DataList中TextBox onfocus調用後台void靜態方法及擷取相應行數

昨天在某一論壇上看到的。Insus.NET嘗試做了一下，算是練習了。

Insus.NET的測試示範：

xxx.aspx: 複製代碼 代碼如下:<asp:DataList ID="dlItemGeneral" runat="server" CellPadding="0" CellSpacing="0" Width="100%"
OnItemDataBound="dlItemGeneral_ItemDataBound">
<ItemTemplate>
<asp:Table ID="Table1" runat="server" CssClass="table">
<asp:TableRow>
<asp:TableCell CssClass="tableTemplateCell" Width="15%">
物料編碼 <%# Eval("ItemCode") %>
</asp:TableCell>
<asp:TableCell CssClass="tableCell" Width="30%">
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</asp:TableCell>
<asp:TableCell CssClass="tableCell" Width="55%">
</asp:TableCell>
</asp:TableRow>
</asp:Table>
</ItemTemplate>
</asp:DataList>

xxx.aspx.cs:

複製代碼 代碼如下:protected void dlItemGeneral_ItemDataBound(object sender, DataListItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
if (e.Item.FindControl("TextBox1") != null)
{
TextBox textBox = e.Item.FindControl("TextBox1") as TextBox;
textBox.Attributes.Add("OnFocus", "alert('" + GetRowNumber(e) + "'); this.value='" + GetTextBox(e) + "';");
}
}
}
private static string GetRowNumber(DataListItemEventArgs e)
{
return "當前行號為" + (e.Item.ItemIndex + 1).ToString();
}
private static string GetTextBox(DataListItemEventArgs e)
{
return "這是從靜態方法擷取值和當前行索引值為：" + e.Item.ItemIndex.ToString();
}