataGrid1" CellPadding="4"
                    AutoGenerateColumns="False" BorderStyle="None" GridLines="None">
                    <HeaderStyle Font-Bold="True" ForeColor="White" BackColor="Black">
                    </HeaderStyle>
                </asp:DataGrid>
                <p>Click on an item name or price to add the item to your order.</p>
        </form>
    </body>
</html>

<%@ Page language="VB" AutoEventWireup="true" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Data" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    private dv As DataView
    private dt As New DataTable()

    Private Sub Page_Load(sender As Object, e As System.EventArgs)
        ' Create a DataTable to use as the data source for 
        ' the DataGrid.
        dt.Columns.Add(new DataColumn("ItemNumber"))
        dt.Columns("ItemNumber").Caption = "Item Number"
        dt.Columns.Add(new DataColumn("Item"))
        dt.Columns("ItemNumber").Caption = "Item"
        dt.Columns.Add(new DataColumn("Price"))
        dt.Columns("ItemNumber").Caption = "Price"

        ' Add some data to the DataTable.
        Dim myDataRow As DataRow
        Dim i As Integer
        For i = 0 To 4
            myDataRow = dt.NewRow()
            myDataRow(0) = i
            myDataRow(1) = "Item " & i.ToString()
            myDataRow(2) = 1.23 * (i + 1)
            dt.Rows.Add(myDataRow)
        Next i
        
        ' Use the table to create a DataView.
        dv = new DataView(dt)

'<Snippet4>
        ' Create hyperlink columns that contain the item name
        ' and price.
        Dim nameCol As New HyperLinkColumn()
        nameCol.DataNavigateUrlField = "ItemNumber"
        nameCol.DataTextField = "Item"
        nameCol.DataNavigateUrlFormatString = _
            "DetailspageVB.aspx?id={0}"
        nameCol.HeaderText = dt.Columns("Item").Caption

        Dim priceCol As New HyperLinkColumn()
        priceCol.DataNavigateUrlField = "ItemNumber"
        priceCol.DataTextField = "Price"
        priceCol.DataNavigateUrlFormatString = _
            "DetailspageVB.aspx?id={0}"
        priceCol.DataTextFormatString = "{0:c}"
        priceCol.HeaderText = dt.Columns("Price").Caption
'</Snippet4>

        ' Add the new columns to the DataGrid.
        DataGrid1.Columns.Add(nameCol)
        DataGrid1.Columns.Add(priceCol)

        ' Set the DataView as the data source, and bind 
        ' it to the DataGrid.
        DataGrid1.DataSource = dv
        DataGrid1.DataBind()

    End Sub

    Private Sub DataGrid1_ItemDataBound(sender As Object, _
        e As System.Web.UI.WebControls.DataGridItemEventArgs)
        Dim itemType As ListItemType = _
            CType(e.Item.ItemType, ListItemType)

        if itemType <> ListItemType.Header AndAlso _
            itemType <> ListItemType.Footer AndAlso _
            itemType <> ListItemType.Separator Then
            
'<Snippet5>
            ' Get the IntegerValue cell from the grid's column 
            ' collection.
            Dim currentCell As TableCell = _
                CType(e.Item.Controls(0), TableCell)
            DataGrid1.Columns(1).InitializeCell(currentCell, 1, _
                ListItemType.Item)
'</Snippet5>

'<Snippet6>
            ' Add attributes to the cell.
            currentCell.Attributes.Add("id", "currentCell" & _ 
                e.Item.ItemIndex.ToString())
            currentCell.Attributes.Add("OnClick", _
                "Update_currentCell" & _
                e.Item.ItemIndex.ToString() & _
                "()")
'</Snippet6>
        End If
    End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
    <head>
    <title>HyperLinkColumn Example</title>
</head>
    <body>
        <form id="form1" runat="server">
            <h3>HyperLinkColumn Example</h3>
                <asp:DataGrid Runat="server" ID="DataGrid1" CellPadding="4"
                    AutoGenerateColumns="False" BorderStyle="None" GridLines="None">
                    <HeaderStyle Font-Bold="True" ForeColor="White" BackColor="Black">
                    </HeaderStyle>
                </asp:DataGrid>
                <p>Click on an item name or price to add the item to your order.</p>
        </form>
    </body>
</html>

<!-- 
This example demonstrates using a hyperlink column. The code below
should be copied into a file called DetailsPageCS.aspx. The file
should be stored in the same directory as the file HyperTextColumn.CS
described above.
-->

<!-- 
This example demonstrates using a hyperlink column. The code below
should be copied into a file called DetailsPageVB.aspx. The file
should be stored in the same directory as the file HyperTextColumnVB.aspx
described above.
-->

<%@ Page language="c#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Drawing" %>
<%@ 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" >
    <head>
    <title>HyperLinkColumn Example</title>
<script runat="server">
            private DataView dv;
            private DataTable dt = new DataTable();

            private void Page_Load(object sender, System.EventArgs e)
            {
                // Get the item value that was passed on the query string.
                NameValueCollection myCollection = Request.QueryString; 
                string selectedItem = myCollection.Get("id");

                Label1.Text = "Item " + selectedItem + 
                    " has been added to your order.";
            }
        </script>
    </head>
    <body>
        <form id="form1" runat="server">
            <h3>HyperLinkColumn Example</h3>
                <p><asp:Label id="Label1" runat="server">Label</asp:Label></p>
                <p><asp:HyperLink id="HyperLink1" runat="server" 
                    BorderColor="#8080FF" BorderStyle="Groove" ForeColor="Blue"
                    NavigateUrl="HyperTextColumnCS.aspx"> return to items page 
                   </asp:HyperLink></p>
        </form>
    </body>
</html>

<%@ Page language="VB" AutoEventWireup="true" %>
<%@ Import Namespace="System.Drawing" %>
<%@ 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" >
    <head>
    <title>HyperLinkColumn Example</title>
<script runat="server">
            Private dv As DataView
            Private dt As New DataTable()

            Private Sub Page_Load(sender As Object, e As System.EventArgs) _
                Handles MyBase.Load

                ' Get the item value that was passed on the query string.
                Dim myCollection As NameValueCollection = Request.QueryString
                Dim selectedItem As String = myCollection.Get("id")

                Label1.Text = "Item " & selectedItem & _ 
                    " has been added to your order."
            End Sub
        </script>
    </head>
    <body>
        <form id="form1" runat="server">
            <h3>HyperLinkColumn Example</h3>
                <p><asp:Label id="Label1" runat="server">Label</asp:Label></p>
                <p><asp:HyperLink id="HyperLink1" runat="server" 
                    BorderColor="#8080FF" BorderStyle="Groove" ForeColor="Blue"
                    NavigateUrl="HyperTextColumnVB.aspx"> return to items page 
                   </asp:HyperLink></p>
        </form>
    </body>
</html>

Hinweise

Verwenden Sie die FormatDataNavigateUrlValue -Methode, um einen datengebundenen URL-Wert mit dem von der DataNavigateUrlFormatString -Eigenschaft angegebenen Format zu formatieren.

Gilt für:

Weitere Informationen