18
2012
07

GridView自定义的模版分页，简单实现

 

1：GridView自带分页：GridView自带的分页，是假分页，他每次从数据库把数据全部查询出之后，通过分页的算法，进行按每页数量进行分页。
分页的属性元素：分页功能的实现就是通过对这些属性元素的操作实现的。
//this.GvShow.PageIndex 当前页的索引
//this.GvShow.PageCount 总共的页数
//this.GvShow.Rows.Count 当前页签内的gridview的行数
//this.GvShow.PageSize 每页的记录数
//this.GvShow.PageIndex*this.GvShow.rows.count + 1   行索引
前台设置普通的GridView分页：属性AllowPaging="True"、PageSize="2"设置分页事件
onpageindexchanging="GvShow_PageIndexChanging"
后台方法绑定：
protected void GvShow_PageIndexChanging(object sender, GridViewPageEventArgs e)
{this.GvShow.PageIndex = e.NewPageIndex;
BindView();}
 
2：自定义样式的GridView自带分页：
普通的GridView自带的分页，不带样式，只是普通的1,2,3等，如果希望获取到具有其他分页样式就应该设置<PagerSettings Position="TopAndBottom"   PageButtonCount="1" />属性
<%--FirstPageText="首页" LastPageText="尾页" NextPageText="下一页" PreviousPageText="上一页"--%>
后台访问此属性的实例：
this.GvShow.PagerSettings.FirstPageText = "首页";
this.GvShow.PagerSettings.LastPageText = "尾页";
this.GvShow.PagerSettings.NextPageText = "下一页";
this.GvShow.PagerSettings.PreviousPageText = "上一页";
this.GvShow.PagerSettings.Mode = PagerButtons.NextPreviousFirstLast;
通过<PagerStyle HorizontalAlign="Center" VerticalAlign="Middle" />属性可以设置GRIDVIEW分页的样式
 
3：在<PagerTemplate></PagerTemplate>分页模板中自定义分页的样式，虽然微软开辟了这个模板提供给用户类似于自定义分页的功能，但这个功能完全还是基于微软的GridView自带的分页进行的，<PagerSettings>属性的Visable的属性必须是true AllowPaging="true" 与 PageSize="3"属性页都要进行相关的有效设置才可以。这种情况下的分页可以不使用onpageindexchanging="GvShow_PageIndexChanging"微软自带的分页事件，开发自己独立的分页事件与方法即可
范例：
前台代码：
<asp:GridView id="GvShow" runat="server" Width="910px" BorderColor="#687BC4" BorderWidth="1px" CellPadding="1"
HorizontalAlign="Center" BorderStyle="None" AllowPaging="true" PageSize="3"
AutoGenerateColumns="False" onpageindexchanging="GvShow_PageIndexChanging" onrowdatabound="GvShow_RowDataBound" Height="132px" onrowcommand="GvShow_RowCommand">       
     <SelectedRowStyle ForeColor="#FFFF99" BackColor="#FFFF99"></SelectedRowStyle>
     <AlternatingRowStyle BackColor="#EEF2F1"></AlternatingRowStyle>
     <RowStyle BackColor="White" Height="24" ></RowStyle>
     <HeaderStyle Wrap="False" HorizontalAlign="Center" Height="24px" ForeColor="Black" VerticalAlign="Middle"
                   BackColor="#BFD5FA"></HeaderStyle>
     <%--<PagerSettings Position="TopAndBottom" />--%>
     <%--FirstPageText="首页" LastPageText="尾页" NextPageText="下一页" PreviousPageText="上一页"--%>
     <PagerStyle ForeColor="White" HorizontalAlign="Center" BackColor="ActiveBorder" Font-Underline="false" />
     <Columns>
     <asp:TemplateField HeaderText="省份"><ItemStyle HorizontalAlign="Center" VerticalAlign="Middle"></ItemStyle>
     <ItemTemplate>
<asp:Label ID="lblRegionName" runat="server" Text='<%#Eval("rname") %>' ></asp:Label>
     </ItemTemplate></asp:TemplateField>   
     <asp:TemplateField HeaderText="城市">
     <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle"></ItemStyle>
     <ItemTemplate>
     <asp:Label ID="lblCityName" runat="server" Text='<%#Eval("cname") %>' ></asp:Label>
     </ItemTemplate>
     </asp:TemplateField>
     <asp:TemplateField HeaderText="用户名">
     <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle"></ItemStyle>
     <ItemTemplate>
     <asp:Label ID="lblUserName" runat="server" Text='<%#Eval("username") %>'></asp:Label>
     </ItemTemplate></asp:TemplateField></Columns>
     <PagerTemplate>
     <table cellSpacing="0" cellPadding="0" width="100%" align="center" border="0">
     <tr><td vAlign="middle" align="center">
『<asp:linkbutton id="cmdbegin" runat="server" CommandName="begin" >首页</asp:linkbutton>』
『<asp:linkbutton id="cmdbefore" runat="server" CommandName="before" >上一页</asp:linkbutton>』
『<asp:linkbutton id="cmdafter" runat="server" CommandName="after" >下一页</asp:linkbutton>』
『<asp:linkbutton id="cmdend" runat="server" CommandName="end" >尾页</asp:linkbutton>』</td>
     <td vAlign="middle" align="center">页次：
<asp:label id="txtNowPage" runat="server" ForeColor="red">0</asp:label>/<asp:label id="txtAllPage" runat="server" ForeColor="red">0</asp:label>页&nbsp;共<asp:label id="txtTotal" runat="server" ForeColor="red">0</asp:label>条记录&nbsp; <asp:label id="txtNowRed" runat="server" ForeColor="red">0</asp:label>条记录/页</td>
     <td vAlign="top" align="center"><asp:checkbox id="cmdCheck" runat="server" Text="显示数字按钮" AutoPostBack="True" oncheckedchanged="cmdCheck_CheckedChanged" ></asp:checkbox></td></tr></table></PagerTemplate></asp:GridView>
后台代码：
namespace GridViewDemo.GridView分页系列
{
    public partial class GridView自定义分页02 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                BindView();
                InitButtons();
            }
        }
        private void BindView()
        {
            DataTable dt = UserDemoAccess.GetUserSouce();
            ViewState["RowCounts"] = dt.Rows.Count.ToString();
            this.GvShow.DataSource = dt;;
            this.GvShow.DataBind();
        }
        protected void GvShow_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            this.GvShow.PageIndex = e.NewPageIndex;
            BindView();
            InitButtons();
        }
        protected void GvShow_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                e.Row.Attributes.Add("onmouseover", "this.setAttribute('BKC',this.style.backgroundColor);
this.style.cursor='default',this.style.backgroundColor='#ffff99'");
                e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=this.getAttribute('BKC');");
            }
            //if(e.Row.RowType == DataControlRowType.Pager)
            //{
            //    GridViewRow gr = e.Row;
            //    //页次 -- 第几页
            //    Label txtNowPage = gr.FindControl("txtNowPage") as Label;
            //    //总页数
            //    Label txtAllPage = gr.FindControl("txtAllPage") as Label;
            //    //总记录数
            //    Label txtTotal = gr.FindControl("txtTotal") as Label;
            //    //条记录/页
            //    Label txtNowRed = gr.FindControl("txtNowRed") as Label;
            //    txtNowPage.Text = (this.GvShow.PageIndex+1).ToString();
            //    txtAllPage.Text = this.GvShow.PageCount.ToString();
            //    txtTotal.Text = ViewState["RowCounts"].ToString();
            //    txtNowRed.Text = this.GvShow.PageSize.ToString();
           //}
        }
        protected void cmdCheck_CheckedChanged(object sender, EventArgs e)
        {
            //CheckBox cmdCheck = this.GvShow.BottomPagerRow.FindControl("cmdCheck") as CheckBox;
            //if (cmdCheck.Checked)
            //{
            //    this.GvShow.PagerSettings.Mode = PagerButtons.Numeric;
            //}
        }
        protected void GvShow_RowCommand(object sender, GridViewCommandEventArgs e)
        {     //控制页签
             switch(e.CommandName)
             {
                 case "begin":
                     this.GvShow.PageIndex = 0;
                     break;
                 case "before":
                     if(this.GvShow.PageIndex > 0)
                     {
                         this.GvShow.PageIndex -= 1;
                     }
                     ; break;
                 case "after":
                     if(this.GvShow.PageIndex < this.GvShow.PageCount - 1)
                     {
                         this.GvShow.PageIndex += 1;
                     }
                     ; break;
                 case "end":
                     this.GvShow.PageIndex = this.GvShow.PageCount-1;
                     ; break;
             }
             //控制按钮
             InitButtons();
        }
        private void InitButtons()
        {       //获取gridviewrows的PagerTemplate底部模板
                GridViewRow gr = this.GvShow.BottomPagerRow;
                LinkButton cmdbegin = gr.FindControl("cmdbegin") as LinkButton;
                LinkButton cmdbefore = gr.FindControl("cmdbefore") as LinkButton;
                LinkButton cmdafter = gr.FindControl("cmdafter") as LinkButton;
                LinkButton cmdend = gr.FindControl("cmdend") as LinkButton;
               //页次 -- 第几页
                Label txtNowPage = gr.FindControl("txtNowPage") as Label;
                //总页数
                Label txtAllPage = gr.FindControl("txtAllPage") as Label;
                //总记录数
                Label txtTotal = gr.FindControl("txtTotal") as Label;
                //条记录/页
                Label txtNowRed = gr.FindControl("txtNowRed") as Label;
                txtNowPage.Text = (this.GvShow.PageIndex + 1).ToString();
                txtAllPage.Text = this.GvShow.PageCount.ToString();
                txtTotal.Text = ViewState["RowCounts"].ToString();
                txtNowRed.Text = this.GvShow.PageSize.ToString();
                cmdbegin.Enabled = false;
                cmdbefore.Enabled = false;
                cmdafter.Enabled = false;
                cmdend.Enabled = false;
                if(this.GvShow.PageCount > 1)
                {
                    cmdbegin.Enabled = true;
                    cmdbefore.Enabled = true;
                    cmdafter.Enabled = true;
                    cmdend.Enabled = true;
                     if(this.GvShow.PageIndex == 0)
                     {
                         cmdbegin.Enabled = false;
                         cmdbefore.Enabled = false;
                     }else if(this.GvShow.PageIndex == this.GvShow.PageCount-1)
                     {
                         cmdafter.Enabled = false;
                         cmdend.Enabled = false;
                     }
                }
        }
    }
}
此外还可以不利用GridView自带的分页模板标记<PagerTemplate></PagerTemplate>可以在GridView的外部构造一个talbe与gridview对应，这样更加灵活，也应用于div中的GridView。
前台代码：
<table id="tablePager" runat="server" cellSpacing="0" cellPadding="0" width="100%" align="center" border="0">
<tr>
<td vAlign="middle" align="center">
『<asp:linkbutton id="cmdbegin" runat="server" CommandName="begin" OnCommand="PagerButton_Command" >首页</asp:linkbutton>』
『<asp:linkbutton id="cmdbefore" runat="server" CommandName="before" OnCommand="PagerButton_Command" >上一页</asp:linkbutton>』
『<asp:linkbutton id="cmdafter" runat="server" CommandName="after" OnCommand="PagerButton_Command" >下一页</asp:linkbutton>』
『<asp:linkbutton id="cmdend" runat="server" CommandName="end" OnCommand="PagerButton_Command" >尾页</asp:linkbutton>』
</td>
<td vAlign="middle" align="center">页次：<asp:label id="txtNowPage" runat="server" ForeColor="red">0</asp:label>/<asp:label id="txtAllPage" runat="server" ForeColor="red">0</asp:label>页&nbsp;
共<asp:label id="txtTotal" runat="server" ForeColor="red">0</asp:label>条记录&nbsp;
<asp:label id="txtNowRed" runat="server" ForeColor="red">0</asp:label>条记录/页
</td>
<td vAlign="top" align="center"><asp:checkbox id="cmdCheck" runat="server" Text="显示数字按钮" AutoPostBack="True" oncheckedchanged="cmdCheck_CheckedChanged" ></asp:checkbox></td></tr></table>
这俩种方式的区别在于：适用内部的分页模板标记，在触发事件后，不用重新绑定GridView，这个是由GridView内部的分页机制自动完成的，而采用外部构造的方式，在执行完之后，必须重新绑定gridview，因为这个时候的pageIndex等信息已经变化，需要重新进行绑定。
后台代码：
protected void PagerButton_Command(object sender, System.Web.UI.WebControls.CommandEventArgs e)
        {
            switch (e.CommandName)
            {
                case "begin":
                    this.GvShow.PageIndex = 0;
                    ; break;
                case "before":
                    if (this.GvShow.PageIndex > 0)
                    {
                        this.GvShow.PageIndex -= 1;
                    }
                    ; break;
                case "after":
                    if (this.GvShow.PageIndex < this.GvShow.PageCount - 1)
                    {
                        this.GvShow.PageIndex += 1;
                    }
                    ; break;
                case "end":
                    this.GvShow.PageIndex = this.GvShow.PageCount - 1;
                    ; break;
            }
            //在设置完页签后，将数据源重新绑定到GridView中
            BindView();
            InitButtons();
        }
一个很好样式的假分页，功能齐全：
前台页面:
<table><tr><td>
<asp:GridView id="GvShow" runat="server" Width="910px" BorderColor="#687BC4" BorderWidth="1px" PageSize="3"
              CellPadding="1" HorizontalAlign="Center" BorderStyle="None" AllowPaging="true" Height="132px"
              AutoGenerateColumns="False"   onrowdatabound="GvShow_RowDataBound" >      
<SelectedRowStyle ForeColor="#FFFF99" BackColor="#FFFF99"></SelectedRowStyle>
<AlternatingRowStyle BackColor="#EEF2F1"></AlternatingRowStyle>
<RowStyle BackColor="White" Height="24" ></RowStyle>
<HeaderStyle Wrap="False" HorizontalAlign="Center" Height="24px" ForeColor="Black" VerticalAlign="Middle"
                                 BackColor="#BFD5FA"></HeaderStyle>
<PagerStyle ForeColor="White" HorizontalAlign="Center" BackColor="ActiveBorder" Font-Underline="false" />
<PagerSettings Mode="Numeric" Position="Bottom" Visible="false" />
<Columns>
<asp:TemplateField HeaderText="省份">
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle"></ItemStyle>
<ItemTemplate><asp:Label ID="lblRegionName" runat="server" Text='<%#Eval("rname") %>' >
</asp:Label></ItemTemplate></asp:TemplateField>   
<asp:TemplateField HeaderText="城市">
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle"></ItemStyle>
<ItemTemplate><asp:Label ID="lblCityName" runat="server" Text='<%#Eval("cname") %>' >
</asp:Label></ItemTemplate></asp:TemplateField>
<asp:TemplateField HeaderText="用户名">
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle"></ItemStyle>
<ItemTemplate><asp:Label ID="lblUserName" runat="server" Text='<%#Eval("username") %>'></asp:Label>
</ItemTemplate></asp:TemplateField></Columns></asp:GridView></td></tr>
<tr><td><table id="tablePager" runat="server" cellSpacing="0" cellPadding="0" width="100%" align="center" border="0">
<tr> <td vAlign="middle" align="center">
『<asp:linkbutton id="cmdbegin" runat="server" CommandName="begin" OnCommand="PagerButton_Command" >首页</asp:linkbutton>』
『<asp:linkbutton id="cmdbefore" runat="server" CommandName="before" OnCommand="PagerButton_Command" >上一页</asp:linkbutton>』
『<asp:linkbutton id="cmdafter" runat="server" CommandName="after" OnCommand="PagerButton_Command" >下一页</asp:linkbutton>』
『<asp:linkbutton id="cmdend" runat="server" CommandName="end" OnCommand="PagerButton_Command" >尾页</asp:linkbutton>』
</td>
<td vAlign="middle" align="center">页次：<asp:label id="txtNowPage" runat="server" ForeColor="red">0</asp:label>/<asp:label id="txtAllPage" runat="server" ForeColor="red">0</asp:label>页&nbsp;
共<asp:label id="txtTotal" runat="server" ForeColor="red">0</asp:label>条记录&nbsp;
<asp:label id="txtNowRed" runat="server" ForeColor="red">0</asp:label>条记录/页</td>
<td><asp:LinkButton ID="lbtnTurnNewPage" runat="server" Text="跳转" onclick="lbtnTurnNewPage_Click">
</asp:LinkButton>
<asp:TextBox ID="txtTurn" runat="server" Width="20" Height="20"></asp:TextBox></td>
<td><asp:DropDownList ID="drpPageNumbers" runat="server" AutoPostBack="true" onselectedindexchanged="drpPageNumbers_SelectedIndexChanged"></asp:DropDownList></td></tr></table></td></tr></table>
后台页面：
namespace GridViewDemo.GridView分页系列
{
    public partial class GridView自定义分页04 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                BindView();
                InitButtons();
                InitDrp();
            }
        }
        private void BindView()
        {
            DataTable dt = UserDemoAccess.GetUserSouce();
            ViewState["PageCount"] = dt.Rows.Count.ToString();
            this.GvShow.DataSource = dt; ;
            this.GvShow.DataBind();
        }
        protected void GvShow_RowDataBound(object sender, GridViewRowEventArgs e)
        {   if (e.Row.RowType == DataControlRowType.DataRow)
            {
                e.Row.Attributes.Add("onmouseover", "this.setAttribute('BKC',this.style.backgroundColor);
this.style.cursor='default',this.style.backgroundColor='#ffff99'");
                e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=this.getAttribute('BKC');");
            }
        }
        protected void PagerButton_Command(object sender, System.Web.UI.WebControls.CommandEventArgs e)
        {
            switch (e.CommandName)
            {
                case "begin":
                    this.GvShow.PageIndex = 0;
                    ; break;
                case "before":
                    if (this.GvShow.PageIndex > 0)
                    {
                        this.GvShow.PageIndex -= 1;
                    }
                    ; break;
                case "after":
                    if (this.GvShow.PageIndex < this.GvShow.PageCount - 1)
                    {
                        this.GvShow.PageIndex += 1;
                    }
                    ; break;
                case "end":
                    this.GvShow.PageIndex = this.GvShow.PageCount - 1;
                    ; break;
            }
            BindView();
            InitButtons();
        }
        private void InitButtons()
        {
            txtNowPage.Text = (this.GvShow.PageIndex + 1).ToString();
            txtAllPage.Text = this.GvShow.PageCount.ToString();
            txtTotal.Text = ViewState["PageCount"].ToString();
            txtNowRed.Text = this.GvShow.PageSize.ToString();
            this.cmdbegin.Enabled = false;
            this.cmdbefore.Enabled = false;
            this.cmdafter.Enabled = false;
            this.cmdend.Enabled = false;
            if (this.GvShow.PageCount > 1)
            {
                this.cmdbegin.Enabled = true;
                this.cmdbefore.Enabled = true;
                this.cmdafter.Enabled = true;
                this.cmdend.Enabled = true;
                if (this.GvShow.PageIndex == 0)
                {
                    this.cmdbegin.Enabled = false;
                    this.cmdbefore.Enabled = false;
                }
                else if (this.GvShow.PageIndex == this.GvShow.PageCount - 1)
                {
                    this.cmdafter.Enabled = false;
                    this.cmdend.Enabled = false;
                }
            }
        }
        protected void lbtnTurnNewPage_Click(object sender, EventArgs e)
        {
            try
            {
                int pageIndexNumber = Convert.ToInt32(this.txtTurn.Text.Trim());
                if (pageIndexNumber > this.GvShow.PageCount)
                {
                    Response.Write("越界！");
                    return;
                }
                else if (pageIndexNumber <= 0)
                {
                    Response.Write("负数不灵！");
                    return;
                }
                this.GvShow.PageIndex = pageIndexNumber-1;
                BindView();
                InitButtons();
            }
            catch
            {
                Response.Write("请输入数字！");
                return;
            }
        }
        #region下拉列表分页跳转
        protected void drpPageNumbers_SelectedIndexChanged(object sender, EventArgs e)
        {
            DropDownList drpPageNumbers = (DropDownList)sender;
            //改变GridView的页签
            this.GvShow.PageIndex = Convert.ToInt32(ControlDrp);
            //页签改变后，重新绑定
            BindView();
            InitButtons();
        }
        private void InitDrp()
        {
            this.drpPageNumbers.Items.Clear();
            for (int i = 0; i <this.GvShow.PageCount;i++ )
            {
                this.drpPageNumbers.Items.Add(new ListItem((i+1).ToString(), i.ToString()));
            }
        }
        private String ControlDrp
        {
            set
            {
                this.drpPageNumbers.SelectedValue = value;
            }
            get
            {
                return this.drpPageNumbers.SelectedValue;
            }
        }
        #endregion
    }
}
一个利用<PagerTemplate> </PagerTemplate>模板实现的假分页实例：（可以在绑定的时候加入dropdownlist的页面选择）
前台页面：
<asp:GridView id="GvShow" runat="server" Width="910px" BorderColor="#687BC4" BorderWidth="1px" PageSize="3"
              CellPadding="1" HorizontalAlign="Center" BorderStyle="None" AllowPaging="true" Height="132px"
              AutoGenerateColumns="False" onrowdatabound="GvShow_RowDataBound"
              onpageindexchanging="GvShow_PageIndexChanging" >      
<SelectedRowStyle ForeColor="#FFFF99" BackColor="#FFFF99"></SelectedRowStyle>
<AlternatingRowStyle BackColor="#EEF2F1"></AlternatingRowStyle>
<RowStyle BackColor="White" Height="24" ></RowStyle>
<HeaderStyle Wrap="False" HorizontalAlign="Center" Height="24px" ForeColor="Black" VerticalAlign="Middle"
                                 BackColor="#BFD5FA"></HeaderStyle>
<PagerStyle ForeColor="Blue" HorizontalAlign="Center" BackColor="ActiveBorder" Font-Underline="false" />
<Columns><asp:TemplateField HeaderText="省份">
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle"></ItemStyle>
<ItemTemplate><asp:Label ID="lblRegionName" runat="server" Text='<%#Eval("rname") %>' ></asp:Label></ItemTemplate>
</asp:TemplateField>   
<asp:TemplateField HeaderText="城市"><ItemStyle HorizontalAlign="Center" VerticalAlign="Middle"></ItemStyle>
<ItemTemplate><asp:Label ID="lblCityName" runat="server" Text='<%#Eval("cname") %>' ></asp:Label></ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="用户名"><ItemStyle HorizontalAlign="Center" VerticalAlign="Middle"></ItemStyle>
<ItemTemplate><asp:Label ID="lblUserName" runat="server" Text='<%#Eval("username") %>'></asp:Label></ItemTemplate>
</asp:TemplateField></Columns>
<PagerTemplate><table align="right" bgcolor="#e9e9e9" width="100%"><tr><td style="text-align: right">
 [第<b><asp:Label ID="lblPageIndex" runat="server" Text="<%#((GridView)Container.Parent.Parent).PageIndex + 1 %>"></asp:Label></b>页]
 [共<b><asp:Label ID="lblPageCount" runat="server" Text="<%# ((GridView)Container.Parent.Parent).PageCount %>"></asp:Label></b>页]
<asp:LinkButton ID="btnFirst" runat="server" CausesValidation="False" CommandArgument="First" CommandName="Page" Enabled="<%# ((GridView)Container.NamingContainer).PageIndex != 0 %>" Text="首页"></asp:LinkButton>
<asp:LinkButton ID="btnPrev" runat="server" CausesValidation="False" CommandArgument="Prev" CommandName="Page" Enabled=" <%# ((GridView)Container.NamingContainer).PageIndex != 0 %>"Text="上一页"></asp:LinkButton>
<asp:LinkButton ID="btnNext" runat="server" CausesValidation="False" CommandArgument="Next" CommandName="Page" Enabled=" <%# ((GridView)Container.NamingContainer).PageIndex != ((GridView)Container.NamingContainer).PageCount - 1 %>" Text="下一页"></asp:LinkButton>
<asp:LinkButton ID="btnLast" runat="server" CausesValidation="False" CommandArgument="Last" CommandName="Page" Enabled=" <%# ((GridView)Container.NamingContainer).PageIndex != ((GridView)Container.NamingContainer).PageCount - 1 %>"Text="尾页"></asp:LinkButton>
<asp:TextBox ID="txtNewPageIndex" runat="server" Text="<%# ((GridView)Container.Parent.Parent).PageIndex + 1%>"Width="20px"></asp:TextBox>
<asp:LinkButton ID="btnGo" runat="server" CausesValidation="false" CommandArgument="-1" CommandName="Page" Text="GO" ></asp:LinkButton></td></tr></table></PagerTemplate></asp:GridView>
 
namespace GridViewDemo.GridView分页系列
{
    public partial class GridView自定义分页05 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                BindView();
            }
        }
        private void BindView()
        {
            DataTable dt = UserDemoAccess.GetUserSouce();
            this.GvShow.DataSource = dt; ;
            this.GvShow.DataBind();
        }
        protected void GvShow_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                e.Row.Attributes.Add("onmouseover", "this.setAttribute('BKC',this.style.backgroundColor);this.style.cursor='default',this.style.backgroundColor='#ffff99'");
                e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=this.getAttribute('BKC');");
            }
        }
        protected void GvShow_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            GridViewRow gr = this.GvShow.BottomPagerRow;
            TextBox txtNewPageIndex = gr.FindControl("txtNewPageIndex") as TextBox;
            string content = CheckPageIndex();
            if (content != string.Empty)
            {
                Show(this, content);
                //如果发现异常，则重新将文本框中的值，置换成当前页签的！
                txtNewPageIndex.Text = (this.GvShow.PageIndex+1).ToString();
                return;
            }//NewPageIndex 本页跳转点击go的时候，为-2，增加一个处理！微软自带分页中，选中页签当前页无法再点击
            //此时的e.NewPageIndex默认为-2
            else if (e.NewPageIndex < 0)
            {
                int pageIndexTemp = Convert.ToInt32(txtNewPageIndex.Text) - 1;
                this.GvShow.PageIndex = pageIndexTemp;
                BindView();
                return;
            }
            this.GvShow.PageIndex = e.NewPageIndex;
            BindView();
        }
        //protected void LinkTurn_Command(object sender,System.Web.UI.WebControls.CommandEventArgs e)
        //{
        //     if (e.CommandArgument.ToString() == "-1")
        //     {
        //         GridViewRow gr = this.GvShow.BottomPagerRow;
        //         TextBox txtNewPageIndex = gr.FindControl("txtNewPageIndex") as TextBox;
        //         try
        //         {
        //             int pageIndex = Convert.ToInt32(txtNewPageIndex.Text);
        //             string content = CheckPageIndex(pageIndex, "command");
        //             if ( content != string.Empty)
        //             {
        //                 Show(this, content);
        //                return;
        //             }
        //             this.GvShow.PageIndex = pageIndex - 1;
        //             BindView();
        //         }
        //         catch
        //         {
        //             Show(this, "只能输入数字格式！");
        //             return;
        //         }
        //     }
        //} 
        private string CheckPageIndex()
        {
            string cotent = string.Empty;
            GridViewRow gr = this.GvShow.BottomPagerRow;
            TextBox txtNewPageIndex = gr.FindControl("txtNewPageIndex") as TextBox;
            try
            {
                int pageIndexTemp = Convert.ToInt32(txtNewPageIndex.Text);
                if (pageIndexTemp <= 0 || pageIndexTemp > this.GvShow.PageCount)
                {
                    cotent = "你越位了，朋友！";
                }
            }
            catch
            {
                cotent = "请输入数字！";
            }
            return cotent;
        }
        public static void Show(System.Web.UI.Page page, string msg)
        {
            page.ClientScript.RegisterStartupScript(page.GetType(), "message", "<script language='javascript' defer>alert('" + msg.ToString() + "');</script>");
        }
    }
}
Tags: GridView  
发布:郑德才博客 | 分类:网络文摘 | 评论:0 | 浏览:
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