HyperLinkColumn.FormatDataNavigateUrlValue メソッド
アセンブリ: System.Web (system.web.dll 内)

Dim dataUrlValue As Object Dim returnValue As String returnValue = Me.FormatDataNavigateUrlValue(dataUrlValue)
戻り値
DataNavigateUrlFormatString プロパティで指定された書式で表されるデータ バインドされた URL。

FormatDataNavigateUrlValue メソッドを使用して、DataNavigateUrlFormatString プロパティで指定された書式を使用してデータ バインドされた URL 値を書式設定します。

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次のコード サンプルはシングルファイル コード モデルを使用しており、分離コード ファイルに直接コピーされた場合は正常に動作しない可能性があります。このコード サンプルは、拡張子が .aspx の空のテキスト ファイルにコピーする必要があります。Web フォームのコード モデルの詳細については、「ASP.NET Web ページのコード モデル」を参照してください。 |
<!-- 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. --> <br /><span space="preserve">...</span><br /><%@ Page language="VB" AutoEventWireup="true" %> <%@ Import Namespace="System.Drawing" %> <%@ Import Namespace="System.Data" %> <html> <head> <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) ' 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 ' 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 ' 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) ' Add attributes to the cell. currentCell.Attributes.Add("id", "currentCell" & _ e.Item.ItemIndex.ToString()) currentCell.Attributes.Add("OnClick", _ "Update_currentCell" & _ e.Item.ItemIndex.ToString() & _ "()") End If End Sub </SCRIPT> </HEAD> <body> <form 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 HyperTextColumnCS.aspx. The file should be stored in the same directory as the file DetailsPageCS.aspx described below. --> <br /><span space="preserve">...</span><br /><%@ Page language="C#" AutoEventWireup="true" %> <%@ Import Namespace="System.Drawing" %> <%@ Import Namespace="System.Data" %> <html> <head> <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); // 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; // 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)) { // 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); // Add attributes to the cell. currentCell.Attributes.Add("id", "currentCell" + e.Item.ItemIndex.ToString()); currentCell.Attributes.Add("OnClick", "Update_currentCell" + e.Item.ItemIndex.ToString() + "()"); } } </script> </head> <body> <form 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 DetailsPageVB.aspx. The file should be stored in the same directory as the file HyperTextColumnVB.aspx described above. --> <br /><span space="preserve">...</span><br /><%@ Page language="VB" AutoEventWireup="true" %> <%@ Import Namespace="System.Drawing" %> <%@ Import Namespace="System.Data" %> <html> <head> <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 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>
<!-- 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. --> <br /><span space="preserve">...</span><br /><%@ Page language="c#" AutoEventWireup="true" %> <%@ Import Namespace="System.Drawing" %> <%@ Import Namespace="System.Data" %> <html> <head> <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 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>

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