Visual C# and Databases

大小: 4.56MB

文件類型: .zip

金幣: 2

下載: 0 次

發布日期: 2023-10-12
語言: C#
標簽: Visual??C#??Databases??Access??

高速下載

資源簡介

Visual C# and Databases is a tutorial that provides a detailed introduction to using Visual C# for accessing and maintaining databases. Topics covered include: database structure, database design, Visual C# project building, ADO .NET data objects, data bound controls, proper interface design, structured query language (SQL), and database reports. Visual C# and Databases is presented using a combination of over 700 pages of course notes and actual Visual C# examples. No previous experience working with databases is presumed. It is assumed, however, that users of the course are familiar with the Visual C# environment and the steps involved in building a Visual C# application.

資源截圖

小圖大圖

代碼片段和文件信息

using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Text;
using?System.Windows.Forms;

namespace?Example_1_1
{
??public?partial?class?frmMailingList?:?Form
??{
????public?frmMailingList（）
????{
??????InitializeComponent（）;
????}

????DateTime?lastNow;
????TimeSpan?elapsedTime;

????private?void?btnStart_Click（object?sender?EventArgs?e）
????{
??????//?Start?button?clicked
??????//?Disable?start?and?exit?buttons
??????//?Enabled?pause?button
??????btnStart.Enabled?=?false;
??????btnExit.Enabled?=?false;
??????btnPause.Enabled?=?true;
??????//?Establish?start?time?and?start?timer?control
??????lastNow?=?DateTime.Now;
??????timSeconds.Enabled?=?true;
??????//?Enable?mailing?list?frame
??????grpMail.Enabled?=?true;
??????txtName.Focus（）;
????}

????private?void?btnPause_Click（object?sender?EventArgs?e）
????{
??????//?Pause?button?clicked
??????//?Disable?pause?button
??????//?Enabled?start?and?exit?buttons
??????btnPause.Enabled?=?false;
??????btnStart.Enabled?=?true;
??????btnExit.Enabled?=?true;
??????//?Stop?timer
??????timSeconds.Enabled?=?false;
??????//?Disable?editing?frame
??????grpMail.Enabled?=?false;
????}

????private?void?btnExit_Click（object?sender?EventArgs?e）
????{
??????this.Close（）;
????}

????private?void?timSeconds_Tick（object?sender?EventArgs?e）
????{
??????//?Compute?elapsed?time?and?display
??????elapsedTime?+=?DateTime.Now?-?lastNow;
??????txtElapsedTime.Text?=?Convert.ToString（new?TimeSpan（elapsedTime.Hours?elapsedTime.Minutes?elapsedTime.Seconds））;
??????lastNow?=?DateTime.Now;
	??}

????private?void?txtInput_KeyPress（object?sender?KeyPressEventArgs?e）
????{
??????String?boxName?=?（（TextBox）?sender）.Name;
??????//?Check?for?return?key
??????if?（（int）?e.KeyChar?==?13）
??????{
????????switch?（boxName）
????????{
??????????case?“txtName“:
????????????txtAddress.Focus（）;
????????????break;
??????????case?“txtAddress“:
????????????txtCity.Focus（）;
????????????break;
??????????case?“txtCity“:
????????????txtState.Focus（）;
????????????break;
??????????case?“txtState“:
????????????txtZip.Focus（）;
????????????break;
??????????case?“txtZip“:
????????????btnAccept.Focus（）;
????????????break;
????????}
??????}
??????//?In?zip?text?box?make?sure?only?numbers?or?backspace?pressed
??????if?（boxName.Equals（“txtZip“））
??????{
????????if?（（e.KeyChar?>=?‘0‘?&&?e.KeyChar?<=?‘9‘）?||?（int）?e.KeyChar?==?8）
????????{
??????????e.Handled?=?false;
????????}
????????else
????????{
??????????e.Handled?=?true;
????????}
??????}
????}

????private?void?btnAccept_Click（object?sender?EventArgs?e）
????{
??????string?s;
??????//?Accept?button?clicked?-?form?label?and?output?in?message?box
??????//?Make?sure?each?text?box?has?entry
??????if?（txtName.Text.Equals（““）?||?txtAddress.Text.Equals（““）?||?txtCity.Text.Equals（““）?||?txtState.Text.Equals（““）?||?txtZip.Text.Equals

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2008-06-12?03:23??VCS200XDB\Code\
?????目錄???????????0??2008-06-12?03:22??VCS200XDB\Code\Class?1\
?????目錄???????????0??2008-06-12?03:22??VCS200XDB\Code\Class?1\Example?1-1\
?????文件????????3660??2006-12-28?23:12??VCS200XDB\Code\Class?1\Example?1-1\Example?1-1.cs
?????文件????????3296??2006-12-28?23:11??VCS200XDB\Code\Class?1\Example?1-1\Example?1-1.csproj
?????文件???????11402??2006-12-28?23:12??VCS200XDB\Code\Class?1\Example?1-1\Example?1-1.Designer.cs
?????文件????????6186??2006-12-28?09:16??VCS200XDB\Code\Class?1\Example?1-1\Example?1-1.resx
?????文件?????????910??2006-12-28?04:47??VCS200XDB\Code\Class?1\Example?1-1\Example?1-1.sln
?????文件???????12288??2008-03-03?20:54??VCS200XDB\Code\Class?1\Example?1-1\Example?1-1.suo
?????文件?????????435??2006-12-28?23:12??VCS200XDB\Code\Class?1\Example?1-1\Program.cs
?????目錄???????????0??2008-06-12?03:22??VCS200XDB\Code\Class?1\Example?1-1\Properties\
?????文件????????1270??2006-12-28?23:11??VCS200XDB\Code\Class?1\Example?1-1\Properties\AssemblyInfo.cs
?????文件????????2847??2006-12-28?23:11??VCS200XDB\Code\Class?1\Example?1-1\Properties\Resources.Designer.cs
?????文件????????5612??2006-12-28?04:15??VCS200XDB\Code\Class?1\Example?1-1\Properties\Resources.resx
?????文件????????1090??2006-12-28?23:11??VCS200XDB\Code\Class?1\Example?1-1\Properties\Settings.Designer.cs
?????文件?????????249??2006-12-28?04:15??VCS200XDB\Code\Class?1\Example?1-1\Properties\Settings.settings
?????目錄???????????0??2008-06-12?03:22??VCS200XDB\Code\Class?10\
?????目錄???????????0??2008-06-13?20:19??VCS200XDB\Code\Class?10\Example?10-1\
?????目錄???????????0??2008-06-12?03:22??VCS200XDB\Code\Class?10\Example?10-1\Properties\
?????目錄???????????0??2008-06-13?20:20??VCS200XDB\Code\Class?10\Example?10-2\
?????目錄???????????0??2008-06-12?03:22??VCS200XDB\Code\Class?10\Example?10-2\Inventory?Photos\
?????目錄???????????0??2008-06-12?03:22??VCS200XDB\Code\Class?10\Example?10-2\Properties\
?????目錄???????????0??2008-06-13?19:57??VCS200XDB\Code\Class?10\Example?10-3\
?????目錄???????????0??2008-06-12?03:22??VCS200XDB\Code\Class?10\Example?10-3\HelpFile\
?????目錄???????????0??2008-06-12?03:22??VCS200XDB\Code\Class?10\Example?10-3\Properties\
?????目錄???????????0??2008-06-12?03:22??VCS200XDB\Code\Class?10\Setup?10-3\
?????目錄???????????0??2008-06-12?03:22??VCS200XDB\Code\Class?10\Setup?10-3\Debug\
?????目錄???????????0??2008-06-12?03:22??VCS200XDB\Code\Class?10\Setup?10-3\Release\
?????目錄???????????0??2008-06-12?03:22??VCS200XDB\Code\Class?11\
?????目錄???????????0??2008-06-12?03:22??VCS200XDB\Code\Class?11\Example?11-1\
?????目錄???????????0??2008-06-12?03:22??VCS200XDB\Code\Class?11\Example?11-1\Properties\
............此處省略400個文件信息

91av视频/亚洲h视频/操亚洲美女/外国一级黄色毛片 - 国产三级三级三级三级

Visual C# and Databases

資源簡介

資源截圖

代碼片段和文件信息

評論

相關資源