c# - 如何使用存储过程实现 Gridview 自定义分页？

Question

有人可以将我重定向到您自己的博客链接或任何其他链接，解释有关如何使用存储过程实现 gridview 自定义分页的完整教程吗？

我在谷歌搜索给了我 2006 年的旧文章。现在我正在使用 asp.net 3.5 和 c#。

Answer 1

.aspx 页面

    <asp:DropDownList ID="ddlSelector" AutoPostBack="true" runat="server" 
        onselectedindexchanged="ddlSelector_SelectedIndexChanged" >
        <asp:ListItem>Employee</asp:ListItem>
        <asp:ListItem>Customer</asp:ListItem>
    </asp:DropDownList>

    <asp:Button ID="btnSearch" runat="server" onclick="btnSearch_Click" Text="Search" />

    <br />
    <table>
        <tr>
            <td class="txtclmn">
                First Name:</td>
            <td>
                <asp:TextBox ID="txtFname" runat="server"></asp:TextBox>
            </td>
            <td class="txtclmn">
                Last Name:</td>
            <td>
                <asp:TextBox ID="txtLname" runat="server"></asp:TextBox>
            </td>
        </tr>
        <tr>
            <td class="txtclmn">
                Middle Name:</td>
            <td>
                <asp:TextBox ID="txtMname" runat="server"></asp:TextBox>
            </td>
            <td class="txtclmn">
                Phone Number:</td>
            <td>
                <asp:TextBox ID="txtPhone" runat="server"></asp:TextBox>
            </td>
        </tr>
        <tr>
            <td class="txtclmn">
                Email Address:</td>
            <td>
                <asp:TextBox ID="txtEmail" runat="server"></asp:TextBox>
            </td>
            <td class="txtclmn">
            </td>
            <td>
            </td>

        </tr>

    </table>
    <div runat="server" id="empCriteria">
    <table >
        <tr>
            <td class="txtclmn">
                <asp:Label ID="lblHdate" runat="server" Text="Hire Date:"></asp:Label>
            </td>
            <td>
                <asp:TextBox ID="txtHMonth" runat="server" MaxLength="2" CssClass="input2char"></asp:TextBox>
                <asp:Label ID="lblHdash1" runat="server" Text="-"></asp:Label>
                <asp:TextBox ID="txtHDay" runat="server" MaxLength="2" CssClass="input2char"></asp:TextBox>
                <asp:Label ID="lblHdash2" runat="server" Text="-"></asp:Label>
                <asp:TextBox ID="txtHYear" runat="server" MaxLength="4" CssClass="input4char"></asp:TextBox>
            </td>
            <td class="txtclmn">
                <asp:Label ID="lblBdate" runat="server" Text="Birth Date:"></asp:Label>
                </td>
            <td>
                <asp:TextBox ID="txtBMonth" runat="server"  MaxLength="2" CssClass="input2char"></asp:TextBox>
                <asp:Label ID="lblBdash1" runat="server" Text="-"></asp:Label>
                <asp:TextBox ID="txtBDay" runat="server"  MaxLength="2" CssClass="input2char"></asp:TextBox>
                <asp:Label ID="lblBdash2" runat="server" Text="-"></asp:Label>
                <asp:TextBox ID="txtBYear" runat="server" MaxLength="4" CssClass="input4char"></asp:TextBox>
            </td>
        </tr>
        <tr>
            <td class="txtclmn">
                <asp:Label ID="lblLoginId" runat="server" Text="Login ID:"></asp:Label>
            </td>
            <td>
                <asp:TextBox ID="txtLogin" runat="server"></asp:TextBox>
            </td>
            <td class="txtclmn">
                <asp:Label ID="lblJobTitle" runat="server" Text="Job Title:"></asp:Label></td>
            <td>
                <asp:TextBox ID="txtJobTitle" runat="server"></asp:TextBox>
            </td>
        </tr>
        <tr>
            <td class="txtclmn">
                <asp:Label ID="lblGender" runat="server" Text="Gender:"></asp:Label>
            </td>
            <td>
                <asp:DropDownList ID="ddlGender" runat="server" style="width: 73px">
                    <asp:ListItem Value="-1">-----------</asp:ListItem>
                    <asp:ListItem Value="M">Male</asp:ListItem>
                    <asp:ListItem Value="F">Female</asp:ListItem>
                </asp:DropDownList>
            </td>
            <td class="txtclmn">
                <asp:Label ID="lblMarStat" runat="server" Text="Marital Status:"></asp:Label>
            </td>
            <td>
                <asp:DropDownList ID="ddlMarStat" runat="server">
                    <asp:ListItem Value="-1">-----------</asp:ListItem>
                    <asp:ListItem Value="S">Single</asp:ListItem>
                    <asp:ListItem Value="M">Married</asp:ListItem>
                </asp:DropDownList>
            </td>
        </tr>
        <tr>
            <td class="txtclmn">
                <asp:Label ID="lblActive" runat="server" Text="Active:"></asp:Label>
            </td>
            <td>
                <asp:DropDownList ID="ddlActive" runat="server">
                    <asp:ListItem Value="-1">-----</asp:ListItem>
                    <asp:ListItem Value="1">Yes</asp:ListItem>
                    <asp:ListItem Value="0">No</asp:ListItem>
                </asp:DropDownList>
            </td>
            <td class="txtclmn">
               <asp:Label ID="lblSalary" runat="server" Text="Salaried:"></asp:Label></td>
            <td>
                <asp:DropDownList ID="ddlSalary" runat="server">
                    <asp:ListItem Value="-1">-----</asp:ListItem>
                    <asp:ListItem Value="1">Yes</asp:ListItem>
                    <asp:ListItem Value="0">No</asp:ListItem>
                </asp:DropDownList>
            </td>
        </tr>
    </table>
    </div>
    <br />
    <br />
    <asp:GridView ID="gdvCust" runat="server" AllowPaging="True"
        AutoGenerateColumns="False" 
        onpageindexchanging="gdvCust_PageIndexChanging">
        <Columns>
            <asp:BoundField DataField="ContactID" HeaderText="ContactID" ReadOnly="True" 
                SortExpression="ContactID" />
            <asp:BoundField DataField="Title" HeaderText="Title" ReadOnly="True" 
                SortExpression="Title" />
            <asp:BoundField DataField="FirstName" HeaderText="FirstName" ReadOnly="True" 
                SortExpression="FirstName" />
            <asp:BoundField DataField="MiddleName" HeaderText="MiddleName" ReadOnly="True" 
                SortExpression="MiddleName" />
            <asp:BoundField DataField="LastName" HeaderText="LastName" ReadOnly="True" 
                SortExpression="LastName" />
            <asp:BoundField DataField="Suffix" HeaderText="Suffix" ReadOnly="True" 
                SortExpression="Suffix" />
            <asp:BoundField DataField="EmailAddress" HeaderText="EmailAddress" 
                ReadOnly="True" SortExpression="EmailAddress" />
            <asp:BoundField DataField="Phone" HeaderText="Phone" ReadOnly="True" 
                SortExpression="Phone" />
            <asp:ButtonField ButtonType="Button" CommandName="Edit" Text="Edit" />
        </Columns>
    </asp:GridView>


    <br />
    <asp:GridView ID="gdvEmp" runat="server" AllowPaging="True"
        AutoGenerateColumns="False" 
        onpageindexchanging="gdvEmp_PageIndexChanging">
        <Columns>
            <asp:BoundField DataField="EmployeeID" HeaderText="EmployeeID" ReadOnly="True" 
                SortExpression="EmployeeID" />
            <asp:BoundField DataField="JobTitle" HeaderText="Job Title" ReadOnly="True" 
                SortExpression="Title" />
            <asp:BoundField DataField="FirstName" HeaderText="FirstName" ReadOnly="True" 
                SortExpression="FirstName" />
            <asp:BoundField DataField="MiddleName" HeaderText="MiddleName" ReadOnly="True" 
                SortExpression="MiddleName" />
            <asp:BoundField DataField="LastName" HeaderText="LastName" ReadOnly="True" 
                SortExpression="LastName" />
            <asp:BoundField DataField="Suffix" HeaderText="Suffix" ReadOnly="True" 
                SortExpression="Suffix" />
            <asp:BoundField DataField="EmailAddress" HeaderText="EmailAddress" 
                ReadOnly="True" SortExpression="EmailAddress" />
            <asp:BoundField DataField="Phone" HeaderText="Phone" ReadOnly="True" 
                SortExpression="Phone" />
            <asp:BoundField DataField="LoginID" HeaderText="LoginID" ReadOnly="True" 
                SortExpression="LoginID" />
            <asp:BoundField DataField="Title" HeaderText="Title" ReadOnly="True" 
                SortExpression="Title" />
            <asp:BoundField DataField="BirthDate" HeaderText="BirthDate" ReadOnly="True" 
                SortExpression="BirthDate" />
            <asp:BoundField DataField="MaritalStatus" HeaderText="MaritalStatus" ReadOnly="True" 
                SortExpression="MaritalStatus" />
            <asp:BoundField DataField="Gender" HeaderText="Gender" ReadOnly="True" 
                SortExpression="Gender" />
            <asp:BoundField DataField="HireDate" HeaderText="HireDate" 
                ReadOnly="True" SortExpression="HireDate" />
            <asp:CheckBoxField DataField="SalariedFlag" HeaderText="SalariedFlag" 
                ReadOnly="True" SortExpression="SalariedFlag" />
            <asp:CheckBoxField DataField="CurrentFlag" HeaderText="CurrentFlag" 
                ReadOnly="True" SortExpression="CurrentFlag" />
        </Columns>
    </asp:GridView>


</form>

代码隐藏

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;

namespace TestProj
{
public partial class Search : System.Web.UI.Page
{

    static IQueryable<Contact> _conResults;
    //static IQueryable<EmpContact> _empResults;
    protected void Page_Load(object sender, EventArgs e)
    {


    }


    protected void ddlSelector_SelectedIndexChanged(object sender, EventArgs e)
    {
        gdvCust.DataSource = null;
        gdvCust.DataBind();
        gdvEmp.DataSource = null;
        gdvEmp.DataBind();
        bool flag;
        if (ddlSelector.SelectedValue == "Employee")
            flag = true;
        else
        {               
            flag = false;
        }
        foreach( Control c in empCriteria.Controls)
        {
            c.Visible = flag;
        }
    }
    private IQueryable<Contact> CreateCustQuery()
    {
       TestDataClassDataContext dc = new TestDataClassDataContext();
        var predicate = PredicateBuilder.True<Contact>();
        var cust = from individual in dc.Individuals
                  join contact in dc.Contacts on individual.ContactID equals contact.ContactID
                  select contact;
        if (!string.IsNullOrEmpty(txtLname.Text))
            predicate = predicate.And( e => e.LastName.Contains(txtLname.Text));
        if (!string.IsNullOrEmpty(txtFname.Text))
            predicate = predicate.And(e => e.FirstName.Contains(txtFname.Text));
        if (!string.IsNullOrEmpty(txtMname.Text))
            predicate = predicate.And(e => e.MiddleName.Contains(txtMname.Text));
        if (Utility.IsValidPhone(txtPhone.Text))
            predicate = predicate.And(e => e.Phone.Contains(txtPhone.Text));
        if (Utility.IsValidEmailAddress(txtEmail.Text))
            predicate = predicate.And(e => e.EmailAddress.Contains(txtEmail.Text));

        var results = cust.Where(predicate);

        return results;
    }

    //private void CreateEmpQuery()
    //{
    //    TestDataClassDataContext dc = new TestDataClassDataContext();

    //    var emp = from c in dc.Contacts
    //              from e in dc.Employees
    //              where c.ContactID == e.ContactID
    //              select new 
    //              {
    //                  FirstName = c.FirstName,LastName = c.LastName, MiddleName =c.MiddleName, Phone = c.Phone,
    //                  EmailAddress = c.EmailAddress
    //              };

    //    var predicate = PredicateBuilder.True<>();
    //    if (!string.IsNullOrEmpty(txtLname.Text))
    //        predicate = predicate.And(e => e.LastName.Contains(txtLname.Text));
    //    if (!string.IsNullOrEmpty(txtFname.Text))
    //        predicate = predicate.And(e => e.FirstName.Contains(txtFname.Text));
    //    if (!string.IsNullOrEmpty(txtMname.Text))
    //        predicate = predicate.And(e => e.MiddleName.Contains(txtMname.Text));
    //    if (Utility.IsValidPhone(txtPhone.Text))
    //        predicate = predicate.And(e => e.Phone.Contains(txtPhone.Text));
    //    if (Utility.IsValidEmailAddress(txtEmail.Text))
    //        predicate = predicate.And(e => e.EmailAddress.Contains(txtEmail.Text));

    //    var results = emp.Where(predicate);


    //}

    private void GetCustResults()
    {
        _conResults = CreateCustQuery();
        gdvCust.DataSource = _conResults;
        gdvCust.DataBind();
    }

    //private void GetEmpResults()
    //{
    //    _empResults = CreateEmpQuery();
    //    gdvEmp.DataSource = _empResults;
    //    gdvEmp.DataBind();
    //}

    protected void gdvCust_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        gdvCust.PageIndex = e.NewPageIndex;
        gdvCust.DataSource = _conResults;
        gdvCust.DataBind();
    }
    //protected void gdvEmp_PageIndexChanging(object sender, GridViewPageEventArgs e)
    //{
    //    gdvCust.PageIndex = e.NewPageIndex;
    //    gdvEmp.DataSource = _empResults;
    //    gdvEmp.DataBind();
    //}

    protected void btnSearch_Click(object sender, EventArgs e)
    {
        if (ddlSelector.SelectedValue == "Customer")
            GetCustResults();
        //else
            //GetEmpResults();
    }



}
}

只是在我转到另一个我当时正在使用 linq 的项目之前完成了 cust 结果，但这可能会帮助您了解让 gridview 运行所需的内容。这是使用带有 AdventureWorks 的 linq 作为示例数据库

代码解释现在需要注意的是

    <asp:GridView ID="gdvCust" runat="server" AllowPaging="True"
        AutoGenerateColumns="False" 
        onpageindexchanging="gdvCust_PageIndexChanging">

以及 aspx 页面上的列和绑定字段，其中 DataField = 数据库中列的名称，而 Header 字段是 gridview 列顶部标记的内容。

现在就看后面的代码

private void GetCustResults()
{
    _conResults = CreateCustQuery();
    gdvCust.DataSource = _conResults;
    gdvCust.DataBind();
}
 //and    
protected void gdvCust_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
    gdvCust.PageIndex = e.NewPageIndex;
    gdvCust.DataSource = _conResults;
    gdvCust.DataBind();
}

他们从数据源和分页控件进行绑定。如果您需要更多解释，请发表评论

Answer 2

检查下面的代码。

CREATE PROCEDURE getDeals
  @StartIndex int,
  @PageSize int,
  @TotalCount int OutPut
as

select @TotalCount=count(1) from mstrDeals;
WITH CTE AS
(
  select top(@startIndex+@PageSize-1) ROW_NUMBER() OVER(ORDER BY creationdate) RowNumber,dealid,dealTitle from mstrDeals
)
select * from CTE where RowNumber between @startIndex and (@startIndex+@PageSize-1)

然后我们需要生成具有总行数、页面大小和当前页面的分页器，下面是在此处填充分页器的示例代码，分页器链接总数为 5，可以通过重置名为 totalLinkInPage 的局部变量来进一步自定义，并具有第一个和最后一个当当前页面是第一页或最后一页时，该按钮也会自动启用或禁用。

查看生成分页代码和绑定gridview代码（参考）：-

使用gridview中的存储过程在asp.net中自定义分页，分页效果很好

Answer 3

由于自 2006 年以来 SQL 的语法没有太大变化，因此没有太多需要更新的地方。在存储过程方面，您仍然会执行 ROW_Number() 调用。

 With table AS 
 ( SELECT ID, NAME, 
   ROW_NUMBER() OVER (order by Name) as RowNumber 
   FROM Customers ) 

select * 
from table 
Where RowNumber >= @RowStart and RowNumber <= @RowEnd end