谁帮我看一下，小问题？

sunyoujun1999 2004-10-22 01:28:06

我用datagrid做了一个查询页面，当我输入单引号时候就出现错误，为什么？是我代码有问题？还有我在查询的时候想设置一个记录号，如何做能把记录数存住？

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lijianlee 2004-10-22

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此项目的数据输入需要替换单引号(和采用的操作数据库的方法用关系)，如果不禁止，就会用语句其他的'产生错误。
1,replay 2,校验禁止输入。

******int index=0;
while(oledr.Read())
{
************************index++;一条条记数
dr = dt.NewRow();
dr[0] = "<a href='edit_jobtask.aspx?ID="+oledr["ID"].ToString()+"'>"+oledr["ID"].ToString()+"</a>";
dr[1] = oledr["StarDept"].ToString();
dr[2] = oledr["HelpDept"].ToString();
dr[3] = oledr["Job"].ToString();
dr[4] = oledr["Leader"].ToString();
if(oledr["RealEndTime"].ToString() == "" || oledr["RealEndTime"].ToString().Substring(0,oledr["RealEndTime"].ToString().IndexOf(" ")) == "1900-1-1")
{
dr[5]="";
}
else
{
dr[5] = oledr["RealEndTime"].ToString().Substring(0,oledr["RealEndTime"].ToString().IndexOf(" "));
}

dt.Rows.Add(dr);
}
conn.closeRecordset();
conn.commitTrans();
conn.closeConn ();
DataView dv = new DataView(dt);
DataGridFile.DataSource = dv;
DataGridFile.DataBind();
//newsCount.Text=DataGridFile.Items.Count.ToString();(注释:这是以前只记录一页数的错误方法)
************************newsCount.Text=index.ToString();

Eddie005 2004-10-22

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string SQL = "select * from table1 where field1='" + TextBox1.Text.Replace ("'","''")
+ "'";

wangdequan1024 2004-10-22

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不知道我有没有误解你的意思，你是不是想在datagrid最前面有自动编号的记录号？

wangdequan1024 2004-10-22

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下面的代码实现在DataGrid中添加自动编号的功能，主要是在数据绑定时利用Item属性。

DataGridWithLine.aspx

<%@ Page Language="vb" AutoEventWireup="false" Codebehind="DataGridWithLine.aspx.vb"
Inherits="aspxWeb.DataGridWithLine"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title>DataGridWithLine</title>
<meta name="GENERATOR" content="Microsoft Visual Studio .NET 7.0">
<meta name="CODE_LANGUAGE" content="Visual Basic 7.0">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<asp:DataGrid id="DataGrid1" runat="server" AutoGenerateColumns="False">
<HeaderStyle Font-Bold="True" Wrap="False" HorizontalAlign="Center"></HeaderStyle>
<Columns>
<asp:TemplateColumn></asp:TemplateColumn>
<asp:BoundColumn DataField="Title"></asp:BoundColumn>
<asp:BoundColumn DataField="CreateDate" DataFormatString="{0:yyyy-M-d h:m:s}"></asp:BoundColumn>
</Columns>
</asp:DataGrid>
</form>
</body>
</HTML>

DataGridWithLine.aspx.vb

Imports System
Imports System.Data
Imports System.Data.OleDb
Public Class DataGridWithLine
Inherits System.Web.UI.Page
Protected WithEvents DataGrid1 As System.Web.UI.WebControls.DataGrid

#Region " Web 窗体设计器生成的代码 "

'该调用是 Web 窗体设计器所必需的。
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

End Sub

Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
'CODEGEN: 此方法调用是 Web 窗体设计器所必需的
'不要使用代码编辑器修改它。
InitializeComponent()
End Sub

#End Region

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
DataGrid1.Columns(0).HeaderText = "序号"
DataGrid1.Columns(1).HeaderText = "文章标题"
DataGrid1.Columns(2).HeaderText = "创建日期"
Dim cnString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("Test.mdb")
Dim strSQL As String = "SELECT TOP 21 Title,CreateDate FROM Document ORDER By CreateDate DESC"
Dim cn As New OleDbConnection(cnString)
cn.Open()
Dim cmd As New OleDbCommand(strSQL, cn)
Dim db As OleDbDataReader
db = cmd.ExecuteReader(CommandBehavior.CloseConnection)
DataGrid1.DataSource = db
DataGrid1.DataBind()
cn.Close()
cn = Nothing
cmd = Nothing
db.Close()
db = Nothing
End Sub

Private Sub DataGrid1_ItemDataBound(ByVal sender As Object, _
ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs) Handles DataGrid1.ItemDataBound
If e.Item.ItemIndex <> -1 Then
e.Item.Cells(0).Text = e.Item.ItemIndex + 1
End If
End Sub
End Class

shenanigan 2004-10-22