循环添加列的问题- 可以学习下如何动态创建Table 然后绑定gridview
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.Sql" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
using (DataTable dt = new DataTable())
{
dt.Columns.Add("money");
dt.Columns.Add("date");
dt.Rows.Add(dt.NewRow());
dt.Rows.Add(dt.NewRow());
Session["dt"] = dt;
this.GridView1.DataSource = dt;
this.GridView1.DataBind();
}
}
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
using (DataTable dt = (DataTable)Session["dt"])
{
dt.Rows.Add(dt.NewRow());
Session["dt"] = dt;
this.GridView1.DataSource = dt;
this.GridView1.DataBind();
}
}
protected void Button1_Click(object sender, EventArgs e)
{
using (SqlConnection conn = new SqlConnection(connectionString))
{
conn.Open();
using (SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM table_name WHERE 1=2", conn))
{
using (SqlCommandBuilder cb = new SqlCommandBuilder(da))
{
using (DataTable dt = (DataTable)Session["dt"])
{
for (int i = 0; i < dt.Rows.Count; i++)
{
dt.Rows[i][0] = ((TextBox)this.GridView1.Rows[i].FindControl("TextBox1")).Text;
dt.Rows[i][1] = ((TextBox)this.GridView1.Rows[i].FindControl("TextBox2")).Text;
}
da.Update(dt);
dt.AcceptChanges();
Session["dt"] = dt;
this.GridView1.DataSource = dt;
this.GridView1.DataBind();
}
}
}
conn.Close();
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="lblTheme" runat="server" Text="订单对应主题："></asp:Label>
<asp:Label ID="lblCode" runat="server" Text="订单号："></asp:Label><br />
<asp:Label ID="lblSum" runat="server" Text="总金额："></asp:Label>
<asp:LinkButton ID="LinkButton1" runat="server" Text="添加更多" OnClick="LinkButton1_Click"></asp:LinkButton>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" ShowHeader="false">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:Label ID="Label1" runat="server">第<%#Container.DataItemIndex + 1%>次回款金额：</asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text="<%#Bind('money')%>"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:Label ID="Label2" runat="server">回款时间：</asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox ID="TextBox2" runat="server" Text="<%#Bind('date')%>"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<asp:Button ID="Button1" runat="server" Text="提交" OnClick="Button1_Click" />
</div>
</form>
</body>
</html>
