如何将值从列表传递到gridview行？

Question

我想将列表中的值绑定到gridview行。

我尝试使用下面的代码，但是它绑定了所有星期一字段中列表的最后一个值。

代码.aspx：

 <asp:GridView ID="gridActivity" runat="server" AllowSorting="true" AutoGenerateColumns="false"
         CellPadding="5" CellSpacing="2" BorderStyle="None" 
         BorderColor="#DEBA84" Height="171px" style="margin-left: 0px; margin-right: 0px" Width="780px">
        <FooterStyle ForeColor="#8C4510" 
          BackColor="#F7DFB5"></FooterStyle>
        <PagerStyle ForeColor="#8C4510" 
          HorizontalAlign="Center"></PagerStyle>
        <HeaderStyle Width="10px" Wrap="false" ForeColor="White" Font-Bold="True" 
          BackColor="SteelBlue"></HeaderStyle>
        <Columns>
            <asp:TemplateField HeaderText="Activities">
                <ItemTemplate>
                    <asp:Label ID="lblActivity" runat="server" Text='<%#Eval("ActivityName") %>' CssClass="columnStyle"></asp:Label>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Monday">
                <ItemTemplate>
                    <asp:TextBox ID="txtMon" runat="server" Width ="100%"></asp:TextBox>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Tuesday">
                <ItemTemplate>
                    <asp:TextBox ID="txtTue" runat="server" Width ="100%"></asp:TextBox>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Wednesday">
                <ItemTemplate>
                    <asp:TextBox ID="txtWed" runat="server" Width ="100%"></asp:TextBox>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Thursday">
                <ItemTemplate>
                    <asp:TextBox ID="txtThu" runat="server" Width ="100%"></asp:TextBox>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Friday">
                <ItemTemplate>
                    <asp:TextBox ID="txtFri" runat="server" Width ="100%"></asp:TextBox>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Saturday">
                <ItemTemplate>
                    <asp:TextBox ID="txtSat" runat="server" Width ="100%"></asp:TextBox>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Sunday">
                <ItemTemplate>
                    <asp:TextBox ID="txtSun" runat="server" Width ="100%"></asp:TextBox>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Total">
                <ItemTemplate>
                    <asp:Label ID="lblTotal" runat="server" Width ="100%"></asp:Label>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
<asp:Button ID="btnSubmit" Text="Submit" runat="server" OnClick="btnSubmit_Click" />

代码.cs：

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            DbConnection.Open();
            gridActivity.DataSource = Application["listActivity"];
            gridActivity.DataBind();
            DbConnection.Close();
        }
        if (Application["mondayValues"] != null)
        {
            //Here I can get all the values
            foreach (string mon in Application["mondayValues"] as List<string>)
            {
             //Here is the problem
                foreach (GridViewRow row in gridActivity.Rows)
                {
                    TextBox txtMon = (TextBox)row.FindControl("txtMon");
                    txtMon.Text = mon;
                }
            }            
        }
    }

在下面的代码中，我可以获取所有星期一的行值并存储到Application [“monday”]

中

    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        foreach(GridViewRow row in gridActivity.Rows)
        {
            TextBox txtMon = (TextBox)row.FindControl("txtMon");
            Application["mondayValues"] = txtMon.Text;
            mondayData = new MondayData { MondayValue = txtMon.Text };
            listMonday.Add(txtMon.Text);
        }
        Application["mondayValues"] = listMonday;
    }

Answer 1

您的问题是您为所有网格线重复每条数据线的写入过程。这样，您的最后一个值将被写入所有网格线。

//Here I can get all the values
foreach (string mon in Application["mondayValues"] as List<string>)
{

   foreach (GridViewRow row in gridActivity.Rows)
   {
      // PSEUDO CODE
      // if ( row.Text != null )
      // next row
      // else
      // Fill Row with text and break foreach
   }
}