本文整理汇总了C#中DB.Open方法的典型用法代码示例。如果您正苦于以下问题：C# DB.Open方法的具体用法？C# DB.Open怎么用？C# DB.Open使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DB的用法示例。
在下文中一共展示了DB.Open方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Button1_Click
protected void Button1_Click(object sender, EventArgs e)
{
ErrorLabel.Text = "";
int i = 0;
using (SqlConnection conn = new DB().GetConnection())
{
string sql = "Update [ResourceFolders] set [email protected] where ID = @FolderID";
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.AddWithValue("@FolderName", FolderName.Text.Trim());
cmd.Parameters.AddWithValue("@FolderID", LabelFolderID.Text);
conn.Open();
i = cmd.ExecuteNonQuery();
conn.Close();
//将在Resources表中放在文件夹下的资源都更新文件夹名
{
sql = "Update Resources set [email protected] where FolderID = @FolderID";
cmd.CommandText = sql;
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
cmd.Dispose();
}
}
if (i == 1)
{
ErrorLabel.Text = "媒体信息更新成功！";
Response.Redirect(Server.HtmlEncode("Folder_Man.aspx"));
}
else
{
ErrorLabel.Text = "媒体信息更新失败，请重试！";
}
}示例2: Button1_Click
protected void Button1_Click(object sender, EventArgs e)
{
int i = 0;
string sqlCon = "";
using (SqlConnection conn = new DB().GetConnection())
{
SqlCommand cmd = conn.CreateCommand();
// 删除物理路径下的文件
{
sqlCon = "Select * from Resources where ID in (" + IDSLabel.Text + ")";
cmd.CommandText = sqlCon;
conn.Open();
SqlDataAdapter sda = new SqlDataAdapter();
sda.SelectCommand = cmd;
DataSet ds = new DataSet();
sda.Fill(ds, "FileName");
foreach (DataRow drow in ds.Tables["FileName"].Rows)
{
string FilePath = drow["FilePath"].ToString();
// 删除物理路径下的文件
System.IO.File.Delete(Server.MapPath(FilePath));
}
conn.Close();
}
{
sqlCon = "Delete from Article_Resource where ResourceID in (" + IDSLabel.Text + ")";
cmd.CommandText = sqlCon;
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
sqlCon = "Delete from Resources where ID in (" + IDSLabel.Text + ")";
cmd.CommandText = sqlCon;
conn.Open();
i = cmd.ExecuteNonQuery();
cmd.Dispose();
conn.Close();
}
}
if (i > 0)
{
ResultLabel.Text = "成功删除" + i + "个资源！";
ResultLabel.ForeColor = System.Drawing.Color.Green;
Response.Redirect("File_Recycle.aspx");
}
else
{
ResultLabel.Text = "操作失败，请重试！";
ResultLabel.ForeColor = System.Drawing.Color.Red;
}
}示例3: Button1_Click
protected void Button1_Click(object sender, EventArgs e)
{
int i = 0;
string sqlCon = "";
using (SqlConnection conn = new DB().GetConnection())
{
SqlCommand cmd = conn.CreateCommand();
sqlCon = "select * from ResourceFolders where FolderName = @FolderName";
cmd.CommandText = sqlCon;
cmd.Parameters.AddWithValue("@FolderName", FolderName.Text);
conn.Open();
SqlDataReader rd = cmd.ExecuteReader();
cmd.Dispose();
if (!rd.Read())
{
conn.Close();
//向resources插入一条记录操作
StringBuilder sb = new StringBuilder("Insert into ResourceFolders (FolderName,FolderType,UserID,CDT,Orders,Resources,ParentFolderID,IsSharedFolder,FoldGUID,Counts)");
sb.Append(" values(@FolderName,@FolderType,@UserID,@CDT,@Orders,@Resources,@ParentFolderID,@IsSharedFolder,@FoldGUID,@Counts)");
cmd = new SqlCommand(sb.ToString(), conn);
cmd.Parameters.AddWithValue("@FolderName", FolderName.Text);
cmd.Parameters.AddWithValue("@FolderType", "");
cmd.Parameters.AddWithValue("@UserID", Session["UserID"].ToString());
cmd.Parameters.AddWithValue("@CDT", DateTime.Now);
cmd.Parameters.AddWithValue("@Orders", 1);
cmd.Parameters.AddWithValue("@Resources", 0);
cmd.Parameters.AddWithValue("@ParentFolderID", 0);
cmd.Parameters.AddWithValue("@IsSharedFolder", 1);
FoldGUID.Text = Guid.NewGuid().ToString();
cmd.Parameters.AddWithValue("@FoldGUID", FoldGUID.Text);
cmd.Parameters.AddWithValue("@Counts", 0);
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
//插入成功
i = 1;
}
else
{
ErrorLabel.Text = "文件夹命名重复，请重新输入！";
}
rd.Close();
}
if (i == 1)
{
Response.Redirect(Server.HtmlEncode("Folder_Man.aspx"));
}
}示例4: CheckExtension
// 判断fileextension是否合法
protected bool CheckExtension(string extension)
{
bool result = false;
// 如果Dictionary的键值数<1，即没有元素，则先读取数据表
if (ResourceTypes.Keys.Count < 1)
{
using (SqlConnection conn = new DB().GetConnection())
{
SqlDataReader rd;
SqlCommand cmd = conn.CreateCommand();
cmd.CommandText = "select * from ResourceTypes";
conn.Open();
rd = cmd.ExecuteReader();
while (rd.Read())
{
ResourceTypes.Add(rd["Extension"].ToString(), rd["TypeName"].ToString());
}
rd.Close();
conn.Close();
}
}
// 判断是否含有指定的后缀名
if (ResourceTypes.ContainsKey(extension))
{
result = true;
ResourceTypeLabel.Text = ResourceTypes[extension];
}
return result;
}示例5: Page_Load
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
if (Session["RoleID"] == null || Session["UserID"] == null)
{
Util.ShowMessage("用户登录超时，请重新登录！", "Login2.aspx");
}
else
{
int RoleID = Convert.ToInt16(Session["RoleID"].ToString());
if (RoleID > 1)
{
Util.ShowMessage("对不起，你无权访问该页面！", "User_Center.aspx");
}
else
{
using (SqlConnection conn = new DB().GetConnection())
{
SqlCommand cmd = conn.CreateCommand();
cmd.CommandText = "select * from CatMenu order by Orders asc";
conn.Open();
SqlDataReader rd = cmd.ExecuteReader();
Cats.DataSource = rd;
Cats.DataValueField = "ID";
Cats.DataTextField = "CatMenuName";
Cats.DataBind();
rd.Close();
}
}
}
}
}示例6: Page_Load
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
int RoleID = Convert.ToInt16(Session["RoleID"].ToString());
if (Session["RoleID"] == null || Session["UserID"] == null)
{
Util.ShowMessage("用户登录超时，请重新登录！", "Login2.aspx");
}
else if (RoleID > 1)
{
Util.ShowMessage("您没有访问该页面的权限！", "Login2.aspx");
}
else
{
using (SqlConnection conn = new DB().GetConnection())
{
string sql = "select * from UserUtil_Notes order by ID desc";
SqlCommand cmd = new SqlCommand(sql, conn);
conn.Open();
SqlDataReader rd = cmd.ExecuteReader();
GridView1.DataSource = rd;
GridView1.DataBind();
rd.Close();
conn.Close();
}
ChangePages();
}
}
}示例7: Button1_Click
protected void Button1_Click(object sender, EventArgs e)
{
int i = 0;
using (SqlConnection conn = new DB().GetConnection())
{
SqlCommand cmd = conn.CreateCommand();
cmd.CommandText = "Delete from SubMenu where ID in (" + IDSLabel.Text + ") ";
conn.Open();
i = cmd.ExecuteNonQuery();
cmd.Dispose();
cmd.CommandText = "select * from SubMenu where ID in (" + IDSLabel.Text + ") order by ID desc";
SqlDataReader rd = cmd.ExecuteReader();
GridView1.DataSource = rd;
GridView1.DataBind();
rd.Close();
conn.Close();
}
if (i > 0)
{
ResultLabel.Text = "成功删除！";
ResultLabel.ForeColor = System.Drawing.Color.Green;
}
else
{
ResultLabel.Text = "操作失败，请重试！";
ResultLabel.ForeColor = System.Drawing.Color.Red;
}
}示例8: Button1_Click
protected void Button1_Click(object sender, EventArgs e)
{
string Count = "0";
using (SqlConnection conn = new DB().GetConnection())
{
SqlCommand cmd = conn.CreateCommand();
cmd.CommandText = "select count(*) as Count from Articles where [email protected]";
cmd.Parameters.AddWithValue("@SubID", IDSLabel.Text);
conn.Open();
SqlDataReader rd = cmd.ExecuteReader();
if (rd.Read())
{
Count = rd["Count"].ToString();
}
rd.Close();
if (Count == "0")
{
Del();
}
else
{
Response.Write("<script>alert(' 操作失败！！ \\n \\n 该栏目下仍存在文章，请删除该栏目下的文章后，才能对栏目进行删除!')</script>");
}
conn.Close();
}
}示例9: Button1_Click
protected void Button1_Click(object sender, EventArgs e)
{
int i = 0;
using (SqlConnection conn = new DB().GetConnection())
{
SqlCommand cmd = conn.CreateCommand();
cmd.CommandText = "Delete from Users where ID in (" + IDSLabel.Text + ") ";
SqlCommand cmd1 = conn.CreateCommand();
cmd1.CommandText = "Delete from Users_UserTags where UserID in (" + IDSLabel.Text + ") ";
conn.Open();
i = cmd.ExecuteNonQuery();
cmd1.ExecuteNonQuery();
cmd.Dispose();
cmd1.Dispose();
cmd.CommandText = "select * from Users where ID in (" + IDSLabel.Text + ") order by ID desc";
SqlDataReader rd = cmd.ExecuteReader();
GridView1.DataSource = rd;
GridView1.DataBind();
rd.Close();
conn.Close();
}
if (i > 0)
{
string deleteUserName = "个用户，分别为“" + DeleteUserName.Text + " ”" ;
Util.UserUtil_Notes("成功删除了", i, deleteUserName, UserName.Text, "User_Del.aspx", UserIP.Text);
ResultLabel.Text = "成功删除" + i + "个用户！";
ResultLabel.ForeColor = System.Drawing.Color.Green;
}
else
{
ResultLabel.Text = "操作失败，请重试！";
ResultLabel.ForeColor = System.Drawing.Color.Red;
}
}示例10: like1_Click
protected void like1_Click(object sender, EventArgs e)
{
if (!String.IsNullOrEmpty(Request.QueryString["ID"]))
{
using (SqlConnection conn = new DB().GetConnection())
{
SqlCommand cmd = conn.CreateCommand();
cmd.CommandText = "select * from [ArticleView_Like] where [UserIP] = @UserIP and [ArticleID][email protected] and [LikeDate][email protected] and [UserID] = @UserID";
cmd.Parameters.AddWithValue("@UserIP", USERIP);
cmd.Parameters.AddWithValue("@UserID", (User_id.Text == "" ? "Null" : User_id.Text));
cmd.Parameters.AddWithValue("@ArticleID", int.Parse(ArticleID.Text));
cmd.Parameters.AddWithValue("@LikeDate", DateTime.Now.ToString("yyyy-MM-dd"));
conn.Open();
SqlDataReader rd = cmd.ExecuteReader();
if (rd.Read()) { Response.Write("<script>alert('您今天已经点过赞了');</script>"); }
else
{
cmd.CommandText = "Insert into ArticleView_Like (ArticleID,UserIP,LikeDate,UserID)values(@ArticleID,@UserIP,@LikeDate,@UserID)";
rd.Close();
cmd.ExecuteNonQuery();
likeCount1.Text = (Convert.ToInt32(likeCount1.Text) + 1).ToString();
like1.Style["background-position"] = "right";
like1.Enabled = false;
LikeTimes.Text = (Convert.ToInt32(LikeTimes.Text) + 1).ToString();
}
rd.Close();
}
}
}示例11: Page_Load
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
int RoleID = Convert.ToInt16(Session["RoleID"].ToString());
if (Session["RoleID"] == null || Session["UserID"] == null)
{
Util.ShowMessage("用户登录超时，请重新登录！", "Login2.aspx");
}
else if (RoleID > 1)
{
Util.ShowMessage("您没有访问该页面的权限！", "Login2.aspx");
}
else
{
UserName.Focus();
using (SqlConnection conn = new DB().GetConnection())
{
string sql1 = "select * from Roles order by ID asc";
SqlCommand cmd1 = new SqlCommand(sql1, conn);
conn.Open();
SqlDataReader rd1 = cmd1.ExecuteReader();
Role.DataSource = rd1;
Role.DataTextField = "RoleName";
Role.DataValueField = "ID";
Role.DataBind();
rd1.Close();
}
}
}
}示例12: Add_Click
protected void Add_Click(object sender, EventArgs e)
{
//有输入文件名,在ResourceFolders插入一条记录
if (!String.IsNullOrEmpty(FolderName.Text))
{
string folderType = Request.QueryString["type"];
string UserID = Session["UserID"].ToString();
string guid = System.Guid.NewGuid().ToString();
using (SqlConnection conn = new DB().GetConnection())
{
StringBuilder sb = new StringBuilder("Insert into ResourceFolders(FolderName,FolderType,UserID,CDT,Orders,Resources,ParentFolderID,IsSharedFolder,FoldGUID)");
sb.Append(" values(@FolderName,@FolderType,@UserID,@CDT,@Orders,@Resources,@ParentFolderID,@IsSharedFolder,@FoldGUID)");
SqlCommand cmd = new SqlCommand(sb.ToString(),conn);
conn.Open();
cmd.Parameters.AddWithValue("@FolderName", FolderName.Text);
cmd.Parameters.AddWithValue("@FolderType",folderType);
cmd.Parameters.AddWithValue("@UserID",UserID);
cmd.Parameters.AddWithValue("@CDT",DateTime.Now);
cmd.Parameters.AddWithValue("@Orders",1);
cmd.Parameters.AddWithValue("@Resources",0);
cmd.Parameters.AddWithValue("@ParentFolderID",0);
cmd.Parameters.AddWithValue("@IsSharedFolder",0);
cmd.Parameters.AddWithValue("@FoldGUID",guid);
cmd.ExecuteNonQuery();
}
}
else
{
}
}示例13: MyInit
private void MyInit()
{
using (SqlConnection conn = new DB().GetConnection())
{
SqlCommand cmd = conn.CreateCommand();
SqlDataReader rd = null;
string CategoryID = "0";
cmd.CommandText = "select ID,Description,Subs,IsShow from Cats where CatName = @CatName";
cmd.Parameters.AddWithValue("@CatName", CategoryLabel.Text);
conn.Open();
rd = cmd.ExecuteReader();
int subs = 0;
if (rd.Read())
{
CategoryID = rd["ID"].ToString();
CategoryIDLabel.Text = CategoryID;
DescriptionLabel.Text = rd["Description"].ToString();
subs = Convert.ToInt16(rd["Subs"]);
}
rd.Close();
cmd.CommandText = "select ID,SubName,CatName from Subs where Valid = 1 and CatID = " + CategoryID + " Order By Orders Desc";
rd = cmd.ExecuteReader();
Repeater2.DataSource = rd;
Repeater2.DataBind();
rd.Close();
}
}示例14: Page_Load
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
if (Session["RoleID"] == null || Session["UserID"] == null)
{
Util.ShowMessage("用户登录超时，请重新登录！", "Login2.aspx");
}
else
{
LabelResourceID.Text = Request.QueryString["ID"];
using (SqlConnection conn = new DB().GetConnection())
{
string sql = "Select * from [Resources] where ID = @ResourceID";
SqlCommand cmd = new SqlCommand(sql, conn);
conn.Open();
cmd.Parameters.AddWithValue("@ResourceID", LabelResourceID.Text);
SqlDataReader rd = cmd.ExecuteReader();
if (rd.Read())
{
FileType.Text = rd["FileType"].ToString();
string resourcefolderID = rd["FolderID"].ToString();
if (FileType.Text.Equals("图片"))
{
Image1.ImageUrl = rd["FilePath"].ToString();
}
if (FileType.Text.Equals("压缩"))
{
Image1.ImageUrl = "upload/Resource_Preview/ys.png";
}
if (FileType.Text.Equals("文档"))
{
Image1.ImageUrl = "upload/Resource_Preview/wd.png";
}
if (FileType.Text.Equals("视频"))
{
Image1.ImageUrl = "upload/Resource_Preview/sp.png";
}
if (FileType.Text.Equals("音频"))
{
Image1.ImageUrl = "upload/Resource_Preview/yp.png";
}
if (FileType.Text.Equals("Flash"))
{
Image1.ImageUrl = "upload/Resource_Preview/fl.png";
}
if (FileType.Text.Equals("附件"))
{
Image1.ImageUrl = "upload/Resource_Preview/wd.png";
}
}
}
}
}
}示例15: iBoxTestCreateDbTest
public void iBoxTestCreateDbTest()
{
var path = "ibox";
if (!Directory.Exists(path))
Directory.CreateDirectory(path);
using (var server = new DB(path)){
var db = server.Open ();
Assert.IsTrue (db != null);
}
}