this.DataGrid1.Columns[1].HeaderText="标题";
我想实现更改列名...可是提示报错
提示:“/myWeb”应用程序中的服务器错误。
--------------------------------------------------------------------------------索引超出范围。必须为非负值并小于集合大小。参数名: index
说明: 执行当前 Web 请求期间,出现未处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。 异常详细信息: System.ArgumentOutOfRangeException: 索引超出范围。必须为非负值并小于集合大小。参数名: index
我想实现更改列名...可是提示报错
提示:“/myWeb”应用程序中的服务器错误。
--------------------------------------------------------------------------------索引超出范围。必须为非负值并小于集合大小。参数名: index
说明: 执行当前 Web 请求期间,出现未处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。 异常详细信息: System.ArgumentOutOfRangeException: 索引超出范围。必须为非负值并小于集合大小。参数名: index
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
namespace myWeb
{
/// <summary>
/// userlist 的摘要说明。
/// </summary> public class userlist : System.Web.UI.Page
{
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.WebControls.LinkButton First;
protected System.Web.UI.WebControls.LinkButton Previous;
protected System.Web.UI.WebControls.LinkButton Next;
protected System.Web.UI.WebControls.LinkButton Last;
protected System.Web.UI.WebControls.Label Label3;
protected System.Web.UI.WebControls.Label Label4;
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.TextBox textPassword;
protected System.Web.UI.WebControls.TextBox textUser;
protected System.Web.UI.WebControls.DataGrid DataGrid1;
protected System.Web.UI.WebControls.Label Label2;
protected System.Web.UI.WebControls.DropDownList DropDownList1;
protected System.Web.UI.WebControls.Button Button2;
protected System.Web.UI.WebControls.TextBox search;
private string LoginPassword;
private string LoginNumber;
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
//this.Label1.Text=System.Convert.ToString(DataGrid1.PageCount);
string myConnectionString="Data Source=ghost;Initial Catalog=hwinfo;User Id=sa;Password=1q2w3e";
SqlConnection conn=new SqlConnection(myConnectionString);
conn.Open();
SqlDataAdapter da=new SqlDataAdapter("select biaoh,name,department,whentime,scsitype,scsiamount,idetype,ideamount from userlist",conn);
DataSet ds=new DataSet();
da.Fill(ds,"userlist");
this.DataGrid1.DataSource=ds.Tables["userlist"];
this.DataGrid1.DataBind();
//SetBind();
First.Click += new System.EventHandler(this.NavigationButtonClick);
Previous.Click += new System.EventHandler(this.NavigationButtonClick);
Next.Click += new System.EventHandler(this.NavigationButtonClick);
Last.Click += new System.EventHandler(this.NavigationButtonClick);
//DropDownList1.Items.Clear();
SqlCommand cmd=new SqlCommand("select * from search",conn);
SqlDataReader dr0 = cmd.ExecuteReader();
//dr0.Read();
this.DataGrid1.Columns[1].HeaderText="标题";
if(!Page.IsPostBack)
{
try
{
DropDownList1.DataSource=dr0;
DropDownList1.DataTextField="search";
DropDownList1.DataValueField="search";
DropDownList1.DataBind();
}
//catch()
//{
//}
finally
{
dr0.Close();
conn.Close();
}
}
}