GridView無代碼分頁排序
GridView選中,編輯,取消,删除
GridView正反雙向排序
GridView和下拉菜單DropDownList結合
GridView和CheckBox結合
滑鼠移到GridView某一行時改變該行的背景色方法一
滑鼠移到GridView某一行時改變該行的背景色方法二
GridView實作删除時彈出确認對話框
GridView實作自動編号
GridView實作自定義時間貨币等字元串格式
GridView實作用“...”代替超長字元串
GridView一般換行與強制換行
GridView顯示隐藏某一列
GridView彈出新頁面/彈出新視窗
GridView固定表頭(不用javascript隻用CSS,2行代碼,很好用)
GridView合并表頭多重表頭無錯完美版(以合并3列3行舉例)
GridView突出顯示某一單元格(例如金額低于多少,分數不及格等)
GridView加入自動求和求平均值小計
GridView資料導入Excel/Excel資料讀入GridView
1.GridView無代碼分頁排序:
效果圖:

1.AllowSorting設為True,aspx代碼中是AllowSorting="True";
2.預設1頁10條,如果要修改每頁條數,修改PageSize即可,在aspx代碼中是PageSize="12"。
3.預設的是單向排序的,右擊GridView彈出“屬性”,選擇AllowSorting為True即可。
2.GridView選中,編輯,取消,删除:
背景代碼:
你可以使用sqlhelper,本文沒用。代碼如下:
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon = "Data Source=(local);Database=資料庫名;Uid=帳号;Pwd=密碼";
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
bind();
}
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
GridView1.EditIndex = e.NewEditIndex;
bind();
//删除
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
string sqlstr = "delete from 表 where id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcon = new SqlConnection(strCon);
sqlcom = new SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
//更新
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
string sqlstr = "update 表 set 字段1='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',字段2='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "',字段3='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where id='"
+ GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom=new SqlCommand(sqlstr,sqlcon);
GridView1.EditIndex = -1;
//取消
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
//綁定
public void bind()
string sqlstr = "select * from 表";
SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
myda.Fill(myds, "表");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new string[] { "id" };//主鍵
GridView1.DataBind();
}
前台主要代碼:
... ...
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"
ForeColor="#333333" GridLines="None" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit">
<FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
<Columns>
<asp:BoundField DataField="身份證号碼" HeaderText="使用者ID" ReadOnly="True" />
<asp:BoundField DataField="姓名" HeaderText="使用者姓名" />
<asp:BoundField DataField="員工性别" HeaderText="性别" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:CommandField HeaderText="選擇" ShowSelectButton="True" />
<asp:CommandField HeaderText="編輯" ShowEditButton="True" />
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
</Columns>
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
</asp:GridView>
3.GridView正反雙向排序:
效果圖:點姓名各2次的排序,點其他也一樣可以。
using System.Collections;
public partial class Default3 : System.Web.UI.Page
string strCon = "Data Source=(local);Database=北風貿易;Uid=sa;Pwd=";
ViewState["SortOrder"] = "身份證号碼";
ViewState["OrderDire"] = "ASC";
protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
string sPage = e.SortExpression;
if (ViewState["SortOrder"].ToString() == sPage)
if (ViewState["OrderDire"].ToString() == "Desc")
ViewState["OrderDire"] = "ASC";
else
ViewState["OrderDire"] = "Desc";
else
ViewState["SortOrder"] = e.SortExpression;
string sqlstr = "select top 5 * from 飛狐工作室";
myda.Fill(myds, "飛狐工作室");
DataView view = myds.Tables["飛狐工作室"].DefaultView;
string sort = (string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDire"];
view.Sort = sort;
GridView1.DataSource = view;
<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"
CellPadding="3" Font-Size="9pt" OnSorting="GridView1_Sorting" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">
<FooterStyle BackColor="White" ForeColor="#000066" />
<asp:BoundField DataField="身份證号碼" HeaderText="使用者ID" SortExpression="身份證号碼" />
<asp:BoundField DataField="姓名" HeaderText="使用者姓名" SortExpression="姓名"/>
<asp:BoundField DataField="員工性别" HeaderText="性别" SortExpression="員工性别"/>
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>
4.GridView和下拉菜單DropDownList結合:
public partial class Default4 : System.Web.UI.Page
string strCon = "Data Source=(local);Database=北風貿易;Uid=sa;Pwd=sa";
DropDownList ddl;
string sqlstr = "select top 5 * from 飛狐工作室";
sqlcon = new SqlConnection(strCon);
SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飛狐工作室");
GridView1.DataSource = myds;
GridView1.DataBind();
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
{
DataRowView mydrv = myds.Tables["飛狐工作室"].DefaultView[i];
if (Convert.ToString(mydrv["員工性别"]).Trim() == "True")
{
ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");
ddl.SelectedIndex = 0;
}
if (Convert.ToString(mydrv["員工性别"]).Trim() == "False")
ddl.SelectedIndex = 1;
}
sqlcon.Close();
public SqlDataReader ddlbind()
string sqlstr = "select distinct 員工性别 from 飛狐工作室";
SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon);
return sqlcom.ExecuteReader();
CellPadding="3" Font-Size="9pt" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">
<asp:TemplateField HeaderText="員工性别">
<ItemTemplate>
<asp:DropDownList ID="DropDownList1" runat="server" DataSource='<%# ddlbind()%>' DataValueField="員工性别" DataTextField="員工性别">
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
5.GridView和CheckBox結合:
public partial class Default5 : System.Web.UI.Page
protected void CheckBox2_CheckedChanged(object sender, EventArgs e)
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
if (CheckBox2.Checked == true)
cbox.Checked = true;
cbox.Checked = false;
protected void Button2_Click(object sender, EventArgs e)
SqlCommand sqlcom;
if (cbox.Checked == true)
string sqlstr = "delete from 飛狐工作室 where 身份證号碼='" + GridView1.DataKeys[i].Value + "'";
sqlcom = new SqlCommand(sqlstr, sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
protected void Button1_Click(object sender, EventArgs e)
CheckBox2.Checked = false;
cbox.Checked = false;
myda.Fill(myds, "tb_Member");
GridView1.DataKeyNames = new string[] { "身份證号碼" };
<asp:TemplateField>
<asp:CheckBox ID="CheckBox1" runat="server" />
<asp:CheckBox ID="CheckBox2" runat="server" AutoPostBack="True" Font-Size="9pt" OnCheckedChanged="CheckBox2_CheckedChanged"
Text="全選" />
<asp:Button ID="Button1" runat="server" Font-Size="9pt" Text="取消" OnClick="Button1_Click" />
<asp:Button ID="Button2" runat="server" Font-Size="9pt" Text="删除" OnClick="Button2_Click" />
6.滑鼠移到GridView某一行時改變該行的背景色方法一:
做法:
輕按兩下GridView的OnRowDataBound事件;
在背景的GridView1_RowDataBound()方法添加代碼,最後代碼如下所示:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
int i;
//執行循環,保證每條資料都可以更新
for (i = 0; i < GridView1.Rows.Count; i++)
//首先判斷是否是資料行
if (e.Row.RowType == DataControlRowType.DataRow)
//當滑鼠停留時更改背景色
e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");
//當滑鼠移開時還原背景色
e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");
前台代碼:
<head runat="server">
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份證号碼"
DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">
<Columns>
<asp:BoundField DataField="身份證号碼" HeaderText="身份證号碼" ReadOnly="True" SortExpression="身份證号碼" />
<asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址" />
<asp:BoundField DataField="郵政編碼" HeaderText="郵政編碼" SortExpression="郵政編碼" />
</Columns>
<FooterStyle BackColor="White" ForeColor="#000066" />
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北風貿易ConnectionString1 %>"
SelectCommand="SELECT top 5 [身份證号碼], [姓名], [員工性别], [家庭住址], [郵政編碼] FROM [飛狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>
</div>
</form>
</body>
</html>
7.滑鼠移到GridView某一行時改變該行的背景色方法二:
做法:和上面的一樣就是代碼不同
//int i;
////執行循環,保證每條資料都可以更新
//for (i = 0; i < GridView1.Rows.Count; i++)
//{
// //首先判斷是否是資料行
// if (e.Row.RowType == DataControlRowType.DataRow)
// {
// //當滑鼠停留時更改背景色
// e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");
// //當滑鼠移開時還原背景色
// e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");
// }
//}
//如果是綁定資料行
if (e.Row.RowType == DataControlRowType.DataRow)
//滑鼠經過時,行背景色變
e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");
//滑鼠移出時,行背景色變
e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");
8.GridView實作删除時彈出确認對話框:
實作方法:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)
((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确認要删除:\"" + e.Row.Cells[1].Text + "\"嗎?')");
9.GridView實作自動編号:
////滑鼠經過時,行背景色變
//e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");
////滑鼠移出時,行背景色變
//e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");
////當有編輯列時,避免出錯,要加的RowState判斷
//if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)
//{
// ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确認要删除:\"" + e.Row.Cells[1].Text + "\"嗎?')");
//}
if (e.Row.RowIndex != -1)
int id = e.Row.RowIndex + 1;
e.Row.Cells[0].Text = id.ToString();
注意這時最好把前台的第一列的表頭該為“編号”,因為以前的第一列被“吃掉”了。
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">
<asp:BoundField DataField="身份證号碼" HeaderText="編号" ReadOnly="True" />
10.GridView實作自定義時間貨币等字元串格式:
圖1-未格式化前
圖2-格式化後
解決方法:
在asp.net 2.0中,如果要在綁定列中顯示比如日期格式等,如果用下面的方法是顯示不了的
<asp :BoundField DataField="CreationDate"
DataFormatString="{0:M-dd-yyyy}"
HeaderText="CreationDate" />
主要是由于htmlencode屬性預設設定為true,已防止XSS攻擊,安全起見而用的,是以,可以有以下兩種方法解決
1、
<asp :GridView ID="GridView1" runat="server">
<columns>
HtmlEncode="false"
</columns>
</asp>
将htmlencode設定為false即可
另外的解決方法為,使用模版列
<asp :GridView ID="GridView3" runat="server" >
<asp :TemplateField HeaderText="CreationDate" >
<edititemtemplate>
<asp :Label ID="Label1" runat="server"
Text='<%# Eval("CreationDate", "{0:M-dd-yyyy}") %>'>
</edititemtemplate>
<itemtemplate>
Text=’<%# Bind("CreationDate", "{0:M-dd-yyyy}") %>'>
</itemtemplate>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份證号碼"
<asp:BoundField DataField="出生日期" HeaderText="出生日期" SortExpression="出生日期" />
<asp:BoundField DataField="起薪" HeaderText="起薪" SortExpression="起薪" />
SelectCommand="SELECT top 5 [出生日期], [起薪], [身份證号碼], [姓名], [家庭住址], [郵政編碼] FROM [飛狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>
附錄-常用格式化公式:
{0:C} 貨币;
{0:D4}由0填充的4個字元寬的字段中顯示整數;
{0:000.0}四舍五入小數點保留第幾位有效數字;
{0:N2}小數點保留2位有效數字;{0:N2}% 小數點保留2位有效數字加百分号;
{0:D}長日期;{0:d}短日期;{0:yy-MM-dd} 例如07-3-25;;{0:yyyy-MM-dd} 例如2007-3-25
11.GridView實作用“...”代替超長字元串:
解決方法:資料綁定後過濾每一行即可
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
DataRowView mydrv;
string gIntro;
if (GridView1.PageIndex == 0)
mydrv = myds.Tables["飛狐工作室"].DefaultView[i];//表名
gIntro = Convert.ToString(mydrv["家庭住址"]);//所要處理的字段
GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);
mydrv = myds.Tables["飛狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];
gIntro = Convert.ToString(mydrv["家庭住址"]);
}
調用的方法:
public string SubStr(string sString, int nLeng)
if (sString.Length <= nLeng)
return sString;
string sNewStr = sString.Substring(0, nLeng);
sNewStr = sNewStr + "...";
return sNewStr;
背景全部代碼:
string sqlstr = "delete from 飛狐工作室 where 身份證号碼='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
string sqlstr = "update 飛狐工作室 set 姓名='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份證号碼='"
mydrv = myds.Tables["飛狐工作室"].DefaultView[i];
//如果是綁定資料行
11.GridView一般換行與強制換行:
首先設定<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" ItemStyle-Width="100" />
gridview裡有一列綁定的資料很長,顯示的時候在一行裡面顯示,頁面拉得很寬。
原因是連續英文段為一個整體導緻的,在RowDataBound中添加上了一句e.Row.Cells[2].Style.Add("word-break", "break-all")就可以。
如果要給所有的列增加此屬性:
protected void Page_Load(object sender, EventArgs e)
//正常換行
GridView1.Attributes.Add("style", "word-break:keep-all;word-wrap:normal");
//下面這行是自動換行
GridView1.Attributes.Add("style", "word-break:break-all;word-wrap:break-word");
bind();//調用資料綁定即可
總之:善用CSS的word-break:break-all;word-wrap:break-word屬性即可,這個屬性是通用的對于頑固的南換行問題都可以解決,不局限于GridView。
12.GridView顯示隐藏某一列:
本方案為月兒獨創,不同于網上其他方式,我覺得用一個CheckBox更人性化,這樣可以隐藏不必要的列,讓使用者自己選擇需要出現的列,在處理多列時這是一個很好的解決方案!
圖1-開始
圖2-點選顯示的CheckBox後
解決方案:
public void bind()
GridView1.Columns[3].Visible = false;//一開始隐藏
CheckBox1.Checked = false;//如果不這樣後面的代碼會把他True
輕按兩下CheckBox1,在CheckedChanged方法裡寫上代碼,最後代碼如下:
protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;
Response.Write("GridView1的第4列現在的顯示隐藏狀态是:"+GridView1.Columns[3].Visible.ToString());
注意:CheckBox1的AutoPostBack要True!
背景全部代碼如下:
SqlCommand sqlcom;
}
GridView1.Columns[3].Visible = false;
CheckBox1.Checked = false;
protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
<body style="font-size=12px">
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" >
<asp:BoundField DataField="郵政編碼" HeaderText="郵政編碼" SortExpression="郵政編碼" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:CheckBox ID="CheckBox1" runat="server" AutoPostBack="True" Font-Size="12px"
OnCheckedChanged="CheckBox1_CheckedChanged" Text="顯示隐藏家庭住址" /></div>
13.GridView彈出新頁面/彈出制定大小位置新視窗:
方案一:簡單的方法,新視窗不固定大小
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
<asp:HyperLinkField HeaderText="姓名" Text="姓名" DataNavigateUrlFields="姓名" DataNavigateUrlFormatString="Default6.aspx?GoodsID={0}" Target="mainframe" NavigateUrl="~/Default6.aspx" DataTextField="姓名" >
</asp:HyperLinkField>
DataNavigateUrlFields是連結的字段名,DataNavigateUrlFormatString是路徑。
方案二:精确控制彈出視窗大小位置
<asp:HyperLinkColumn DataNavigateUrlField="EmployeeID" DataNavigateUrlFormatString="javascript:varwin=window.open('detail.aspx?ID={0}',null,'width=300,height=200');window.Close();"
DataTextField="LastName" HeaderText="LastName"></asp:HyperLinkColumn>
使用的是結合javascript的window.open方法,關于window.open的參數網上有很多文章,本站也有許多參考
14.GridView固定表頭(不用javascript隻用CSS!,很好用):
代碼:
<style>
.Freezing
{
position:relative ;
table-layout:fixed;
top:expression(this.offsetParent.scrollTop);
z-index: 10;
}
.Freezing th{text-overflow:ellipsis;overflow:hidden;white-space: nowrap;padding:2px;}
</style>
<div style="overflow-y: scroll; height: 200px;width:300px" id="dvBody">
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated" >
<asp:BoundField DataField="姓名" HeaderText="姓名" />
<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"/>
</div>
用法:CSS設如上的樣式,HeaderStyle加CssClass="Freezing,套住GridView的Div設定高度寬度 <div style="overflow-y: scroll; height: 200px;width:200px" >
15.GridView合并表頭多重表頭無錯完美版(以合并3列3行舉例)
using System.Drawing;
string sqlstr = "select top 10 * from 飛狐工作室";
//這裡就是解決方案
protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
switch (e.Row.RowType)
case DataControlRowType.Header:
//第一行表頭
TableCellCollection tcHeader = e.Row.Cells;
tcHeader.Clear();
tcHeader.Add(new TableHeaderCell());
tcHeader[0].Attributes.Add("rowspan", "3"); //跨Row
tcHeader[0].Attributes.Add("bgcolor", "white");
tcHeader[0].Text = "";
//tcHeader[1].Attributes.Add("bgcolor", "Red");
tcHeader[1].Attributes.Add("colspan", "6"); //跨Column
tcHeader[1].Text = "全部資訊</th></tr><tr>";
//第二行表頭
tcHeader[2].Attributes.Add("bgcolor", "DarkSeaGreen");
tcHeader[2].Text = "身份證号碼";
tcHeader[3].Attributes.Add("bgcolor", "LightSteelBlue");
tcHeader[3].Attributes.Add("colspan", "2");
tcHeader[3].Text = "基本資訊";
tcHeader[4].Attributes.Add("bgcolor", "DarkSeaGreen");
tcHeader[4].Text = "福利";
tcHeader[5].Attributes.Add("bgcolor", "LightSteelBlue");
tcHeader[5].Attributes.Add("colspan", "2");
tcHeader[5].Text = "聯系方式</th></tr><tr>";
//第三行表頭
tcHeader[6].Attributes.Add("bgcolor", "Khaki");
tcHeader[6].Text = "身份證号碼";
tcHeader[7].Attributes.Add("bgcolor", "Khaki");
tcHeader[7].Text = "姓名";
tcHeader[8].Attributes.Add("bgcolor", "Khaki");
tcHeader[8].Text = "出生日期";
tcHeader[9].Attributes.Add("bgcolor", "Khaki");
tcHeader[9].Text = "薪水";
tcHeader[10].Attributes.Add("bgcolor", "Khaki");
tcHeader[10].Text = "家庭住址";
tcHeader[11].Attributes.Add("bgcolor", "Khaki");
tcHeader[11].Text = "郵政編碼";
break;
前台:
<body >
<div >
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowEditing="GridView1_RowEditing"
<asp:BoundField DataField="出生日期" HeaderText="郵政編碼" />
<asp:BoundField DataField="起薪" HeaderText="起薪" />
<asp:BoundField DataField="郵政編碼" HeaderText="郵政編碼" />
16.GridView突出顯示某一單元格(例如金額低于多少,分數不及格等)
解決方案:主要是綁定後過濾
GridView1.DataBind();
DataRowView mydrv = myds.Tables["飛狐工作室"].DefaultView[i];
string score = Convert.ToString(mydrv["起薪"]);
if (Convert.ToDouble(score) < 34297.00)//大家這裡根據具體情況設定可能ToInt32等等
GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;
全部背景代碼:
public partial class Default7 : System.Web.UI.Page
sqlcom = new SqlCommand(sqlstr, sqlcon);
<head id="Head1" runat="server">
<asp:BoundField DataField="起薪" HeaderText="起薪" DataFormatString="{0:C}" HtmlEncode="false"/>
17.GridView加入自動求和求平均值小計
解決方案:
private double sum = 0;//取指定列的資料和,你要根據具體情況對待可能你要處理的是int
if (e.Row.RowIndex >= 0)
sum += Convert.ToDouble(e.Row.Cells[6].Text);
else if (e.Row.RowType == DataControlRowType.Footer)
e.Row.Cells[5].Text = "總薪水為:";
e.Row.Cells[6].Text = sum.ToString();
e.Row.Cells[3].Text = "平均薪水為:";
e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();
private double sum = 0;//取指定列的資料和
前台:唯一的花頭就是設定ShowFooter="True" ,否則預設表頭為隐藏的!
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound" ShowFooter="True" >
<asp:BoundField DataField="起薪" HeaderText="起薪" />
18.GridView資料導入Excel/Excel資料讀入GridView
頁面增加一個按鈕,單擊事件添加如下方法:
protected void Button1_Click(object sender, EventArgs e)
Export("application/ms-excel", "學生成績報表.xls");
private void Export(string FileType, string FileName)
Response.Charset = "GB2312";
Response.ContentEncoding = System.Text.Encoding.UTF7;
Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
Response.ContentType = FileType;
this.EnableViewState = false;
StringWriter tw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(tw);
GridView1.RenderControl(hw);
Response.Write(tw.ToString());
Response.End();
//如果沒有下面方法會報錯類型“GridView”的控件“GridView1”必須放在具有 runat=server 的窗體标記内
public override void VerifyRenderingInServerForm(Control control)
還有由于是檔案操作是以要引入名稱空間IO和Text
using System.IO;
using System.Text;
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3"
BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" >
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="導出" />
讀取Excel資料的代碼:這個很簡單的
private DataSet CreateDataSource()
string strCon;
strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("excel.xls") + "; Extended Properties=Excel 8.0;";
OleDbConnection olecon = new OleDbConnection(strCon);
OleDbDataAdapter myda = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strCon);
myda.Fill(myds);
return myds;
GridView1.DataSource = CreateDataSource();
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