133 lines
3.9 KiB
C#
133 lines
3.9 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Web;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Data;
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using System.Text;
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using System.IO;
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namespace FineUI.Examples.grid
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{
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public partial class grid_editor_cell_databind : PageBase
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{
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protected void Page_Load(object sender, EventArgs e)
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{
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if (!IsPostBack)
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{
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BindDropDownList();
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BindGrid();
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}
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}
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#region BindGrid
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private void BindDropDownList()
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{
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List<string> majors = new List<string>();
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majors.Add("材料科学与工程系");
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majors.Add("化学系");
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majors.Add("数学系");
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majors.Add("物理系");
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majors.Add("自动化系");
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majors.Add("计算机科学与工程系");
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ddlMajor.DataSource = majors;
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ddlMajor.DataBind();
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}
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private void BindGrid()
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{
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DataTable table = GetSourceData();
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Grid1.DataSource = table;
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Grid1.DataBind();
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}
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#endregion
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#region Events
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protected void Button2_Click(object sender, EventArgs e)
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{
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Dictionary<int, Dictionary<string, object>> modifiedDict = Grid1.GetModifiedDict();
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for (int i = 0, count = Grid1.Rows.Count; i < count; i++)
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{
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if (modifiedDict.ContainsKey(i))
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{
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Dictionary<string, object> rowDict = modifiedDict[i];
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// 更新数据源
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DataTable table = GetSourceData();
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DataRow rowData = table.Rows[i];
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// 姓名
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if (rowDict.ContainsKey("Name"))
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{
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rowData["Name"] = rowDict["Name"];
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}
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// 性别
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if (rowDict.ContainsKey("Gender"))
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{
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rowData["Gender"] = rowDict["Gender"];
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}
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// 入学年份
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if (rowDict.ContainsKey("EntranceYear"))
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{
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rowData["EntranceYear"] = rowDict["EntranceYear"];
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}
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// 入学日期
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if (rowDict.ContainsKey("EntranceDate"))
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{
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rowData["EntranceDate"] = rowDict["EntranceDate"];
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}
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// 是否在校
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if (rowDict.ContainsKey("AtSchool"))
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{
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rowData["AtSchool"] = rowDict["AtSchool"];
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}
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// 所学专业
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if (rowDict.ContainsKey("Major"))
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{
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rowData["Major"] = rowDict["Major"];
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}
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}
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}
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labResult.Text = "用户修改的数据：" + Grid1.GetModifiedData().ToString(Newtonsoft.Json.Formatting.None);
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BindGrid();
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Alert.Show("数据保存成功！（表格数据已重新绑定）");
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}
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#endregion
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#region Data
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private static readonly string KEY_FOR_DATASOURCE_SESSION = "datatable_for_grid_editor_cell_renderfunction";
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// 模拟在服务器端保存数据
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// 特别注意：在真实的开发环境中，不要在Session放置大量数据，否则会严重影响服务器性能
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private DataTable GetSourceData()
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{
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if (Session[KEY_FOR_DATASOURCE_SESSION] == null)
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{
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Session[KEY_FOR_DATASOURCE_SESSION] = GetDataTable();
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}
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return (DataTable)Session[KEY_FOR_DATASOURCE_SESSION];
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}
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#endregion
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}
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}
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