ASP.NET Core 後台查詢頁面教學

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    <div class="card-header">
        ���i���@
    </div>
    <div class="card-body">
        <div class="row">
            <div class="col-auto">
                <label for="AnnoSubject" class="col-form-label">���i�D�D</label>
            </div>
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                <input type="text" id="AnnoSubject" class="form-control">
            </div>
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                <label for="AnnoStatus" class="col-form-label">���i���A</label>
            </div>
            <div class="col-auto">
                <select class="form-select" id="AnnoStatus">
                    <option value="1">���</option>
                    <option value="0">����</option>
                </select>
            </div>
        </div>
    </div>
    <div class="card-header">
        <button type="button" class="btn btn-primary">�d��</button>
    </div>
	<div class="card-body">
		<table class="table">
			<thead>
				<tr>
					<th>���i���</th>
					<th>���i�D�D</th>
					<th>���i���e</th>
					<th>���i���A</th>
				</tr>
			</thead>
			<tbody>
			</tbody>
		</table>
	</div>
</div>

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CREATE TABLE [dbo].[Announcement] (
[Pkey] int IDENTITY(1, 1) NOT NULL,
[AnnoDate] date NOT NULL,
[AnnoSubject] nvarchar(50) NOT NULL,
[AnnoContent] nvarchar(1000) NOT NULL,
[AnnoStatus] smallint NOT NULL,
PRIMARY KEY CLUSTERED ([Pkey] ASC)
 ON [PRIMARY]
)

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insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-01 00:00:00',N'Subject1',N'Content1',1)
insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-02 00:00:00',N'Subject2',N'Content2',1)
insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-03 00:00:00',N'Subject3',N'Content3',1)
insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-04 00:00:00',N'Subject4',N'Content4',1)
insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-05 00:00:00',N'Subject5',N'Content5',1)
insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-06 00:00:00',N'Subject6',N'Content6',1)
insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-07 00:00:00',N'Subject7',N'Content7',1)
insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-08 00:00:00',N'Subject8',N'Content8',1)
insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-09 00:00:00',N'Subject9',N'Content9',1)
insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-10 00:00:00',N'Subject10',N'Content10',1)
insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-11 00:00:00',N'Subject11',N'Content11',1)
insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-12 00:00:00',N'Subject12',N'Content12',1)
insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-13 00:00:00',N'Subject13',N'Content13',1)
insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-14 00:00:00',N'Subject14',N'Content14',1)
insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-15 00:00:00',N'Subject15',N'Content15',1)
insert into [dbo].[Announcement]([AnnoDate],[AnnoSubject],[AnnoContent],[AnnoStatus]) values ('2022-02-16 00:00:00',N'Subject16',N'Content16',1)

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builder.Services.AddControllers().AddJsonOptions(options =>
    {
        options.JsonSerializerOptions.PropertyNamingPolicy = null;
    });

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<div id="app">
    <div id="QueryPanel" class="card">
        <div class="card-header">
            ���i���@
        </div>
        <div class="card-body">
            <div class="row">
                <div class="col-auto">
                    <label for="queryFormAnnoSubject" class="col-form-label">���i�D�D</label>
                </div>
                <div class="col-auto">
                    <input type="text" id="queryFormAnnoSubject" class="form-control" v-model="queryForm.AnnoSubject">
                </div>
                <div class="col-auto">
                    <label for="queryFormAnnoStatus" class="col-form-label">���i���A</label>
                </div>
                <div class="col-auto">
                    <select class="form-select" id="queryFormAnnoStatus" v-model="queryForm.AnnoStatus">
                        <option value="1">���</option>
                        <option value="0">����</option>
                    </select>
                </div>
            </div>
        </div>
        <div class="card-header">
            <button type="button" class="btn btn-primary" v-on:click="Query()">�d��</button>
        </div>
		<div class="card-body">
			<table class="table">
				<thead>
					<tr>
						<th>���i���</th>
						<th>���i�D�D</th>
						<th>���i���e</th>
						<th>���i���A</th>
					</tr>
				</thead>
				<tbody>
					<tr v-for="(item, index) in grid.datas">
						<td>{{item.AnnoDate}}</td>
						<td>{{item.AnnoSubject}}</td>
						<td>{{item.AnnoContent}}</td>
						<td>{{item.AnnoStatusName}}</td>
					</tr>
				</tbody>
			</table>
		</div>
    </div>
</div>
@section scripts {
<script>
    const app = Vue.createApp({
    data() {
        return {
            queryForm:{
                AnnoSubject: ''
                , AnnoStatus: '1'
            }
            , grid:{
                datas:[]
            }
        }
    }
    , methods: {
        Query() {
            var self = this;
 
            // �զX������
            var postData = {};
            postData['AnnoSubject'] = self.queryForm.AnnoSubject;
            postData['AnnoStatus'] = self.queryForm.AnnoStatus;
			
            $.blockUI();
            // �ϥ� jQuery Ajax �ǰe�ܫ��
            $.ajax({
                url:'@Url.Content("~/AdmAnno/Query")',
                method:'POST',
                dataType:'json',
                data: { inModel: postData },
                success: function (datas) {
					$.unblockUI();
                    if (datas.ErrMsg) {
                        alert(datas.ErrMsg);
                        return;
                    }
                    // �j�w�C��
                    self.grid.datas = datas.Grid;
                },
                error: function (err) {
                    $.unblockUI();
                    alert(err.status + " " + err.statusText + '\n' + err.responseText);
                }
            });
 
        }
      }
    });
	const vm = app.mount('#app');
</script>
}

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/// <summary>
/// �d�ߤ��i
/// </summary>
/// <param name="inModel"></param>
/// <returns></returns>
public IActionResult Query(QueryIn inModel)
{
	QueryOut outModel = new QueryOut();
	outModel.Grid = new List<AnnoModel>();
 
	// ��Ʈw�s�u�r��
	string connStr = _configuration.GetConnectionString("SqlServer");
	using (var cn = new SqlConnection(connStr))
	{
		// �D�n�d�� SQL
		string sql = @"SELECT Pkey, CONVERT(varchar(12) , AnnoDate, 111 ) as AnnoDate, AnnoSubject, AnnoContent, AnnoStatus, Case AnnoStatus when '1' then '���' when '0' then '����' end As AnnoStatusName
						FROM Announcement 
						WHERE 1=1 ";
 
		if (!string.IsNullOrEmpty(inModel.AnnoSubject))
		{
			sql += " AND AnnoSubject LIKE @AnnoSubject ";
		}
		if (!string.IsNullOrEmpty(inModel.AnnoStatus))
		{
			sql += " AND AnnoStatus = @AnnoStatus ";
		}
		sql += " ORDER BY AnnoDate desc, AnnoStatus ";
		
		object param = new
		{
			AnnoSubject = "%" + inModel.AnnoSubject + "%",
			AnnoStatus = inModel.AnnoStatus
		};
		
		// �ϥ� Dapper �d��
		var list = cn.Query<AnnoModel>(sql, param);
		
		// ��X����
		foreach (var item in list)
		{
			outModel.Grid.Add(item);
		}
	}
	return Json(outModel);
}

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"ConnectionStrings": {
	"SqlServer": "Data Source=127.0.0.1;Initial Catalog=Teach;Persist Security Info=false;User ID=test;Password=test;"
}

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private readonly IConfiguration _configuration;
 
public AdmAnnoController(IConfiguration configuration)
{
	_configuration = configuration;
}

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�M��b AdmAnnoViewModel ��O�̭��A�[�J�b Controller �Ψ쪺 ViewModel�C

public class QueryIn
{
	public string AnnoSubject { get; set; }
	public string AnnoStatus { get; set; }
}
 
public class QueryOut
{
	public List<AnnoModel> Grid { get; set; }
}
 
public class AnnoModel
{
	public string Pkey { get; set; }
	public string AnnoDate { get; set; }
	public string AnnoSubject { get; set; }
	public string AnnoContent { get; set; }
	public string AnnoStatus { get; set; }
	public string AnnoStatusName { get; set; }
}

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const VuePagination = {
    data() {
        return {
            PerPage:'�C��'
            , PageTiems:'��'
            , Page:'��'
            , Times:'��'
            , Total:'�@'
            , TotalPage:'��'
        }
    }
    , props: ['pagination']
    , template: `
        <div style="text-align:right">
            <span v-for="pageNo in pagination.pages">
                <a v-if="pagination.pageNo != pageNo" v-on:click="gotoPage(pageNo)" style="cursor:pointer">
                    {{ pageNo }}
                </a>
                <label v-else>
                    {{ "[" + pageNo + "]" }}
                </label>&nbsp;
            </span>
            <span class="pager-nav">
                �i{{PerPage}}&nbsp;<input type="text" maxlength="3" style="width:35px;text-align:center;font-size:12px;" name="pageSize" :value="pagination.pageSize" v-on:change="onchange"/>
                &nbsp;{{PageTiems}}�A
                {{Total}} {{pagination.totalPage}} {{TotalPage}} {{pagination.totalCount}} {{PageTiems}}�j
                <button type="button" class="btn btn-secondary btn-sm pager-btn" style="margin-bottom: 5px;margin-right:5px;" v-on:click="gotoPage()">Q</button>
            </span>
        </div>`
    , methods: {
        gotoPage(pageNo) {
            var self = this;
            console.log(pageNo);
            // �O�_���ǤJ���w����
            if (pageNo !== undefined) {
                if (pageNo === '<') {
                    self.pagination.pageNo = parseInt(self.pagination.pageNo) - 1;
                } else if (pageNo === '>') {
                    self.pagination.pageNo = parseInt(self.pagination.pageNo) + 1;
                } else if (pageNo === '<<') {
                    self.pagination.pageNo = (Math.floor((parseInt(self.pagination.pageNo) - 10) / 10) * 10 + 1);
                } else if (pageNo === '>>') {
                    self.pagination.pageNo = (Math.floor((parseInt(self.pagination.pageNo) + 10) / 10) * 10 + 1);
                } else {
                    self.pagination.pageNo = parseInt(pageNo);
                }
            } else {
                self.pagination.pageNo = 1;
            }
            // ���w���Ƭ�0�A�۰��ܧ�1
            if (parseInt(self.pagination.pageNo) === 0 || self.IsNumeric(self.pagination.pageNo) === false) {
                self.pagination.pageNo = 1;
            }
            // ���w���Ƥj���`���ơA�۰��ܧ��`����
            self.pagination.pageNo =
                parseInt(self.pagination.pageNo) > parseInt(self.pagination.totalPage)
                    ? self.pagination.totalPage : self.pagination.pageNo;
            // ���w���Ƭ�0�A�۰��ܧ�10
            if (parseInt(self.pagination.pageSize) === 0 || self.IsNumeric(self.pagination.pageSize) === false) {
                self.pagination.pageSize = 10;
            }
            // call on even
            this.$emit('requery', { pagination: self.pagination });
        }
        , onchange(e) {
            var self = this;
            var re = /[^0-9]/;
            if (re.test(e.target.value) === false) {
                self.pagination[e.target.name] = parseInt(e.target.value);
            }
        }
        , IsNumeric(n) {
            return (n - 0) === n && n.toString().length > 0;
        }
    }
};

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�b \Views\Shared_Layout.cshtml �� JavaScript �W�[�ޥ� VuePagination.js �ɮסC

<script src="~/js/VuePagination.js"></script>

��U VuePagination.js ��

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<vue-pagination v-bind:pagination="grid.pagination" v-on:requery="reQuery"></vue-pagination>

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View �d�ߥ\��վ�

�ڭ̭��w�g�g�n�F�򥻪��d�� Query()�A�o�̦]��\��A�վ�@�U�A�üW�[�@�� reQuery() ��ɥi�H��s�I�s�C �վ�᪺��k�O�G

Query(reQuery) {
	var self = this;
 
	if (reQuery !== 'reQuery') {
		self.grid.pagination.pageNo = 1;
	}
 
	// �զX������
	var postData = {};
	postData['AnnoSubject'] = self.queryForm.AnnoSubject;
	postData['AnnoStatus'] = self.queryForm.AnnoStatus;
 
	// ���[����
	postData['pagination'] =  JSON.parse(JSON.stringify(self.grid.pagination));
 
	$.blockUI();
	// �ϥ� jQuery Ajax �ǰe�ܫ��
	$.ajax({
		url:'@Url.Content("~/AdmAnno/Query")',
		method:'POST',
		dataType:'json',
		data: { inModel: postData },
		success: function (datas) {
			$.unblockUI();
			if (datas.ErrMsg) {
				alert(datas.ErrMsg);
				return;
			}
			// �j�w�C��
			self.grid.datas = datas.Grid;
			self.grid.pagination = datas.pagination;
		},
		error: function (err) {
			$.unblockUI();
			alert(err.status + " " + err.statusText + '\n' + err.responseText);
		}
	});
 
}
// ���歫�d
, reQuery(emitData) {
	var self = this;
	if (emitData !== undefined) {
		self.grid.pagination = emitData.pagination;
	}
	self.Query('reQuery');
}

grid ��W�[��ݩ�

�b Vue3 �즳�ŧi�� data �ݩ� grid �n�W�[�@�Ӥ��ݩʡG

, pagination: {
	pages: [], pageNo: '1', pageSize: '10', totalCount: ''
}

Controller �d�ߥ\��վ�

�b Controller �쥻�]�g�n�F�򥻬d�ߥ\��A�o�̦]�W�[��d�߫�A�]�n�վ�@�U�y�k�A�i�ΥH�U�y�k��N�쥻��y�k�G

/// <summary>
/// �d�ߤ��i
/// </summary>
/// <param name="inModel"></param>
/// <returns></returns>
public IActionResult Query(QueryIn inModel)
{
	QueryOut outModel = new QueryOut();
	outModel.Grid = new List<AnnoModel>();
 
	// ��Ʈw�s�u�r��
	string connStr = _configuration.GetConnectionString("SqlServer");
	using (var cn = new SqlConnection(connStr))
	{
		// �D�n�d�� SQL
		string sql = @"SELECT Pkey, CONVERT(varchar(12) , AnnoDate, 111 ) as AnnoDate, AnnoSubject, AnnoContent, AnnoStatus, Case AnnoStatus when '1' then '���' when '0' then '����' end As AnnoStatusName
						FROM Announcement 
						WHERE 1=1 ";
 
		if (!string.IsNullOrEmpty(inModel.AnnoSubject))
		{
			sql += " AND AnnoSubject LIKE @AnnoSubject ";
		}
		if (!string.IsNullOrEmpty(inModel.AnnoStatus))
		{
			sql += " AND AnnoStatus = @AnnoStatus ";
		}
		sql += " ORDER BY AnnoDate desc, AnnoStatus ";
 
		object param = new
		{
			AnnoSubject = "%" + inModel.AnnoSubject + "%",
			AnnoStatus = inModel.AnnoStatus
		};
 
		// �����B�z
		int totalRowCount = 0;
		if (inModel.pagination.pageNo > 0)
		{
			string orderBy = "";
			// ���o�`����
			string totalRowSql = sql;
			if (totalRowSql.ToUpper().IndexOf("ORDER BY") > -1)
			{
				orderBy = totalRowSql.Substring(sql.ToUpper().LastIndexOf("ORDER BY"));
				totalRowSql = totalRowSql.Replace(orderBy, "");
			}
			totalRowSql = "SELECT COUNT(*) AS CNT FROM (" + totalRowSql + ") CNT_TABLE";
			var rowCnt = cn.Query(totalRowSql, param);
			foreach (var item in rowCnt)
			{
				totalRowCount = item.CNT;
			}
 
			// ���o���� SQL
			int startRow = ((inModel.pagination.pageNo - 1) * inModel.pagination.pageSize) + 1;
			int endRow = (startRow + inModel.pagination.pageSize) - 1;
			orderBy = sql.Substring(sql.ToString().ToUpper().LastIndexOf("ORDER BY"));
			sql = sql.Replace(orderBy, "");
			// �h�� Order by �O�W
			orderBy = orderBy.ToUpper().Replace("ORDER BY", "");
			StringBuilder newOrderBy = new StringBuilder();
			int index = 0;
			string[] orderBys = orderBy.Split(',');
			for (int i = 0; i < orderBys.Length; i++)
			{
				if (newOrderBy.Length > 0) { newOrderBy.Append(","); }
				string ob = orderBys[i];
				index = ob.IndexOf('.');
				if (index > -1)
				{
					newOrderBy.Append(ob.Substring(index + 1));
				}
				else
				{
					newOrderBy.Append(ob);
				}
			}
			newOrderBy.Insert(0, "ORDER BY ");
 
			sql = string.Concat(
				new object[] {
					"SELECT * FROM (SELECT *, ROW_NUMBER() OVER (", newOrderBy.ToString(), ") AS RCOUNT FROM (", sql, ") PAGE_SQL ) PAGE_SQL2 WHERE PAGE_SQL2.RCOUNT BETWEEN "
					, startRow, " AND ", endRow, " ", newOrderBy.ToString() });
		}
 
		// �ϥ� Dapper �d��
		var list = cn.Query<AnnoModel>(sql, param);
 
		// ��X����
		foreach (var item in list)
		{
			outModel.Grid.Add(item);
		}
 
		// �p�����
		outModel.pagination = this.PreparePage(inModel.pagination, totalRowCount);
	}
	return Json(outModel);
}
 
/// <summary>
/// �p�����
/// </summary>
/// <param name="model"></param>
/// <param name="TotalRowCount"></param>
/// <returns></returns>
public PaginationModel PreparePage(PaginationModel model, int TotalRowCount)
{
	List<string> pages = new List<string>();
	int pageStart = ((model.pageNo - 1) / 10) * 10;
	model.totalCount = TotalRowCount;
	model.totalPage =
			Convert.ToInt16(Math.Ceiling(
			 double.Parse(model.totalCount.ToString()) / double.Parse(model.pageSize.ToString())
			));
 
	if (model.pageNo > 10)
		pages.Add("<<");
	if (model.pageNo > 1)
		pages.Add("<");
	for (int i = 1; i <= 10; ++i)
	{
		if (pageStart + i > model.totalPage)
			break;
		pages.Add((pageStart + i).ToString());
	}
	if (model.pageNo < model.totalPage)
		pages.Add(">");
	if ((pageStart + 10) < model.totalPage)
		pages.Add(">>");
	model.pages = pages;
	return model;
}

�b SQL Server ��A�ڬO��ק� SQL �y�k�A��d��`��ơA�A�d�߻ݭn��d��ơA��C��ɡA��|��s�p��A�u�d�߻ݭn��ƽd��C

ViewModel �վ�

ViewModel ��N�O�W�[��A�o�̧ڴN��K�W�y�k�A�i�H��N��e�� Model�C

public class QueryIn
{
	public string AnnoSubject { get; set; }
	public string AnnoStatus { get; set; }
 
	public PaginationModel pagination { get; set; }
}
 
public class QueryOut
{
	public List<AnnoModel> Grid { get; set; }
	public PaginationModel pagination { get; set; }
}
 
public class AnnoModel
{
	public string Pkey { get; set; }
	public string AnnoDate { get; set; }
	public string AnnoSubject { get; set; }
	public string AnnoContent { get; set; }
	public string AnnoStatus { get; set; }
	public string AnnoStatusName { get; set; }
}
 
/// <summary>
// ���� Model
/// </summary>
public class PaginationModel
{
	public List<string> pages { get; set; }
	public int pageNo { get; set; }
	public int pageSize { get; set; }
	public int totalPage { get; set; }
	public int totalCount { get; set; }
}

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Last updated 2 years ago