灵活使用asp.net中gridview控件的方法有很多种,本文内容很富,希望大家都能有所收获。
1.GridView无代码分页排序:
效果图:
小提示:
1.AllowSorting设为True,aspx代码中是AllowSorting="True";
2.默认1页10条,如果要修改每页条数,修改PageSize即可,在aspx代码中是PageSize="12"。
3.默认的是单向排序的,右击GridView弹出“属性”,选择AllowSorting为True即可。
2.GridView选中,编辑,取消,删除:
效果图:
后台代码:
你可以使用sqlhelper,本文没用。代码如下:
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=数据库名;Uid=帐号;Pwd=密码"; 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(); bind(); } //更新 protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e) { sqlcon = new SqlConnection(strCon); 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); sqlcon.Open(); sqlcom.ExecuteNonQuery(); sqlcon.Close(); GridView1.EditIndex = -1; bind(); } //取消 protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e) { GridView1.EditIndex = -1; bind(); } //绑定 public void bind() { string sqlstr = "select * from 表"; sqlcon = new SqlConnection(strCon); SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); DataSet myds = new DataSet(); sqlcon.Open(); myda.Fill(myds, "表"); GridView1.DataSource = myds; GridView1.DataKeyNames = new string[] { "id" };//主键 GridView1.DataBind(); sqlcon.Close(); } }
前台主要代码:
... ... <asp:GridView ID="GridView1" runat="server" 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="身份证号码" HeaderText="用户ID" ReadOnly="True" /> <asp:BoundField DataField="姓名" HeaderText="用户姓名" /> <asp:BoundField DataField="员工性别" HeaderText="性别" /> <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" /> <asp:CommandField HeaderText="选择" ShowSelectButton="True" /> <asp:CommandField HeaderText="编辑" 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正反双向排序:
效果图:点姓名各2次的排序,点其他也一样可以。
后台代码:
using System; using System.Data; using System.Configuration; using System.Collections; 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 Default3 : System.Web.UI.Page { SqlConnection sqlcon; string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd="; protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { ViewState["SortOrder"] = "身份证号码"; ViewState["OrderDire"] = "ASC"; bind(); } } 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; } bind(); } public void bind() { string sqlstr = "select top 5 * from 飞狐工作室"; sqlcon = new SqlConnection(strCon); SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); DataSet myds = new DataSet(); sqlcon.Open(); myda.Fill(myds, "飞狐工作室"); DataView view = myds.Tables["飞狐工作室"].DefaultView; string sort = (string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDire"]; view.Sort = sort; GridView1.DataSource = view; GridView1.DataBind(); sqlcon.Close(); } }
前台主要代码:
<asp:GridView ID="GridView1" runat="server" AllowSorting="True" CellPadding="3" Font-Size="9pt" OnSorting="GridView1_Sorting" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"> <FooterStyle BackColor="White" ForeColor="#000066" /> <Columns> <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" /> <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/> <asp:BoundField DataField="员工性别" HeaderText="性别" SortExpression="员工性别"/> <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/> </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>
4.GridView和下拉菜单DropDownList结合:
效果图:
后台代码:
using System; using System.Data; using System.Configuration; using System.Collections; 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 Default4 : System.Web.UI.Page { SqlConnection sqlcon; string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa"; protected void Page_Load(object sender, EventArgs e) { DropDownList ddl; if (!IsPostBack) { string sqlstr = "select top 5 * from 飞狐工作室"; sqlcon = new SqlConnection(strCon); SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); DataSet myds = new DataSet(); sqlcon.Open(); myda.Fill(myds, "飞狐工作室"); GridView1.DataSource = myds; GridView1.DataBind(); for (int i = 0; i <= GridView1.Rows.Count - 1; i++) { DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i]; if (Convert.ToString(mydrv["员工性别"]).Trim() == "True") { ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1"); ddl.SelectedIndex = 0; } if (Convert.ToString(mydrv["员工性别"]).Trim() == "False") { ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1"); ddl.SelectedIndex = 1; } } sqlcon.Close(); } } public SqlDataReader ddlbind() { string sqlstr = "select distinct 员工性别 from 飞狐工作室"; sqlcon = new SqlConnection(strCon); SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon); sqlcon.Open(); return sqlcom.ExecuteReader(); }
前台主要代码:
<asp:GridView ID="GridView1" runat="server" AllowSorting="True" CellPadding="3" Font-Size="9pt" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"> <FooterStyle BackColor="White" ForeColor="#000066" /> <Columns> <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" /> <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/> <asp:TemplateField HeaderText="员工性别"> <ItemTemplate> <asp:DropDownList ID="DropDownList1" runat="server" DataSource='<%# ddlbind()%>' DataValueField="员工性别" DataTextField="员工性别"> </asp:DropDownList> </ItemTemplate> </asp:TemplateField> <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/> </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>
5.GridView和CheckBox结合:
效果图:
后台代码:
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 Default5 : System.Web.UI.Page { SqlConnection sqlcon; string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa"; protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { bind(); } } 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; } else { cbox.Checked = false; } } } protected void Button2_Click(object sender, EventArgs e) { sqlcon = new SqlConnection(strCon); SqlCommand sqlcom; for (int i = 0; i <= GridView1.Rows.Count - 1; i++) { CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1"); if (cbox.Checked == true) { string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[i].Value + "'"; sqlcom = new SqlCommand(sqlstr, sqlcon); sqlcon.Open(); sqlcom.ExecuteNonQuery(); sqlcon.Close(); } } bind(); } protected void Button1_Click(object sender, EventArgs e) { CheckBox2.Checked = false; for (int i = 0; i <= GridView1.Rows.Count - 1; i++) { CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1"); cbox.Checked = false; } } public void bind() { string sqlstr = "select top 5 * from 飞狐工作室"; sqlcon = new SqlConnection(strCon); SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); DataSet myds = new DataSet(); sqlcon.Open(); myda.Fill(myds, "tb_Member"); GridView1.DataSource = myds; GridView1.DataKeyNames = new string[] { "身份证号码" }; GridView1.DataBind(); sqlcon.Close(); } }
前台主要代码:
<asp:GridView ID="GridView1" runat="server" AllowSorting="True" CellPadding="3" Font-Size="9pt" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"> <FooterStyle BackColor="White" ForeColor="#000066" /> <Columns> <asp:TemplateField> <ItemTemplate> <asp:CheckBox ID="CheckBox1" runat="server" /> </ItemTemplate> </asp:TemplateField> <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" /> <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/> <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/> </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> <asp:CheckBox ID="CheckBox2" runat="server" Font-Size="9pt" OnCheckedChanged="CheckBox2_CheckedChanged" Text="全选" /> <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.鼠标移到GridView某一行时改变该行的背景色方法一:
效果图:
做法:
双击GridView的OnRowDataBound事件;
在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { int i; //执行循环,保证每条数据都可以更新 for (i = 0; i < GridView1.Rows.Count; i++) { //首先判断是否是数据行 if (e.Row.RowType == DataControlRowType.DataRow) { //当鼠标停留时更改背景色 e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'"); //当鼠标移开时还原背景色 e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c"); } } }
前台代码:
<html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>实现鼠标划过改变GridView的行背景色 清清月儿http://blog.csdn.net/21aspnet </title> </head> <body> <form id="form1" runat="server"> <div> <asp:GridView ID="GridView1" runat="server" DataKeyNames="身份证号码" DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound"> <Columns> <asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" /> <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="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" /> </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:北风贸易ConnectionString1 %>" SelectCommand="SELECT top 5 [身份证号码], [姓名], [员工性别], [家庭住址], [邮政编码] FROM [飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource> </div> </form> </body> </html>
7.鼠标移到GridView某一行时改变该行的背景色方法二:
效果图:
做法:和上面的一样就是代码不同
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { //int i; ////执行循环,保证每条数据都可以更新 //for (i = 0; i < GridView1.Rows.Count; i++) //{ // //首先判断是否是数据行 // if (e.Row.RowType == DataControlRowType.DataRow) // { // //当鼠标停留时更改背景色 // e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'"); // //当鼠标移开时还原背景色 // e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c"); // } //} //如果是绑定数据行 if (e.Row.RowType == DataControlRowType.DataRow) { //鼠标经过时,行背景色变 e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'"); //鼠标移出时,行背景色变 e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'"); } }
8.GridView实现删除时弹出确认对话框:
效果图:
实现方法:
双击GridView的OnRowDataBound事件;
在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { //如果是绑定数据行 if (e.Row.RowType == DataControlRowType.DataRow) { if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate) { ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除:/"" + e.Row.Cells[1].Text + "/"吗?')"); } } }
9.GridView实现自动编号:
效果图:
实现方法:
双击GridView的OnRowDataBound事件;
在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { //如果是绑定数据行 if (e.Row.RowType == DataControlRowType.DataRow) { ////鼠标经过时,行背景色变 //e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'"); ////鼠标移出时,行背景色变 //e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'"); ////当有编辑列时,避免出错,要加的RowState判断 //if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate) //{ // ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除:/"" + e.Row.Cells[1].Text + "/"吗?')"); //} } if (e.Row.RowIndex != -1) { int id = e.Row.RowIndex + 1; e.Row.Cells[0].Text = id.ToString(); } }
注意这时最好把前台的第一列的表头该为“编号”,因为以前的第一列被“吃掉”了。
<asp:GridView ID="GridView1" runat="server" 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"> <FooterStyle BackColor="White" ForeColor="#000066" /> <Columns> <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" /> <asp:BoundField DataField="姓名" HeaderText="用户姓名" /> <asp:BoundField DataField="员工性别" HeaderText="性别" /> <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" /> <asp:CommandField HeaderText="选择" ShowSelectButton="True" /> <asp:CommandField HeaderText="编辑" 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>
10.GridView实现自定义时间货币等字符串格式:
效果图:
图1-未格式化前
图2-格式化后
解决方法:
在asp.net 2.0中,如果要在绑定列中显示比如日期格式等,如果用下面的方法是显示不了的
<asp :BoundField DataField="CreationDate" DataFormatString="{0:M-dd-yyyy}" HeaderText="CreationDate" />
主要是由于htmlencode属性默认设置为true,已防止XSS攻击,安全起见而用的,所以,可以有以下两种方法解决
第一种:
<asp :GridView ID="GridView1" runat="server"> <columns> <asp :BoundField DataField="CreationDate" DataFormatString="{0:M-dd-yyyy}" HtmlEncode="false" HeaderText="CreationDate" /> </columns> </asp>
将htmlencode设置为false即可
另外的解决方法为,使用模版列
<asp :GridView ID="GridView3" runat="server" > <columns> <asp :TemplateField HeaderText="CreationDate" > <edititemtemplate> <asp :Label ID="Label1" runat="server" Text='<%# eval_r("CreationDate", "{0:M-dd-yyyy}") %>'> </asp> </edititemtemplate> <itemtemplate> <asp :Label ID="Label1" runat="server" Text='<%# Bind("CreationDate", "{0:M-dd-yyyy}") %>'> </asp> </itemtemplate> </asp> </columns> </asp>
前台代码:
<asp:GridView ID="GridView1" runat="server" DataKeyNames="身份证号码" DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound"> <Columns> <asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" /> <asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" /> <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" /> <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" /> </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:北风贸易ConnectionString1 %>" SelectCommand="SELECT top 5 [出生日期], [起薪], [身份证号码], [姓名], [家庭住址], [邮政编码] FROM [飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>
附录-常用格式化公式:
{0:C} 货币;
{0:D4}由0填充的4个字符宽的字段中显示整数;
{0:000.0}四舍五入小数点保留第几位有效数字;
{0:N2}小数点保留2位有效数字;{0:N2}% 小数点保留2位有效数字加百分号;
{0:D}长日期;{0:d}短日期;{0:yy-MM-dd} 例如07-3-25;;{0:yyyy-MM-dd} 例如2007-3-25
以上就是asp.net中gridview控件的多种使用方法的第一篇,内容很丰富,之后还有终结篇,希望大家不要错过。