GridView控件自定义分页详解

GridView控件自定义分页详解在这里我们将用一个隐藏字段来保存这个PageIndex,即当前页码.当点击上一页时,将它的值减一,知道为0,要注意的一点这里的第一页页码是0而不是1.下面看看代码,然后我们再分析分析!1<asp:GridView ID="NewsGrid" runat="server" AutoGenerateColumns="False" AllowPaging="false" Width="100%">2 <Columns>3 <asp:BoundField DataField="NewsId" HeaderText="新闻ID"/>4 <asp:HyperLinkField DataNavigateUrlFields="NewsId" DataNavigateUrlFormatString="~/Details.aspx?ID={0}"5 DataTextField="Title" HeaderText="新闻标题" ItemStyle-Width="70%"/>6 <asp:BoundField DataField="PostTime" HeaderText="发布时间"/>7 <asp:CommandField HeaderText="新闻管理" ShowCancelButton="False" ShowDeleteButton="True"8 ShowEditButton="True"/>9 </Columns>10 </asp:GridView>11 <div style=" height:16px; padding-top:5px; margin-right:30px; float:right">12 <asp:HiddenField ID="CurrentPage" runat="server" Value="0"/>13 <asp:LinkButton ID="First" runat="server" CommandArgument="first" OnClick="PagerButton_Click">首页</asp:LinkButton>14 <asp:LinkButton ID="Prev" runat="server" CommandArgument="prev" OnClick="PagerButton_Click">上一页</asp:LinkButton>15 <asp:LinkButton ID="Next" runat="server" CommandArgument="next" OnClick="PagerButton_Click">下一页</asp:LinkButton>16 <asp:LinkButton ID="Last" runat="server" CommandArgument="last" OnClick="PagerButton_Click">尾页</asp:LinkButton>17 </div> CS文件中的代码:1 protected void PagerButton_Click(object sender, EventArgs e)2 {3 int pageIndx = Convert.ToInt32(CurrentPage.Value);4 int totals = NewsManager.GetNews(0, pageSize).TotalRecords;5 int pages = (totals % pageSize) == 0 ? (totals / pageSize) : (totals / pageSize + 1);6 string arg = ((LinkButton)sender).CommandArgument.ToString().ToLower();7 switch (arg)8 {9 case "prev":10 if (pageIndx > 0)11 {12 pageIndx -= 1;13 }14 break;15 case "next":16 if (pageIndx < pages - 1)17 {18 pageIndx += 1;19 }20 break;21 case "last":22 pageIndx = pages - 1;23 break;24 default:25 pageIndx = 0;26 break;27 }28 CurrentPage.Value = pageIndx.ToString();29 NewsGrid.DataSource = NewsManager.GetNews(pageIndx , pageSize).Entities;30 NewsGrid.DataBind();31 }如何在GridView中增加效果protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) {//将满足特定条件的行标为高亮if (e.Row.RowType == DataControlRowType.DataRow)//判定当前的行是否属于datarow类型的行{int money = Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "MONEY"));//取当前行的列值if (money == 77)e.Row.BackColor = Color.Red;//string customer = (string)DataBinder.Eval(e.Row.DataItem, "CUSTOMER");string customer = DataBinder.Eval(e.Row.DataItem, "CUSTOMER").ToString();if (customer == "sdf")e.Row.BackColor = Color.Red;}//加入鼠标滑过的高亮效果if (e.Row.RowType == DataControlRowType.DataRow)//判定当前的行是否属于datarow类型的行{//当鼠标放上去的时候先保存当前行的背景颜色并给附一颜色e.Row.Attributes.Add("onmouseover", "currentcolor=this.style.backgroundColor;this.style.backgroundColor='yellow',this.style.fontWeight='';");//当鼠标离开的时候将背景颜色还原的以前的颜色e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=currentcolor,this.style.fontWeight='';");}//单击行改变行背景颜色if (e.Row.RowType == DataControlRowType.DataRow){e.Row.Attributes.Add("onclick","this.style.backgroundColor='#99cc00'; this.style.color='buttontext';this.style.cursor='default';");}如何在GridView中一次性批量更新多行数据2.0下含有DropDownList的GridView编辑、删除的完整例子！<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" PageSize="10"Width="542px" AllowPaging="True" AllowSorting="True"DataKeyNames="DB31_1,DB31_2"OnRowCancelingEdit="GridView1_RowCancelingEdit" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing" OnRowUpdating="GridView1_RowUpdating" OnPageIndexChanging="GridView1_PageIndexChanging"OnRowDataBound="GridView1_RowDataBound"OnSelectedIndexChanged="GridView1_SelectedIndexChanged" OnSorting="GridView1_Sorting" > <Columns><asp:TemplateField HeaderText="序号"><ItemTemplate><%# this.GridView1.PageIndex * this.GridView1.PageSize +this.GridView1.Rows.Count + 1%></ItemTemplate></asp:TemplateField><asp:TemplateField HeaderText="学历代码" SortExpression="DB1_1"><EditItemTemplate><%--<asp:TextBox ID="TextBox1" runat="server" Text='<%#Bind("DB1_1") %>'></asp:TextBox>--%><asp:DropDownList ID ="ddlXL" runat="server" DataValueField='<%#Bind("DB1_1") %>'></asp:DropDownList></EditItemTemplate><ItemTemplate><asp:Label ID="Label1" runat="server" Text='<%#Bind("xueliText") %>'></asp:Label></ItemTemplate></asp:TemplateField><asp:TemplateField HeaderText="学历名称" SortExpression="DB1_2"><EditItemTemplate><asp:TextBox ID="TextBox2" runat="server" Text='<%#Bind("DB1_2") %>'></asp:TextBox></EditItemTemplate><ItemTemplate><asp:Label ID="Label2" runat="server" Text='<%#Bind("DB1_2") %>'></asp:Label></ItemTemplate></asp:TemplateField><asp:TemplateField HeaderText="操作" ShowHeader="False"><EditItemTemplate><asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="True" CommandName="Update"Text="更新"></asp:LinkButton><asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="Cancel"Text="取消"></asp:LinkButton></EditItemTemplate><ItemTemplate><asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Edit"Text="编辑" OnClientClick="return confirm('确认要编辑吗？');"></asp:LinkButton><asp:LinkButton ID="LinkButton3" runat="server" CausesValidation="False" CommandName="Delete"Text="删除" OnClientClick="return confirm('确认要删除吗？');"></asp:LinkButton><asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="Select"Text="选择"></asp:LinkButton></ItemTemplate></asp:TemplateField></Columns><AlternatingRowStyle BackColor="Aquamarine" /></asp:GridView>/// <summary>/// 绑定数据到GridView/// </summary>private void GridViewBind(){检索数据库string strSql = "SELECT * FROM DB1";得到数据集this.GridView1.DataSource=conn.GetDs(strSql).Tables[0].DefaultView;this.GridView1.DataBind();}/// <summary>/// 编辑当前行/// </summary>/// <param name="sender"></param>/// <param name="e"></param>protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e){GridView1.EditIndex = e.NewEditIndex;//当前编辑行背景色高亮this.GridView1.EditRowStyle.BackColor = Color.FromName("#F7CE90"); GridViewBind();}/// <summary>/// 取消编辑状态/// </summary>/// <param name="sender"></param>/// <param name="e"></param>protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e) {GridView1.EditIndex = -1;GridViewBind();}/// <summary>/// 删除记录过程/// </summary>/// <param name="sender"></param>/// <param name="e"></param>protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e){//得到单位编号string rowToDelete = GridView1.DataKeys[e.RowIndex].Values[0].ToString();//转换为整数//int ID=Convert.ToInt32(rowToDelete);//从数据库中删除string str = "DELETE FROM DB1 where DB1_1=" + "'" + rowToDelete + "'" + "";try{conn.RunSql(str);//重新绑定数据GridViewBind();}catch (Exception ex){Response.Write("数据库错误，错误原因：" + ex.Message);Response.End();}}/// <summary>/// 更新记录过程/// </summary>/// <param name="sender"></param>/// <param name="e"></param>protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e){string ID = GridView1.DataKeys[e.RowIndex].Values[0].ToString();string DB1_1 = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("TextBox1")).Text;//string DB1_2 = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("TextBox2")).Text;string DB1_2 =(((DropDownList))GridView1.Rows[e.RowIndex].FindControl("ddlXL")).SelectedItem.Text;//判断表单项是否有空并给出提示信息if (DB1_1 == "" || DB1_2 == ""){conn.Alert("请输入完整信息！", Page);return;}try{conn.BuilderEdit("select * from DB1 where DB1_1 ='" + ID + "'");conn.dr["DB1_1"] = DB1_1;conn.dr["DB1_2"] = DB1_2;conn.BuilderEditClose();}catch (OracleException err){if (err.Code.ToString() == "1")conn.Alert("错误：已存在具有相同主键的记录", Page);elseconn.Alert("错误：未能添加记录", Page);}Response.Write("<script language='javascript'>alert('数据已被保存!');</script>");//返回浏览状态GridView1.EditIndex = -1;GridViewBind();}/// <summary>/// 分页事件/// </summary>/// <param name="sender"></param>/// <param name="e"></param>protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e){GridView1.PageIndex = e.NewPageIndex;GridViewBind();}/// <summary>/// 加入鼠标效果及为DropDownList绑定值/// </summary>/// <param name="sender"></param>/// <param name="e"></param>protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e){//为DropDownList绑定值if (((DropDownList)e.Row.FindControl("ddlXL")) != null){DropDownList ddlXL = (DropDownList)e.Row.FindControl("ddlXL");ddlXL.Items.Clear();ddlXL.Items.Add(new ListItem("博士", "1"));ddlXL.Items.Add(new ListItem("硕士", "2"));ddlXL.Items.Add(new ListItem("学士", "3"));}//加入鼠标滑过的高亮效果if (e.Row.RowType == DataControlRowType.DataRow)//判定当前的行是否属于datarow类型的行{//当鼠标放上去的时候先保存当前行的背景颜色并给附一颜色e.Row.Attributes.Add("onmouseover","currentcolor=this.style.backgroundColor;this.style.backgroundColor='yellow',this.style.fontWeight='';");//当鼠标离开的时候将背景颜色还原的以前的颜色e.Row.Attributes.Add("onmouseout","this.style.backgroundColor=currentcolor,this.style.fontWeight='';");}//单击行改变行背景颜色if (e.Row.RowType == DataControlRowType.DataRow){e.Row.Attributes.Add("onclick", "this.style.backgroundColor='#99cc00';this.style.color='buttontext';this.style.cursor='default';");}}2.0下含有CheckBox的GridView删除选定记录实例<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" PageSize="5"2 Width="726px" AllowPaging="True" AllowSorting="True"3 DataKeyNames="DB1_1,DB1_2" OnRowDeleting="GridView1_RowDeleting" OnPa geIndexChanging="GridView1_PageIndexChanging" OnRowDataBound="GridView1_RowDataBound" OnSorting="GridView1_Sorting" Height="279px" >4 <Columns>5 <asp:TemplateField HeaderText="序号" >6 <ItemTemplate>7 <%# this.GridView1.PageIndex * this.GridView1.PageSize +this.GridView1.Rows.Count + 1%>8 </ItemTemplate>9 </asp:TemplateField>10 <asp:TemplateField HeaderText="选择" >11 <ItemTemplate>12 <asp:CheckBox ID="chkSelect" runat="server" ></asp:CheckBox>13 </ItemTemplate>14 </asp:TemplateField>15 <asp:TemplateField HeaderText="操作" ShowHeader="False">16 <ItemTemplate>17 <asp:LinkButton ID="lbtnDelete" runat="server" CausesValidation="False" CommandName="Delete"18 Text="删除" OnClientClick="return confirm('确认要删除吗？');"></asp:LinkButton>19 </ItemTemplate>20 </asp:TemplateField>21 </Columns>22 <AlternatingRowStyle BackColor="Aquamarine" />23 </asp:GridView>1 <asp:CheckBox ID="chkSelectAll" runat="server" Text="全部选中"OnCheckedChanged="chkSelectAll_CheckedChanged" AutoPostBack="True" ></asp:CheckBox>2 <asp:Button ID="btnDelete" runat="server" Text="删除" OnClick="btnDelete_Click" />1 protected void btnDelete_Click(object sender, EventArgs e)2 {3 string strDelete = "";4 for (int i = 0; i < this.GridView1.Rows.Count; i++)5 {6 string Label;7 bool isChecked = ((CheckBox)GridView1.Rows[i].FindControl("chkSelect")).Checked;8 Label = ((Label)GridView1.Rows[i].FindControl("labXH")).Text;9 if (isChecked)10 {11 strDelete = "DB1_1" + "=" + Label;12 }13 }14 conn.RunSql("Delete from DB1 where " + strDelete15 this.chkSelectAll.Checked = false;16 GridViewBind();17 }1819 protected void chkSelectAll_CheckedChanged(object sender, EventArgs e)20 {21 //遍历GridView行获取CheckBox属性22 for (int i = 0; i < this.GridView1.Rows.Count; i++)23 {24 ((CheckBox)GridView1.Rows[i].FindControl("chkSelect")).Checked =this.chkSelectAll.Checked;25 }26 }。