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如何在Asp.net中使用GridView方法?很多新手对此不是很清楚,为了帮助大家解决这个难题,下面小编将为大家详细讲解,有这方面需求的人可以来学习下,希望你能有所收获。
GridView自带的分页功能实现:
要实现GrdView分页的功能
操作如下:
1、更改GrdView控件的AllowPaging属性为true。
2、更改GrdView控件的PageSize属性为 任意数值(默认为10)
3、更改GrdView控件的PageSetting->Mode为Numeric等(默认为Numeric)该属性为分页样式。
GridView属性设置好了,从页面上也能看到分页样式。
现在开始实现分页的功能:
1、在<<asp:GridView ID=......>后添加,OnPageIndexChanging="GridView1_PageIndexChanging"
2、在对应的aspx.cs中添加:
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
InitPage(); //重新绑定GridView数据的函数
}
3、
GridView1.PageIndex = e.NewPageIndex;
完了之后再重新绑定一下GridView。
GridView添加CheckBox列实现全选/全部取消功能
首先GridView编辑模版,在模板上添加CheckBox控件,之后将新添加列字段转换为TemplateFiled
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 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" AutoGenerateColumns="False" 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" AutoPostBack="True" 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" />
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