當我按下按鈕時，如何了解哪些列有價值？
[英]How can I understand which columns value when I press the button?
問題描述
我嘗試用aspx編寫數據網格。 我的數據庫中有一列名為“ PROJECT_NAME”。 我希望這些列在我的數據網格中，然后添加第二列（編輯框）以為每個項目添加值。 這全部在網格視圖中，我在表單中添加按鈕。 當我按下按鈕時，如何理解哪些列值屬於哪個項目？
我的意思是，例如
- 行值：項目2列值：50
- 行值：B項目2列值：60
- 行值：C項目2列值：70
我想知道何時按下按鈕1。項目值50我將如何理解？
這是我的aspx代碼：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!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>
<style type="text/css">
.style1
{
width: 78px;
}
.style2
{
width: 426px;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div style="height: 561px">
<table style="width: 100%; height: 556px;">
<tr>
<td>
</td>
<td>
<table style="width:100%;">
<tr>
<td class="style1">
Ay</td>
<td>
<asp:TextBox ID="ay" runat="server"></asp:TextBox>
</td>
<td>
</td>
</tr>
<tr>
<td class="style1">
Yıl</td>
<td>
<asp:TextBox ID="yil" runat="server"></asp:TextBox>
</td>
<td>
</td>
</tr>
<tr>
<td class="style1">
</td>
<td>
</td>
<td>
</td>
</tr>
</table>
</td>
<td>
</td>
</tr>
<tr>
<td>
</td>
<td>
<asp:GridView ID="portföy" runat="server"
CellPadding="3" GridLines="Horizontal"
AutoGenerateColumns="False"
DataKeyNames="PRJ_PROJECT_NAME" BackColor="White" BorderColor="#E7E7FF"
BorderStyle="None" BorderWidth="1px" Font-Bold="False" Font-Names="Verdana"
Font-Overline="False" Font-Size="Smaller" Width="1000px"
>
<RowStyle BackColor="#E7E7FF" ForeColor="#4A3C8C" />
<Columns>
<asp:TemplateField HeaderText="PRJ_PROJECT_NAME" HeaderStyle-HorizontalAlign="Left">
<ItemTemplate>
<asp:Label ID="lblProjeTT" runat="server" Text='<%# Bind("PRJ_PROJECT_NAME") %>'></asp:Label>
</ItemTemplate>
<HeaderStyle HorizontalAlign="Left"></HeaderStyle>
</asp:TemplateField>
<asp:TemplateField HeaderText="Miktar (a/g)" HeaderStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:TextBox runat="server" id="txtField1" Text='<%# Bind("TAMAMLANMA_YUZDESI") %>'/>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox runat="server" id="txtField1" Text='<%# Bind("TAMAMLANMA_YUZDESI") %>'/>
</EditItemTemplate>
<HeaderStyle HorizontalAlign="Center"></HeaderStyle>
</asp:TemplateField>
<asp:TemplateField HeaderText="" ShowHeader="False" HeaderStyle-HorizontalAlign="Center">
<HeaderStyle HorizontalAlign="Center"></HeaderStyle>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#B5C7DE" ForeColor="#4A3C8C" />
<PagerStyle BackColor="#E7E7FF" ForeColor="#4A3C8C" HorizontalAlign="Right" />
<SelectedRowStyle BackColor="#738A9C" Font-Bold="True" ForeColor="#F7F7F7" />
<HeaderStyle BackColor="#4A3C8C" Font-Bold="True" ForeColor="#F7F7F7" />
<EditRowStyle BackColor="#FFFFA8" ForeColor="Black" />
<AlternatingRowStyle BackColor="#F7F7F7" />
</asp:GridView>
<table style="width:100%;">
<tr>
<td class="style2">
</td>
<td>
</td>
<td>
</td>
</tr>
<tr>
<td class="style2">
</td>
<td>
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button"
Width="149px" />
</td>
<td>
</td>
</tr>
<tr>
<td class="style2">
</td>
<td>
</td>
<td>
</td>
</tr>
</table>
</td>
<td>
</td>
</tr>
<tr>
<td>
</td>
<td>
</td>
<td>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
這是我的代碼：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.OleDb;
using System.Data;
using System.Configuration;
public partial class _Default : System.Web.UI.Page
{
csOra cOra;
string oraTns = ConfigurationManager.AppSettings["TNS"];
string oraUserName = ConfigurationManager.AppSettings["OraUserName"];
string oraPassword = ConfigurationManager.AppSettings["OraPassword"];
protected void Page_Load(object sender, EventArgs e)
{
cOra = new csOra(oraTns, oraUserName, oraPassword);
if (cOra.OraCnn.State != ConnectionState.Open)
{
MessageBox.Show("Oracle ile bağlantı kurulamadı...");
return;
}
try
{
if (!IsPostBack)
{
setGrid();
}
}
catch (OleDbException ex)
{
Response.Write(@"Oracle Error:" + ex.Message);
return;
}
catch (Exception ex)
{
Response.Write(@"Error:" + ex.Message);
return;
}
}
void setGrid()
{
string sSQL = @"SELECT PRJ_PROJECT_NAME,TAMAMLANMA_YUZDESI
FROM PPIGANTT.KOKTEYL_TABLE_3
WHERE PRJ_PROJECT_NAME like '%d%'
ORDER BY Request_id";
try
{
OleDbDataAdapter oDa = new OleDbDataAdapter(sSQL, cOra.OraCnn);
DataTable portföy_ = new DataTable("KOKTEYL_TABLE_3");
oDa.Fill(portföy_);
if (portföy_.Rows.Count > 0)
{
portföy.DataSource = portföy_;
portföy.DataBind();
}
else
{
portföy_.Rows.Add(portföy_.NewRow());
portföy.DataSource = portföy_;
portföy.DataBind();
int TotalColumns = portföy.Rows[0].Cells.Count;
portföy.Rows[0].Cells.Clear();
portföy.Rows[0].Cells.Add(new TableCell());
portföy.Rows[0].Cells[0].ColumnSpan = TotalColumns;
portföy.Rows[0].Cells[0].Text = "No Record Found";
}
}
catch (OleDbException ex)
{
Response.Write(@"Oracle Error:" + ex.Message);
return;
}
catch (Exception ex)
{
Response.Write(@"Error:" + ex.Message);
return;
}
}
void UpdatePortföy(string Portföy, int bütçe )
{
string sSQL = @"BEGIN UPDATE PPIGANTT.KOKTEYL_TABLE_3
SET TAMAMLANMA_YUZDESI = " + bütçe + @"WHERE PRJ_PROJECT_NAME ='"
+ Portföy + @"' ; COMMIT; END;";
string sErr = "";
try
{
cOra.ExecNonQuery(sSQL, out sErr);
}
//setGrid();
catch (OleDbException ex)
{
Response.Write(@"Oracle Error:" + ex.Message);
return;
}
catch (Exception ex)
{
Response.Write(@"Error:" + ex.Message);
return;
}
}
protected void Button1_Click(object sender, EventArgs e)
{
/* what can I write here to understand whic column value ?*/
}
}
謝謝。
2 個解決方案
解決方案1
1 已采納 2012-11-10 15:35:11
在Button1_Click內部，您需要遍歷GridView中的所有行，並在每行上執行FindControl以獲取標簽和文本框。 由此可以確定文本框中的PRJ_PROJECT_NAME和值。
這是一個例子：
Default.aspx
<asp:GridView ID="gvData" runat="server" AutoGenerateColumns="false">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:Label ID="lblLabel" runat="server" Text='<%# Bind("Number") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox ID="txtData" runat="server" Text='<%# Bind("Value") %>' />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<asp:Button ID="btnSubmit" runat="server" OnClick="btnSubmit_Click" Text="Submit" />
Default.aspx.cs
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
// Create some fake data and bind it to the gridview
var data = new List<TheData>();
foreach(var num in Enumerable.Range(1, 4))
{
var newData = new TheData();
newData.Number = num.ToString();
newData.Value = num;
data.Add(newData);
}
gvData.DataSource = data;
gvData.DataBind();
}
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
for (var index = 0; index < gvData.Rows.Count; ++index)
{
var row = gvData.Rows[index];
var lblLabel = row.FindControl("lblLabel") as Label;
var txtData = row.FindControl("txtData") as TextBox;
//Here is where the values are grabbed, at this point you can do what you need to.
var number = lblLabel.Text;
var value = txtData.Text;
}
}
解決方案2
0 2012-11-10 15:54:28
我以前使用的一種解決方案是利用按鈕的CommandArgument屬性。 您可以設置CommandArgument ='<％Eval（“ ColumnValueYouWant”）％>'，每個按鈕將獲取其行中列的值。 然后，在click事件中，您可以將對象發送者解析回Button中，並訪問CommandArgument值。
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