在项目中的页面中经常会遇到界面的赋值与取值,特别是页面中项特别多的时候,取值和赋值往往是 体力活。
在组件中添加了一个简单的辅助,取值通过Request.From[“”]来实现,赋值则 document.getElementById(“”).value来实现。
下面我们来看示例代码:
例子是:Northwind数据库的Products表
页面代码:
<!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></title>
</head>
<body>
<form id="form1" runat="server">
ProductName:<asp:TextBox runat="server" ID="txt_ProductName"></asp:TextBox><br />
SupplierID:<asp:TextBox runat="server" ID="txt_SupplierID"></asp:TextBox><br />
CategoryID:<asp:TextBox runat="server" ID="txt_CategoryID"></asp:TextBox><br />
QuantityPerUnit:<asp:TextBox runat="server" ID="txt_QuantityPerUnit"></asp:TextBox><br />
UnitPrice:<asp:TextBox runat="server" ID="txt_UnitPrice"></asp:TextBox><br />
UnitsInStock:<asp:TextBox runat="server" ID="txt_UnitsInStock"></asp:TextBox><br />
UnitsOnOrder:<asp:TextBox runat="server" ID="txt_UnitsOnOrder"></asp:TextBox><br />
ReorderLevel:<asp:TextBox runat="server" ID="txt_ReorderLevel"></asp:TextBox><br />
Discontinued:<asp:CheckBox ID="txt_Discontinued" runat="server" /><br />
<asp:Button ID="Button1" runat="server" Text="提交Insert" OnClick="Button1_Click" />
<asp:GridView ID="gridView" runat="server">
</asp:GridView>
</form>
</body>
</html>
后台赋值代码:
Products product = DbSession.Default.From<Products>().ToFirst();
EntityUtils.SetDocumentValue<Products>(product, "txt_");
再看执行效果:
已经赋值成功了。
具体的实现是通过js来赋值的:
var txt_ProductID=document.getElementById(''txt_ProductID'');if(txt_ProductID) txt_ProductID.value=''1'';
var txt_ProductName=document.getElementById(''txt_ProductName'');if(txt_ProductName) txt_ProductName.value=''char\''\\\\s\'''';
var txt_SupplierID=document.getElementById(''txt_SupplierID'');if(txt_SupplierID) txt_SupplierID.value=''1'';
var txt_CategoryID=document.getElementById(''txt_CategoryID'');if(txt_CategoryID) txt_CategoryID.value=''1'';
var txt_QuantityPerUnit=document.getElementById(''txt_QuantityPerUnit'');if (txt_QuantityPerUnit)txt_QuantityPerUnit.value=''10 boxes x 20 bags'';
var txt_UnitPrice=document.getElementById(''txt_UnitPrice'');if(txt_UnitPrice) txt_UnitPrice.value=''150.8000'';
var txt_UnitsInStock=document.getElementById(''txt_UnitsI
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