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我正在尋找一些指導，能夠排序我當前的網格視圖（在代碼中使用LINQ填充）。 gridview駐留在「results.aspx」頁面上，並且運行許多不同的查詢以基於從此頁面傳遞的查詢字符串參數填充此gridview。gridview_sorting事件使用LINQ到實體C＃
可能有人可以看看我的代碼（如果不是特別「優雅」原諒我），並嘗試點我在正確的方向，以我怎麼可能實現這個排序？
results.aspx頁面只有幾個標籤來接受查詢字符串參數和一個名爲viewallGrid的gridview。
results.aspx.cs頁：
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 WebApplication1
{
public partial class Results : System.Web.UI.Page
{
public int _manufacturer { get; set; }
public int _decibel { get; set; }
public int _doortype { get; set; }
public int _glazing { get; set; }
public int _ref { get; set; }
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack) //FIRST TIME PAGE IS LOADED
{
hideLabels(decibelLabel, doortypeLabel, glazingLabel, mLabel, refLabel);
Initialdecision();
}
else
{
}
}
protected void Initialdecision()
{
var refResult = Request.QueryString["sf"];
int idResult = Convert.ToInt32(Request.QueryString["test"]);
string prodResult = Request.QueryString["prod"];
if (refResult == "ms")
{
mastersearchQuery();
}
if (refResult == "rs")
{
refsearchQuery();
}
if (refResult == "id")
{
testidsearchQuery(idResult);
}
if (refResult == "p")
{
productsearchQuery(prodResult);
}
}
protected void mastersearchQuery()
{
_manufacturer = Convert.ToInt32(Request.QueryString["m"]);
_decibel = Convert.ToInt32(Request.QueryString["db"]);
_doortype = Convert.ToInt32(Request.QueryString["dt"]);
_glazing = Convert.ToInt32(Request.QueryString["gl"]);
totalLabel.Text = Request.QueryString["total"];
decibelresultLabel.Text = _decibel.ToString();
doortyperesultLabel.Text = _doortype.ToString();
glazingresultLabel.Text = _glazing.ToString();
manufacturerresultLabel.Text = _manufacturer.ToString();
populatemanufacturerLabel();
populatedecibelLabel();
populatedoortypeLabel();
populateglazingLabel();
testdatanewEntities _result = new testdatanewEntities();
var resultQuery = (from t in _result.View3
where (t.dbRating >= _decibel && t.AllID == 1) &&
(t.doortypeID == _doortype || t.AllID == _doortype) &&
(t.GlazingID == _glazing || t.AllID == _glazing) &&
(t.ManufactureID == _manufacturer || t.AllID == _manufacturer)
orderby t.dbRating descending
select new { t.TestID, t.Core, t.Head, t.Threshold, t.MeetingStiles, t.GlazingsType, t.dbRating, t.Pic, t.PDF });
viewallGrid.DataSource = resultQuery;
viewallGrid.DataBind();
viewallGrid.UseAccessibleHeader = true;
viewallGrid.HeaderRow.TableSection = TableRowSection.TableHeader;
TableCellCollection cells = viewallGrid.HeaderRow.Cells;
//ID
cells[0].Attributes.Add("data-class", "expand");
//CORE
//HEAD
cells[2].Attributes.Add("data-hide", "phone,tablet");
//THRESHOLD
cells[3].Attributes.Add("data-hide", "phone,tablet");
//MEETING
cells[4].Attributes.Add("data-hide", "phone,tablet");
//GLAZING
cells[5].Attributes.Add("data-hide", "phone,tablet");
//dB
//SYSTEM PIC
cells[7].Attributes.Add("data-hide", "phone,tablet");
//PDF
cells[8].Attributes.Add("data-hide", "phone,tablet");
}
protected void productsearchQuery(string a)
{
refLabel.Text = "You have searched for test data including the product: NOR" + a.ToString();
refLabel.Visible = true;
testdatanewEntities _productquery = new testdatanewEntities();
var prodQuery = (from p in _productquery.View3
where p.Spare3.Contains(a)
orderby p.dbRating descending
select new { p.TestID, p.Core, p.Head, p.Threshold, p.MeetingStiles, p.GlazingsType, p.dbRating, p.Pic, p.PDF });
if (prodQuery.Count() > 0)
{
viewallGrid.DataSource = prodQuery;
viewallGrid.DataBind();
viewallGrid.UseAccessibleHeader = true;
viewallGrid.HeaderRow.TableSection = TableRowSection.TableHeader;
TableCellCollection cells = viewallGrid.HeaderRow.Cells;
//ID
cells[0].Attributes.Add("data-class", "expand");
//CORE
//HEAD
cells[2].Attributes.Add("data-hide", "phone,tablet");
//THRESHOLD
cells[3].Attributes.Add("data-hide", "phone,tablet");
//MEETING
cells[4].Attributes.Add("data-hide", "phone,tablet");
//GLAZING
cells[5].Attributes.Add("data-hide", "phone,tablet");
//dB
//SYSTEM PIC
cells[7].Attributes.Add("data-hide", "phone,tablet");
//PDF
cells[8].Attributes.Add("data-hide", "phone,tablet");
}
if (prodQuery.Count() == 0)
{
errorLabel.Text = "The Test ID " + a + " can not be found, please check the ID number and try again";
errorLabel.Visible = true;
}
}
protected void refsearchQuery()
{
var reftypeResult = Convert.ToInt32(Request.QueryString["ref"]);
refLabel.Text = "You have searched for report reference: C/" + reftypeResult.ToString();
refLabel.Visible = true;
testdatanewEntities _result = new testdatanewEntities();
var resultQuery = (from t in _result.View3
where t.testRef == reftypeResult
orderby t.dbRating descending
select new { t.TestID, t.Core, t.Head, t.Threshold, t.MeetingStiles, t.GlazingsType, t.dbRating, t.Pic, t.PDF });
if (resultQuery.Count() > 0)
{
viewallGrid.DataSource = resultQuery;
viewallGrid.DataBind();
viewallGrid.UseAccessibleHeader = true;
viewallGrid.HeaderRow.TableSection = TableRowSection.TableHeader;
TableCellCollection cells = viewallGrid.HeaderRow.Cells;
//ID
cells[0].Attributes.Add("data-class", "expand");
//CORE
//HEAD
cells[2].Attributes.Add("data-hide", "phone,tablet");
//THRESHOLD
cells[3].Attributes.Add("data-hide", "phone,tablet");
//MEETING
cells[4].Attributes.Add("data-hide", "phone,tablet");
//GLAZING
cells[5].Attributes.Add("data-hide", "phone,tablet");
//dB
//SYSTEM PIC
cells[7].Attributes.Add("data-hide", "phone,tablet");
//PDF
cells[8].Attributes.Add("data-hide", "phone,tablet");
}
if (resultQuery.Count() == 0)
{
errorLabel.Text = "The report ref " + reftypeResult + " can not be found, please check the reference and try again";
errorLabel.Visible = true;
}
}
protected void testidsearchQuery(int a)
{
refLabel.Text = "You have searched for the Test ID # " + a.ToString();
refLabel.Visible = true;
testdatanewEntities _result = new testdatanewEntities();
var resultQuery = (from t in _result.View3
where t.TestID == a
orderby t.dbRating descending
select new { t.TestID, t.Core, t.Head, t.Threshold, t.MeetingStiles, t.GlazingsType, t.dbRating, t.Pic, t.PDF });
if (resultQuery.Count() > 0)
{
viewallGrid.DataSource = resultQuery;
viewallGrid.DataBind();
viewallGrid.UseAccessibleHeader = true;
viewallGrid.HeaderRow.TableSection = TableRowSection.TableHeader;
TableCellCollection cells = viewallGrid.HeaderRow.Cells;
//ID
cells[0].Attributes.Add("data-class", "expand");
//CORE
//HEAD
cells[2].Attributes.Add("data-hide", "phone,tablet");
//THRESHOLD
cells[3].Attributes.Add("data-hide", "phone,tablet");
//MEETING
cells[4].Attributes.Add("data-hide", "phone,tablet");
//GLAZING
cells[5].Attributes.Add("data-hide", "phone,tablet");
//dB
//SYSTEM PIC
cells[7].Attributes.Add("data-hide", "phone,tablet");
//PDF
cells[8].Attributes.Add("data-hide", "phone,tablet");
}
if (resultQuery.Count() == 0)
{
errorLabel.Text = "The Test ID " + a + " can not be found, please check the ID number and try again";
errorLabel.Visible = true;
}
}
protected void hideLabels(Label a, Label b, Label c, Label d, Label e)
{
a.Visible = false;
b.Visible = false;
c.Visible = false;
d.Visible = false;
e.Visible = false;
}
protected void populatedecibelLabel()
{
decibelLabel.Visible = true;
testdatanewEntities _decquery = new testdatanewEntities();
var dquery = (from t in _decquery.View3
where t.dbRating == _decibel
select t.dbRating).FirstOrDefault();
if (_decibel == 1)
{
decibelLabel.Text = "All dBRw - ";
}
else
{
decibelLabel.Text = dquery.ToString() + "dBRw - ";
}
}
protected void populatemanufacturerLabel()
{
mLabel.Visible = true;
testdatanewEntities _manuquery = new testdatanewEntities();
var mquery = (from t in _manuquery.View3
where t.ManufactureID == _manufacturer
select t.manufacturerName).FirstOrDefault();
if (_manufacturer == 1)
{
mLabel.Text = "All manufacturers";
}
else
{
mLabel.Text = mquery.ToString();
}
}
protected void populatedoortypeLabel()
{
doortypeLabel.Visible = true;
testdatanewEntities _doorquery = new testdatanewEntities();
var doorquery = (from t in _doorquery.View3
where t.doortypeID == _doortype
select t.doortypeName).FirstOrDefault();
if (_doortype == 1)
{
doortypeLabel.Text = "All door types - ";
}
else
{
doortypeLabel.Text = doorquery.ToString() + " - ";
}
}
protected void populateglazingLabel()
{
glazingLabel.Visible = true;
testdatanewEntities _glazingquery = new testdatanewEntities();
var glazingquery = (from t in _glazingquery.View3
where (t.glazID == _glazing || t.AllID == _glazing)
select t.glazTypeName).FirstOrDefault();
if (_glazing == 1)
{
glazingLabel.Text = "All glazing - ";
}
else
{
glazingLabel.Text = glazingquery.ToString() + " - ";
}
}
//navigate through pages in result grid
protected void ResultGrid_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
viewallGrid.PageIndex = e.NewPageIndex;
Initialdecision();
viewallGrid.UseAccessibleHeader = true;
viewallGrid.HeaderRow.TableSection = TableRowSection.TableHeader;
TableCellCollection cells = viewallGrid.HeaderRow.Cells;
//ID
cells[0].Attributes.Add("data-class", "expand");
//CORE
//HEAD
cells[2].Attributes.Add("data-hide", "phone,tablet,desktop");
//THRESHOLD
cells[3].Attributes.Add("data-hide", "phone,tablet,desktop");
//MEETING
cells[4].Attributes.Add("data-hide", "phone,tablet,desktop");
//GLAZING
cells[5].Attributes.Add("data-hide", "phone,tablet,desktop");
//dB
//SYSTEM PIC
cells[7].Attributes.Add("data-hide", "phone,tablet,desktop");
//PDF
cells[8].Attributes.Add("data-hide", "phone,tablet,desktop");
}
protected void viewallGrid_Sorting(object sender, GridViewSortEventArgs e)
{
}
}
}