功能齐全的DataGrid
来源：互联网 发布：阿里云换公网ip 编辑：程序博客网 时间：2024/05/10 12:24
//目前功能：编辑、排序、单选项、复选项、合并单元格、产生序列号、联动下拉框、删除、超连接、鼠标移动改变颜色、奇偶项颜色区分、排序、分页
1.html代码
<HTML>
<HEAD>
<title>DatagridTest</title>
<meta content="Microsoft Visual Studio .NET 7.1" name="GENERATOR">
<meta content="C#" name="CODE_LANGUAGE">
<meta content="JavaScript" name="vs_defaultClientScript">
<meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">
<script language="javascript">
function fun_option(obj)
{
document.Form1.hiduserid.value=obj.value;
}
function chkAll_true()
{
var chkall= document.all["chkAll"];
var chkother= document.getElementsByTagName("input");
for (var i=0;i<chkother.length;i++)
{
if( chkother[i].type=='checkbox')
{
if(chkother[i].id.indexOf('chkExport')>-1)
{
if(chkall.checked==true)
{
chkother[i].checked=true;
}
else
{
chkother[i].checked=false;
}
}
}
}
}
function Delete()
{
var al = new Array();
var chkother= document.getElementsByTagName("input");
for(var i=0,j=0;i<chkother.length;i++)
{
if( chkother[i].type =='checkbox')
{
if(chkother[i].id.indexOf('chkExport')>-1)
{
if(chkother[i].checked==true)
{
al[j] =chkother[i].value;
j++;
}
}
}
}
if (al == "")
{
alert('You need to select a row in the list before selecting Delete./r/nPlease select a row and try again.');
}
else if (window.confirm("Are you sure to delete all these?"))
{
var deleteID='<%=btndelete.ClientID%>';
window.document.all(deleteID).click();
}
else { return false; }
}
</script>
</HEAD>
<body>
<form id="Form1" method="post" runat="server">
<TABLE id="Table1" height="100%" cellSpacing="1" cellPadding="1" width="100%" border="1">
<tr>
<td><asp:dropdownlist id="DropDownList1" runat="server" AutoPostBack="True"></asp:dropdownlist><asp:dropdownlist id="DropDownList2" runat="server" AutoPostBack="True"></asp:dropdownlist><asp:dropdownlist id="DropDownList3" runat="server"></asp:dropdownlist><asp:textbox id="TextBox1" runat="server"></asp:textbox><asp:checkbox id="CheckBox1" runat="server" Text="可见否"></asp:checkbox><asp:button id="Button1" runat="server" Text="保存"></asp:button><asp:button id="Button2" runat="server" Text="导出Excel"></asp:button></td>
</tr>
<tr height="30">
<td><INPUT id="chkAll" onclick="chkAll_true()" type="checkbox">全选/取消<asp:button id="btndelete" runat="server" Text="删除"></asp:button></td>
</tr>
<TR vAlign="top">
<TD width="100%" colSpan="5"><asp:datagrid id="DataGrid1" runat="server" OnDeleteCommand="Delete" ForeColor="Black" GridLines="None"
CellPadding="2" BackColor="LightGoldenrodYellow" BorderWidth="1px" BorderColor="Tan" AllowSorting="True" AutoGenerateColumns="False"
DataKeyField="UserID" OnUpdateCommand="Update" OnCancelCommand="Cancel" OnEditCommand="Edit" PageSize="5" AllowPaging="True">
<FooterStyle BackColor="Tan"></FooterStyle>
<SelectedItemStyle ForeColor="GhostWhite" BackColor="DarkSlateBlue"></SelectedItemStyle>
<AlternatingItemStyle BackColor="PaleGoldenrod"></AlternatingItemStyle>
<HeaderStyle Font-Bold="True" BackColor="Tan"></HeaderStyle>
<Columns>
<asp:TemplateColumn HeaderText="序号">
<HeaderStyle Width="10px"></HeaderStyle>
<ItemTemplate>
<INPUT id=radio onclick=fun_option(this) type=radio value='<%# DataBinder.Eval(Container.DataItem,"UserID") %>' name=radio>
</ItemTemplate>
<FooterTemplate>
</FooterTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="序号">
<HeaderStyle Width="10px"></HeaderStyle>
<FooterTemplate>
</FooterTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn>
<HeaderStyle Width="10px"></HeaderStyle>
<ItemTemplate>
<asp:CheckBox id="chkExport" Runat="server"></asp:CheckBox>
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn DataField="UserID" SortExpression="UserID" ReadOnly="True" HeaderText="UserID">
<HeaderStyle Width="70px"></HeaderStyle>
</asp:BoundColumn>
<asp:TemplateColumn SortExpression="UserName" HeaderText="姓名">
<HeaderStyle Width="70px"></HeaderStyle>
<ItemTemplate>
<a href='form1.aspx?id=<%# DataBinder.Eval(Container.DataItem,"UserID") %>&name=<%# DataBinder.Eval(Container.DataItem,"UserName") %>' target="_blank">
<%# DataBinder.Eval(Container.DataItem,"UserName") %>
</a>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox id=UserName Text='<%# DataBinder.Eval(Container.DataItem,"UserName") %>' Width="100%" Runat="server">
</asp:TextBox>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn SortExpression="province" HeaderText="省市">
<HeaderStyle Width="70px"></HeaderStyle>
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem,"province") %>
</ItemTemplate>
<EditItemTemplate>
<asp:DropDownList id="province" Width="100%" Runat="server" AutoPostBack="True" OnSelectedIndexChanged="ddlprovince_SelectedIndexChanged"></asp:DropDownList>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn SortExpression="city" HeaderText="县市">
<HeaderStyle Width="70px"></HeaderStyle>
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem,"city") %>
</ItemTemplate>
<EditItemTemplate>
<asp:DropDownList id="city" Runat="server" Width="100%" AutoPostBack="True" OnSelectedIndexChanged="ddlcity_SelectedIndexChanged"></asp:DropDownList>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn SortExpression="area" HeaderText="乡镇">
<HeaderStyle Width="70px"></HeaderStyle>
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem,"area") %>
</ItemTemplate>
<EditItemTemplate>
<asp:DropDownList id="area" Runat="server" Width="100%"></asp:DropDownList>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn SortExpression="Enabled" HeaderText="可见否">
<HeaderStyle Width="70px"></HeaderStyle>
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem,"Enabled") %>
</ItemTemplate>
<EditItemTemplate>
<asp:CheckBox id=chkenabled Runat="server" Checked='<%# DataBinder.Eval(Container.DataItem,"Enabled") %>'>
</asp:CheckBox>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:EditCommandColumn ButtonType="PushButton" UpdateText="更新" HeaderText="编辑" CancelText="取消" EditText="编辑"></asp:EditCommandColumn>
<asp:ButtonColumn Text="删除" ButtonType="PushButton" HeaderText="删除" CommandName="Delete"></asp:ButtonColumn>
</Columns>
<PagerStyle NextPageText="下一页" PrevPageText="上一页" HorizontalAlign="Right" ForeColor="DarkSlateBlue"
BackColor="PaleGoldenrod" Mode="NumericPages"></PagerStyle>
</asp:datagrid></TD>
</TR>
<tr height="30">
<td></td>
</tr>
</TABLE>
<INPUT id="hiduserid" type="hidden" runat="server">
</form>
</body>
</HTML>
2.cs代码
using System.Data.SqlClient;
using System.Text;
public class DatagridTest : System.Web.UI.Page
{
protected System.Web.UI.WebControls.DataGrid DataGrid1;
protected System.Web.UI.HtmlControls.HtmlInputHidden hiduserid;
protected System.Web.UI.WebControls.Button btndelete;
protected System.Web.UI.WebControls.DropDownList DropDownList1;
protected System.Web.UI.WebControls.DropDownList DropDownList2;
protected System.Web.UI.WebControls.DropDownList DropDownList3;
protected System.Web.UI.WebControls.CheckBox CheckBox1;
protected System.Web.UI.WebControls.TextBox TextBox1;
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.Button Button2;
private string constring="";
private void Page_Load(object sender, System.EventArgs e)
{
if(!Page.IsPostBack)
{
ListProvince();
ListCity();
ListArea();
btndelete.Attributes.Add("onclick","return Delete();");
SortExpression="";
sort="desc";
DataBind();
}
}
DataBind#region DataBind
private void DataBind()
{
string sql="select a.UserID,a.UserName,b.province,c.city,d.area,a.Enabled,b.provinceID,c.cityID,d.areaID from testgrid a ";
sql+=" left join province b on a.provinceID=b.provinceID";
sql+=" left join city c on a.cityID=c.cityID";
sql+=" left join area d on a.areaID=d.areaID";
DataSet ds=GetDataSet(sql);
dt=ds.Tables[0];
dt.DefaultView.Sort="UserID asc";
dt.AcceptChanges();
this.DataGrid1.DataSource=dt;
this.DataGrid1.DataBind();
DataTable dt1=new DataTable();
dt1=(DataTable)(DataGrid1.DataSource);
}
#endregion
Web Form Designer generated code#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
this.DataGrid1.ItemDataBound+=new DataGridItemEventHandler(DataGrid1_ItemDataBound);
this.DataGrid1.SortCommand+=new DataGridSortCommandEventHandler(DataGrid1_SortCommand);
this.DataGrid1.ItemCreated+=new DataGridItemEventHandler(DataGrid1_ItemCreated);
this.DataGrid1.PageIndexChanged+=new DataGridPageChangedEventHandler(DataGrid1_PageIndexChanged);
this.btndelete.Click += new System.EventHandler(this.btndelete_Click);
this.DropDownList1.SelectedIndexChanged += new System.EventHandler(this.DropDownList1_SelectedIndexChanged);
this.DropDownList2.SelectedIndexChanged += new System.EventHandler(this.DropDownList2_SelectedIndexChanged);
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.Button2.Click += new System.EventHandler(this.Button2_Click);
}
/**//// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.DropDownList1.SelectedIndexChanged += new System.EventHandler(this.DropDownList1_SelectedIndexChanged);
this.DropDownList2.SelectedIndexChanged += new System.EventHandler(this.DropDownList2_SelectedIndexChanged);
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.Button2.Click += new System.EventHandler(this.Button2_Click);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
GetDataSet#region GetDataSet
private DataSet GetDataSet(string sql)
{
constring=System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"];
SqlDataAdapter sda =new SqlDataAdapter(sql,constring);
DataSet ds=new DataSet();
sda.Fill(ds);
return ds;
}
#endregion
DataGrid1_ItemDataBound#region DataGrid1_ItemDataBound
private void DataGrid1_ItemDataBound(object sender, DataGridItemEventArgs e)
{
e.Item.Cells[1].Text=Convert.ToString(e.Item.ItemIndex+1);//产生序号
if(e.Item.ItemType!=ListItemType.Header)
{
if(e.Item.ItemIndex%2==0)
{
e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor='PaleGoldenrod'");
}
else
{
e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor='LightGoldenrodYellow'");
}
e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor='#C1D2EE'");
}
switch (e.Item.ItemType)
{
case ListItemType.Item:
case ListItemType.AlternatingItem:
e.Item.Attributes.Add("ondblclick","alert('"+e.Item.ItemIndex+"');");
break;
case ListItemType.Header:
e.Item.Cells[0].ColumnSpan=2;//合并单元格
e.Item.Cells[1].Visible=false;
break;
case ListItemType.EditItem:
for (int i=4; i < DataGrid1.Columns.Count-2; i++)//只调整被编辑的列
{
if(e.Item.ItemType==ListItemType.EditItem)
{
e.Item.Cells[i].Attributes.Add("Width", "70px");
}
}
string sqlprovince="select * from province";
DataSet dsprovince=GetDataSet(sqlprovince);
//一级
if(e.Item.ItemType==ListItemType.EditItem)
{
DropDownList ddlprovince=(DropDownList)e.Item.FindControl("province");
ddlprovince.DataSource=dsprovince;
ddlprovince.DataTextField="province";
ddlprovince.DataValueField="provinceID";
ddlprovince.DataBind();
ddlprovince.Items.FindByValue(Convert.ToString(DataBinder.Eval(e.Item.DataItem,"provinceID"))).Selected=true;
//二级
if(e.Item.ItemType==ListItemType.EditItem)
{
if(ddlprovince.SelectedIndex!=-1)
{
string sqlcity="select * from city where father='"+ddlprovince.SelectedValue+"'";
DropDownList ddlcity=(DropDownList)e.Item.FindControl("city");
DataSet dscity=GetDataSet(sqlcity);
ddlcity.DataSource=dscity;
ddlcity.DataTextField="city";
ddlcity.DataValueField="cityID";
ddlcity.DataBind();
ddlcity.Items.FindByValue(Convert.ToString(DataBinder.Eval(e.Item.DataItem,"cityID"))).Selected=true;
//三级
if(e.Item.ItemType==ListItemType.EditItem)
{
if(ddlcity.SelectedIndex!=-1)
{
string sqlarea="select * from area where father='"+ddlcity.SelectedValue+"'";
DropDownList ddlarea=(DropDownList)e.Item.FindControl("area");
DataSet dsarea=GetDataSet(sqlarea);
ddlarea.DataSource=dsarea;
ddlarea.DataTextField="area";
ddlarea.DataValueField="areaID";
ddlarea.DataBind();
ddlarea.Items.FindByValue(Convert.ToString(DataBinder.Eval(e.Item.DataItem,"areaID"))).Selected=true;
}
}
}
}
}
break;
default:
break;
}
}
#endregion
DataGrid1_SortCommand#region DataGrid1_SortCommand
private void DataGrid1_SortCommand(object source, DataGridSortCommandEventArgs e)
{
if(SortExpression==e.SortExpression.ToString())
{
if(sort=="asc")
{
sort="desc";
}
else
{
sort="asc";
}
}
else
{
if(sort=="asc")
{
sort="desc";
}
else
{
sort="asc";
}
}
SortExpression=e.SortExpression;
dt.DefaultView.Sort=e.SortExpression+" "+sort;
DataGrid1.DataSource=dt;
DataGrid1.DataBind();
}
#endregion
DataGrid1_ItemCreated#region DataGrid1_ItemCreated
private void DataGrid1_ItemCreated(object sender, DataGridItemEventArgs e)
{
for (int i=3; i < DataGrid1.Columns.Count-2; i++)//-2的意思是两个button列不用排序
{
if (i == 0) continue;
if(e.Item.ItemIndex==-1)
{
if (DataGrid1.Columns[i].SortExpression == SortExpression)
{
try
{
TableCell tableCell = e.Item.Cells[i];
Label label = new Label();
label.Font.Name = "webdings";
if(sort=="asc")
{
label.Text="6";
}
else
{
label.Text="5";
}
label.Width =20;
tableCell.Controls.Add(label);
}
catch{}
}
}
}
foreach(DataGridItem di in this.DataGrid1.Items)
{
if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
{
((Button)di.Cells[10].Controls[0]).Attributes.Add("onclick","return confirm('确认删除此项吗?');");
}
}
}
#endregion
property#region property
private DataTable dt
{
get
{
if(ViewState["dt"]!=null)
{
return (DataTable)ViewState["dt"];
}
else
{
return null;
}
}
set
{
ViewState["dt"]=value;
}
}
private string SortExpression
{
get
{
if(ViewState["SortExpression"]!=null && ViewState["SortExpression"].ToString()!=string.Empty)
{
return ViewState["SortExpression"].ToString();
}
else
{
return "";
}
}
set
{
ViewState["SortExpression"]=value;
}
}
private string sort
{
get
{
if(ViewState["sort"]!=null && ViewState["sort"].ToString()!=string.Empty)
{
return ViewState["sort"].ToString();
}
else
{
return "";
}
}
set
{
ViewState["sort"]=value;
}
}
#endregion
Edit#region Edit
protected void Edit(object sender,DataGridCommandEventArgs e)
{
this.DataGrid1.EditItemIndex=e.Item.ItemIndex;
DataBind();
}
#endregion
Cancel#region Cancel
protected void Cancel(object sender,DataGridCommandEventArgs e)
{
this.DataGrid1.EditItemIndex=-1;
DataBind();
}
#endregion
Update#region Update
protected void Update(object sender,DataGridCommandEventArgs e)
{
if(e.Item.ItemType==ListItemType.EditItem)
{
SqlConnection conn=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"]);
SqlCommand comm=new SqlCommand("update testgrid set UserName=@UserName,provinceID=@province,cityID=@city,areaID=@area,Enabled=@Enabled where UserID=@UserID",conn);
SqlParameter parm1=new SqlParameter("@UserName",SqlDbType.NVarChar,50);
parm1.Value=((TextBox)e.Item.FindControl("UserName")).Text;
SqlParameter parm2=new SqlParameter("@province",SqlDbType.NVarChar,50);
parm2.Value=((DropDownList)e.Item.FindControl("province")).SelectedValue;
SqlParameter parm3=new SqlParameter("@city",SqlDbType.NVarChar,50);
parm3.Value=((DropDownList)e.Item.FindControl("city")).SelectedValue;
SqlParameter parm4=new SqlParameter("@area",SqlDbType.NVarChar,50);
parm4.Value=((DropDownList)e.Item.FindControl("area")).SelectedValue;
SqlParameter parm5=new SqlParameter("@Enabled",SqlDbType.Bit);
parm5.Value=((CheckBox)e.Item.FindControl("chkenabled")).Checked;
SqlParameter parm6=new SqlParameter("@UserID",SqlDbType.Int);
parm6.Value=this.DataGrid1.DataKeys[e.Item.ItemIndex];
comm.Parameters.Add(parm1);
comm.Parameters.Add(parm2);
comm.Parameters.Add(parm3);
comm.Parameters.Add(parm4);
comm.Parameters.Add(parm5);
comm.Parameters.Add(parm6);
conn.Open();
comm.ExecuteNonQuery();
conn.Close();
this.DataGrid1.EditItemIndex=-1;
DataBind();
}
}
#endregion
Delete event#region Delete event
protected void Delete(object sender,DataGridCommandEventArgs e)
{
delete(this.DataGrid1.DataKeys[e.Item.ItemIndex].ToString());
}
#endregion
ddlprovince_SelectedIndexChanged#region ddlprovince_SelectedIndexChanged
public void ddlprovince_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList ddlprovince = sender as DropDownList;
if(ddlprovince.SelectedIndex!=-1)
{
DropDownList ddlcity = ((Control)(((Control)sender)).Parent).FindControl("city") as DropDownList;
string sqlcity="select * from city where father='"+ddlprovince.SelectedValue+"'";
DataSet dscity=GetDataSet(sqlcity);
ddlcity.DataSource=dscity;
ddlcity.DataTextField="city";
ddlcity.DataValueField="cityID";
ddlcity.DataBind();
}
}
#endregion
ddlcity_SelectedIndexChanged#region ddlcity_SelectedIndexChanged
public void ddlcity_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList ddlcity = sender as DropDownList;
if(ddlcity.SelectedIndex!=-1)
{
DropDownList ddlarea = ((Control)(((Control)sender)).Parent).FindControl("city") as DropDownList;
string sqlarea="select * from area where father='"+ddlcity.SelectedValue+"'";
DataSet dsarea=GetDataSet(sqlarea);
ddlarea.DataSource=dsarea;
ddlarea.DataTextField="area";
ddlarea.DataValueField="areaID";
ddlarea.DataBind();
}
}
#endregion
btndelete_Click#region btndelete_Click
private void btndelete_Click(object sender, System.EventArgs e)
{
StringBuilder s=new StringBuilder();
foreach(DataGridItem di in DataGrid1.Items)
{
if(((CheckBox)(di.FindControl("chkExport"))).Checked==true)
{
s.Append(",").Append(DataGrid1.DataKeys[di.ItemIndex].ToString());
}
}
if(s.ToString().StartsWith(",")==true)
{
delete(s.ToString().Substring(1,s.ToString().Length-1));
}
}
#endregion
delete#region delete
private void delete(string id)
{
SqlConnection conn=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"]);
string sql=@"declare @sql nvarchar(400)
set @sql = 'delete from testgrid where UserID in('+@UserID+')'
exec( @sql)";
SqlCommand comm=new SqlCommand(sql,conn);
SqlParameter parm1=new SqlParameter("@UserID",SqlDbType.VarChar,200);
parm1.Value=id;
comm.Parameters.Add(parm1);
conn.Open();
comm.ExecuteNonQuery();
conn.Close();
DataBind();
}
#endregion
ListProvince#region ListProvince
private void ListProvince()
{
string sql="select * from province";
DataSet ds=GetDataSet(sql);
DropDownList1.DataSource=ds;
DropDownList1.DataTextField="province";
DropDownList1.DataValueField="provinceID";
DropDownList1.DataBind();
}
#endregion
ListCity#region ListCity
private void ListCity()
{
if(DropDownList1.SelectedIndex!=-1)
{
string sql="select * from city where father='"+DropDownList1.SelectedValue+"'";
DataSet ds=GetDataSet(sql);
DropDownList2.DataSource=ds;
DropDownList2.DataTextField="city";
DropDownList2.DataValueField="cityID";
DropDownList2.DataBind();
}
}
#endregion
ListArea#region ListArea
private void ListArea()
{
if(DropDownList2.SelectedIndex!=-1)
{
string sql="select * from area where father='"+DropDownList2.SelectedValue+"'";
DataSet ds=GetDataSet(sql);
DropDownList3.DataSource=ds;
DropDownList3.DataTextField="area";
DropDownList3.DataValueField="areaID";
DropDownList3.DataBind();
}
}
#endregion
save#region save
private void Button1_Click(object sender, System.EventArgs e)
{
SqlConnection conn=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"]);
SqlCommand comm=new SqlCommand("insert into testgrid (UserName,provinceID,cityID,areaID,Enabled) values(@UserName,@provinceID,@cityID,@areaID,@Enabled)",conn);
SqlParameter parm1=new SqlParameter("@UserName",SqlDbType.NVarChar,50);
parm1.Value=this.TextBox1.Text;
SqlParameter parm2=new SqlParameter("@provinceID",SqlDbType.NVarChar,50);
parm2.Value=this.DropDownList1.SelectedValue;
SqlParameter parm3=new SqlParameter("@cityID",SqlDbType.NVarChar,50);
parm3.Value=this.DropDownList2.SelectedValue;
SqlParameter parm4=new SqlParameter("@areaID",SqlDbType.NVarChar,50);
parm4.Value=this.DropDownList3.SelectedValue;
SqlParameter parm5=new SqlParameter("@Enabled",SqlDbType.Bit);
parm5.Value=this.CheckBox1.Checked;
comm.Parameters.Add(parm1);
comm.Parameters.Add(parm2);
comm.Parameters.Add(parm3);
comm.Parameters.Add(parm4);
comm.Parameters.Add(parm5);
conn.Open();
comm.ExecuteNonQuery();
conn.Close();
DataBind();
}
#endregion
private void DropDownList1_SelectedIndexChanged(object sender, System.EventArgs e)
{
ListCity();
}
private void DropDownList2_SelectedIndexChanged(object sender, System.EventArgs e)
{
ListArea();
}
private void Button2_Click(object sender, System.EventArgs e)
{
ToExcel(this.DataGrid1,"meng");
}
ToExcel#region ToExcel
public static void ToExcel(System.Web.UI.Control ctl,string FileName)
{
HttpContext.Current.Response.Charset ="UTF-8";
HttpContext.Current.Response.ContentEncoding =System.Text.Encoding.Default;
HttpContext.Current.Response.ContentType ="application/ms-excel";
HttpContext.Current.Response.AppendHeader("Content-Disposition","attachment;filename="+""+FileName+".xls");
ctl.Page.EnableViewState =false;
System.IO.StringWriter tw = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(tw);
ctl.RenderControl(hw);
HttpContext.Current.Response.Write(tw.ToString());
HttpContext.Current.Response.End();
}
#endregion
private void DataGrid1_PageIndexChanged(object source, DataGridPageChangedEventArgs e)
{
this.DataGrid1.CurrentPageIndex=e.NewPageIndex;
DataBind();
}
}
3. 数据库教本(或下载真实数据/Files/singlepine/area.rar)
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[TestGrid]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[TestGrid]
GO
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[province]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[province]
GO
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[city]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[city]
GO
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[area]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[area]
GO
CREATE TABLE [dbo].[TestGrid] (
[UserID] [int] IDENTITY (1, 1) NOT NULL ,
[UserName] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[provinceID] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[cityID] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[areaID] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[Enabled] [bit] NULL
) ON [PRIMARY]
GO
CREATE TABLE [dbo].[province] (
[id] [int] NOT NULL ,
[provinceID] [nvarchar] (6) COLLATE Chinese_PRC_CI_AS NULL ,
[province] [nvarchar] (40) COLLATE Chinese_PRC_CI_AS NULL
) ON [PRIMARY]
GO
CREATE TABLE [dbo].[city] (
[id] [int] NOT NULL ,
[cityID] [nvarchar] (6) COLLATE Chinese_PRC_CI_AS NULL ,
[city] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[father] [nvarchar] (6) COLLATE Chinese_PRC_CI_AS NULL
) ON [PRIMARY]
GO
CREATE TABLE [dbo].[area] (
[id] [int] NOT NULL ,
[areaID] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[area] [nvarchar] (60) COLLATE Chinese_PRC_CI_AS NULL ,
[father] [nvarchar] (6) COLLATE Chinese_PRC_CI_AS NULL
) ON [PRIMARY]
GO
4.源代码下载/Files/singlepine/datagrid.rar
- 功能齐全的DataGrid
- 功能齐全的DataGrid
- 功能齐全的DataGrid
- 功能齐全的DataGrid
- 功能齐全的DataGrid
- 功能齐全的DataGrid
- 功能齐全的DataGrid
- 功能齐全的DataGrid
- 功能齐全的DataGrid
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