Asp.Net 簡單考題管理系統

 

default.aspx.cs

using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; using System.Data.SqlClient; using System.Data.OleDb; using System.IO; namespace Web0531 { public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { db.dataBind(ListView1, "select * from exam order by id"); try { int PageSize = (int)Session["PageSize"]; // 保證從修改頁面能返回到原來的頁面 int StartRowIndex = (int)Session["StartRowIndex"]; ((DataPager)ListView1.FindControl("DataPager1")).SetPageProperties(StartRowIndex, PageSize, true); } catch { } } } // 數據項綁定後，將正確答案的選項“藍色、加粗”顯示 protected void ListView1_ItemDataBound(object sender, ListViewItemEventArgs e) { try { Label lb = (Label)e.Item.FindControl("answerLabel"); // 取答案 string ans = lb.Text.Trim() + "Label"; // 如果答案是a;b;c;d其中之一 Label lbans = (Label)e.Item.FindControl(ans); // 沒有答案時會出錯 lbans.CssClass = "bb"; // 設置答案選項的樣式 } catch { } } // 翻頁時執行 protected void ListView1_PagePropertiesChanged(object sender, EventArgs e) { int PageSize = ((DataPager)ListView1.FindControl("DataPager1")).PageSize; // 每頁記錄數 int StartRowIndex = ((DataPager)ListView1.FindControl("DataPager1")).StartRowIndex; // 首行的索引值 int TotalRowCount = ((DataPager)ListView1.FindControl("DataPager1")).TotalRowCount; // 總記錄數 //Response.Write("PageSize = " + PageSize.ToString() + " ; StartRowIndex = " + StartRowIndex.ToString() + " ; TotalRowcount = " + TotalRowCount.ToString() + ";"); ((DataPager)ListView1.FindControl("DataPager1")).SetPageProperties(StartRowIndex, PageSize, false); db.dataBind(ListView1, "select * from exam order by id"); // 重新綁定數據 Session["StartRowIndex"] = StartRowIndex; // 記錄信息到 Session，用於從修改頁面返回時能回到原來的頁面 Session["PageSize"] = PageSize; } // 刪除記錄 protected void ListView1_ItemDeleting(object sender, ListViewDeleteEventArgs e) { string id = ((Label)ListView1.Items[e.ItemIndex].FindControl("idLabel")).Text; // 要刪記錄的 id 號 OleDbConnection cn = db.AccessConnection(); cn.Open(); OleDbCommand cmd = new OleDbCommand("delete from exam where id=" + id, cn); cmd.ExecuteNonQuery(); cn.Close(); cmd.Dispose(); int PageSize = ((DataPager)ListView1.FindControl("DataPager1")).PageSize; // 若刪除的是最後頁面中的記錄，可能需要調整 int StartRowIndex = ((DataPager)ListView1.FindControl("DataPager1")).StartRowIndex; int TotalRowCount = ((DataPager)ListView1.FindControl("DataPager1")).TotalRowCount; if (TotalRowCount < 3) // 若記錄要刪除完，回覆原來的所有記錄 { File.Copy(Server.MapPath("App_Data/peixun.bak"), Server.MapPath("App_Data/peixun.mdb"), true); } else { if (StartRowIndex == TotalRowCount - 1) // 若最後頁的記錄刪完 { StartRowIndex -= PageSize; // 要切回到原最後頁的前一頁，DataPager本身不會處理 ((DataPager)ListView1.FindControl("DataPager1")).SetPageProperties(StartRowIndex, PageSize, false); Session["StartRowIndex"] = StartRowIndex; Session["PageSize"] = PageSize; } } db.dataBind(ListView1, "select * from exam order by id"); // 重新綁定數據 } } }

 

modify.aspx.cs

using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; using System.Data.OleDb; namespace Web0531 { public partial class modify : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { string urlId = Request.QueryString["id"]; // 要修改記錄的 id 號 //if (string.IsNullOrEmpty(urlId)) urlId = "4"; // 測試用 OleDbConnection conn = db.AccessConnection(); conn.Open(); OleDbCommand cmd = new OleDbCommand("select * from exam where id=" + urlId, conn); OleDbDataReader dr = cmd.ExecuteReader(CommandBehavior.CloseConnection); if (dr.Read()) { id.Value = dr["id"].ToString(); // 把原來的題目信息顯示出來 tm.Text = dr["question"].ToString(); a.Text = dr["a"].ToString(); b.Text = dr["b"].ToString(); c.Text = dr["c"].ToString(); d.Text = dr["d"].ToString(); int i = dr["answer"].ToString()[0] - 'A'; // 僅處理單選 if(i>=0 && i<=3) da.Items[i].Selected = true; } conn.Close(); dr.Close(); } } // 更新記錄 protected void Button1_Click(object sender, EventArgs e) { string rda = null; for (int i = 0; i < da.Items.Count; ++i) { if (da.Items[i].Selected) { rda = Convert.ToString((char)('A' + i)); // 答案，僅處理單選 break; } } if (string.IsNullOrEmpty(rda)) rda = " "; string sql = "update exam set question='" + tm.Text.Replace("'", "''") + "',a='" + a.Text.Replace("'", "''") + "',b='" + b.Text.Replace("'", "''") + "',c='" + c.Text.Replace("'", "''") + "',d='" + d.Text.Replace("'", "''") + "',answer='" + rda + "' where id=" + id.Value; OleDbConnection conn = db.AccessConnection(); conn.Open(); OleDbCommand cmd = new OleDbCommand(sql, conn); cmd.ExecuteNonQuery(); // 執行更新 conn.Close(); Response.Redirect("default.aspx"); // 返回到原來的頁面 } } }

 

new.aspx.cs

using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; using System.Data.OleDb; namespace Web0531 { public partial class _new : System.Web.UI.Page // 插入新的考試題目 { // 插入新記錄 protected void Button1_Click(object sender, EventArgs e) { string rda = null; for (int i = 0; i < da.Items.Count; ++i) // 選擇的答案 { if (da.Items[i].Selected) { rda = Convert.ToString((char)('A' + i)); // 轉換成字符串 break; // 僅考慮單選 } } if (string.IsNullOrEmpty(rda)) rda = " "; string sql = "insert into exam(question,a,b,c,d,answer) values ('" + tm.Text.Replace("'", "''") + "','" + a.Text.Replace("'", "''") + "','" + b.Text.Replace("'", "''") + "','" + c.Text.Replace("'", "''") + "','" + d.Text.Replace("'", "''") + "','" + rda + "')"; OleDbConnection conn = db.AccessConnection(); conn.Open(); OleDbCommand cmd = new OleDbCommand(sql, conn); // 插入到數據庫 cmd.ExecuteNonQuery(); conn.Close(); Response.Redirect("default.aspx"); // 返回到原來所在的頁面，要看剛插入的題目，可單擊“最後一頁”按鈕 } } }

 

完整項目下載：

http://download.csdn.net/source/2417259