C# ode，其中T1.CardCode=@selected”，连接）； command.Parameters.AddWithValue（“@OpprId”，TextBox8.Text）； SqlDataReader theReader=command.Exec
ode，其中T1.CardCode=@selected”，连接）； command.Parameters.AddWithValue（“@OpprId”，TextBox8.Text）； SqlDataReader theReader=command.ExecuteReader（）； if（reader.Read（）） { this.TextBox8.Text=theReader[“OpprId”].ToString（）； } //command.Parameters.AddWithValue（“@CardCode”，选中）； //数据集ds=新数据集（）； //适配器。填充（CardCode）； connection.Close（）； //name2=id； } } 受保护的void DropDownList1\u SelectedIndexChanged（对象发送方，事件参数e） { DropDownList2.Items.Clear（）； 所选字符串=DropDownList1.SelectedItem.Value； //string selected2=DropDownList2.SelectedItem.Value； DropDownList2.Visible=true； //DropDownList2.SelectedItem.Value=“”； 加载选项1（）； //加载选项2（）； SqlConnection=newsqlconnection（“数据源=1.2.3.5；初始目录=asdasd；持久安全信息=True；用户ID=abc；密码=asdfgh”）； 使用（连接） { //SqlCommand theCommand=newsqlcommand（“从OOPR中选择CardCode、CardName、OpprId、CprCode、MaxSumLoc，其中CardCode=@CardCode”，connection）； //SqlCommand命令命令=新的SqlCommand命令（“选择T1.CardCode，T1.CardName，T2.OpprId，T1.CNTCTPRN，T2.CprCode，T3.CntctCode，T3.Name从T1上的OCRD T1左连接OOPR T2。CardCode=T2上的T2.CardCode左连接OCPR T3。CprCode=T3.CntctCode，其中T1.CardCode=@CardCode”，连接）； SqlCommand命令命令=新的SqlCommand（“从T1上的OCRD T1内部连接OCPR T3中选择T1.CardCode、T1.CardName、T3.CNTCTCCode、T3.Name，其中T3.CardCode=@CardCode”，连接）； connection.Open（）； command.Parameters.AddWithValue（“@CardCode”，选中）； command.CommandType=CommandType.Text； //DropDownList2.SelectedValue=DropDownList1.SelectedValue； SqlDataReader theReader=command.ExecuteReader（）； if（reader.Read（）） { //坐第一排 //theReader.Read（）； //设置文本框的值 this.TextBox1.Text=theReader[“CardCode”].ToString（）； this.TextBox2.Text=theReader[“CardName”].ToString（）； //this.TextBox5.Text=theReader[“CprCode”].ToString（）； //this.TextBox8.Text=theReader[“OpprId”].ToString（）； this.TextBox9.Text=theReader[“CntctCode”].ToString（）； //this.DropDownList2.SelectedValue=selected； //this.DropDownList2.Text=theReader[“CntctPrsn”].ToString（）； //this.DropDownList2.=已选择； this.DropDownList1.SelectedItem.Value=selected； //this.TextBox4.Text=theReader[“CntctCode”].ToString（）； //this.TextBox3=reader.IsDBNull（TextBox3Index）？null:reader.GetInt32（TextBox3Index） //GenreID=reader.IsDBNull（genreIDIndex）？null:reader.GetInt32（genreIDIndex） //this.TextBox4.Text=theReader.GetString（3）； //TextBox5.Text=theReader.GetString（4）； //TextBox6.Text=theReader.GetString（5）； //TextBox7.Text=theReader.GetString（6）； } connection.Close（）； } } 公共对象TextBox3Index{get；set；} //受保护的无效按钮1\u单击（对象发送者，事件参数e） // { //SqlConnection=newsqlconnection（）； //connection.ConnectionString=System.Configuration.ConfigurationManager.ConnectionString[“TestDatabaseConnectionString 2”]。ConnectionString； //connection.Open（）； //SqlCommand cmd=新的SqlCommand（）； //cmd.CommandText=“从OOPR中选择*”； //cmd.Connection=连接； //SqlDataAdapter da=新的SqlDataAdapter（）； //da.SelectCommand=cmd； //数据集ds=新数据集（）； //da.填充（ds，“OOPR”）； //SqlCommandBuilder cb=新的SqlCommandBuilder（da）； //DataRow drow=ds.Tables[“OOPR”].NewRow（）； //drow[“CardCode”]=TextBox1.Text； //drow[“CardName”]=TextBox2.Text； //drow[“OpprId”]=TextBox3.Text； //drow[“CprCode”]=TextBox4.Text； //drow[“MaxSumLoc”]=TextBox5.Text； //ds.Tables[“OOPR”].Rows.Add（drow）； //da.更新（ds，“OOPR”）； //字符串脚本=@“ //警报（'信息已成功保存……！！！）； // ;"; //Page.ClientScript.RegisterStartupScript（this.GetType（），“MyJScript 1”，脚本）； // } 受保护的无效按钮1\u单击（对象发送者，事件参数e） { SqlConnection=newsqlconnection（“数据源=1.2.3.5；初始目录=asdasd；持久安全信息=True；用户ID=abc；密码=asdfgh”）； 使用（连接） { //connection.Open（）； //SqlCommand insert=new SqlCommand（“插入OOPR（CardCode、CardName、OpprId、CprCode、MaxSumLoc）值（@TextBox1、@TextBox2、@TextBox8、@TextBox4、@TextBox5）”，连接）；/（“+TextBox1.Text+”、“+TextBox2.Text+”、“+DropDownList1.Text+”、“+TextBox4.Text+”），连接）； SqlCommand insert=新的SqlCommand（“插入OOPR（CardCode、CardName、OpprId）值（@TextBox1、@TextBox2、@TextBox8）”，连接）；/（“+TextBox1.Text+”C# ode，其中T1.CardCode=@selected”，连接）； command.Parameters.AddWithValue（“@OpprId”，TextBox8.Text）； SqlDataReader theReader=command.Exec,c#,asp.net,C#,Asp.net,ode，其中T1.CardCode=@selected”，连接）； command.Parameters.AddWithValue（“@OpprId”，TextBox8.Text）； SqlDataReader theReader=command.ExecuteReader（）； if（reader.Read（）） { this.TextBox8.Text=theReader[“OpprId”].ToString（）； } //command.Parameters.AddWithValue（“@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
namespace StackOver
{
// public string name2,name1;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
LoadOptions();
//D;opDownList2.Visible=false;
//]]]DropDownList2. = "0"
//LoadOptions1();
}
}
protected void LoadOptions()
{
DataTable CardCode = new DataTable();
string id, name, newName, name2;
SqlConnection connection = new SqlConnection("Data Source=1.2.3.5;Initial Catalog=asdasd;Persist Security Info=True;User ID=abc;Password=asdfgh");
using (connection)
{
SqlDataAdapter adapter = new SqlDataAdapter("SELECT T1.CardCode , T1.CardName from ocrd T1 ", connection);
adapter.Fill(CardCode);
if (CardCode.Rows.Count > 0)
{
for (int i = 0; i < CardCode.Rows.Count; i++)
{
id = CardCode.Rows[i]["CardCode"].ToString();
name = CardCode.Rows[i]["CardName"].ToString();
newName = id + " ---- " + name;
DropDownList1.Items.Add(new ListItem(newName, id));
//DropDownList2.DataSource = CardCode;
//DropDownList2.DataValueField = "CardCode";
//DropDownList2.DataTextField = "CntctPrsn";
//DropDownList2.DataBind();
}
}
// adapter.Fill(CardCode);
//DropDownList1.DataValueField = "CardCode";
//DropDownList1.DataTextField = "CardCode";
//DropDownList1.DataBind();
}
}
protected void LoadOptions1()
{
DataTable CardCode = new DataTable();
// string name2;
string id, name, newName;
string selected = DropDownList1.SelectedItem.Value;
SqlConnection connection = new SqlConnection("Data Source=1.2.3.5;Initial Catalog=asdasd;Persist Security Info=True;User ID=abc;Password=asdfgh");
using (connection)
{
//SqlCommand theCommand = new SqlCommand("SELECT T1.CardCode , T1.CardName, T2.OpprId, T1.CntctPrsn,T2.CprCode,T3.CntctCode,T3.Name FROM OCRD T1 left join OOPR T2 on T1.CardCode=T2.CardCode left join OCPR T3 on T2.CprCode=T3.CntctCode where T1.CardCode=@CardCode ", connection);
SqlCommand theCommand = new SqlCommand("Select Name,CntctCode from OCPR where CardCode=@CardCode ", connection);
// SqlDataAdapter adapter = new SqlDataAdapter("SELECT T1.CardCode , T1.CardName, T2.OpprId,T1.CntctPrsn, T2.CprCode,T2.MaxSumLoc FROM OCRD T1 left join OOPR T2 on T1.CardCode=T2.CardCode where T1.CardCode=@selected", connection);
// SqlDataAdapter adapter = new SqlDataAdapter("SELECT T1.CardCode , T1.CardName, T2.OpprId,T1.CntctPrsn, T2.CprCode,T2.MaxSumLoc FROM OCRD T1 left join OOPR T2 on T1.CardCode=T2.CardCode where T1.CardCode=@selected", connection);
theCommand.Parameters.AddWithValue("@CardCode", selected);
SqlDataAdapter adapter = new SqlDataAdapter(theCommand);
//DataSet ds = new DataSet();
adapter.Fill(CardCode);
//name2 = id;
if (CardCode.Rows.Count > 0)
{
for (int i = 0; i < CardCode.Rows.Count; i++)
{
string name2 = CardCode.Rows[i]["Name"].ToString();
string contcode = CardCode.Rows[i]["CntctCode"].ToString();
string newName2 = contcode + " ---- " + name2;
DropDownList2.Items.Add(new ListItem(newName2, contcode));
//DropDownList2.DataSource = CardCode;
//DropDownList2.DataValueField = "CardCode";
//DropDownList2.DataTextField = "CntctPrsn";
//DropDownList2.DataBind();
}
}
}
}
protected void LoadOptions2()
{
DataTable OprId = new DataTable();
string id, name, newName, name2;
string selected = DropDownList1.SelectedItem.Value;
SqlConnection connection = new SqlConnection("Data Source=1.2.3.5;Initial Catalog=asdasd;Persist Security Info=True;User ID=abc;Password=asdfgh");
using (connection)
{
connection.Open();
//SqlCommand theCommand = new SqlCommand("SELECT T1.CardCode , T1.CardName, T2.OpprId, T1.CntctPrsn,T2.CprCode,T3.CntctCode,T3.Name FROM OCRD T1 left join OOPR T2 on T1.CardCode=T2.CardCode left join OCPR T3 on T2.CprCode=T3.CntctCode where T1.CardCode=@CardCode ", connection);
//SqlCommand theCommand = new SqlCommand("select max(T1.OpprId)+1 from OOPR T1 ", connection);
SqlCommand theCommand = new SqlCommand("select max(T1.OpprId)+1 as OpprId from OOPR T1;", connection);
theCommand.CommandType = CommandType.Text;
// SqlDataAdapter adapter = new SqlDataAdapter("SELECT T1.CardCode , T1.CardName, T2.OpprId,T1.CntctPrsn, T2.CprCode,T2.MaxSumLoc FROM OCRD T1 left join OOPR T2 on T1.CardCode=T2.CardCode where T1.CardCode=@selected", connection);
theCommand.Parameters.AddWithValue("@OpprId", TextBox8.Text);
SqlDataReader theReader = theCommand.ExecuteReader();
if (theReader.Read())
{
this.TextBox8.Text = theReader["OpprId"].ToString();
}
//theCommand.Parameters.AddWithValue("@CardCode", selected);
//DataSet ds = new DataSet();
// adapter.Fill(CardCode);
connection.Close();
//name2 = id;
}
}
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList2.Items.Clear();
string selected = DropDownList1.SelectedItem.Value;
// string selected2 = DropDownList2.SelectedItem.Value;
DropDownList2.Visible = true;
// DropDownList2.SelectedItem.Value ="";
LoadOptions1();
//LoadOptions2();
SqlConnection connection = new SqlConnection("Data Source=1.2.3.5;Initial Catalog=asdasd;Persist Security Info=True;User ID=abc;Password=asdfgh");
using (connection)
{
// SqlCommand theCommand = new SqlCommand("SELECT CardCode, CardName, OpprId, CprCode,MaxSumLoc FROM OOPR WHERE CardCode = @CardCode", connection);
// SqlCommand theCommand = new SqlCommand("SELECT T1.CardCode , T1.CardName, T2.OpprId, T1.CntctPrsn,T2.CprCode,T3.CntctCode,T3.Name FROM OCRD T1 left join OOPR T2 on T1.CardCode=T2.CardCode left join OCPR T3 on T2.CprCode=T3.CntctCode where T1.CardCode=@CardCode ", connection);
SqlCommand theCommand = new SqlCommand("SELECT T1.CardCode , T1.CardName,T3.CntctCode,T3.Name FROM OCRD T1 inner join OCPR T3 on T1.CardCode=T3.CardCode where T3.CardCode=@CardCode ", connection);
connection.Open();
theCommand.Parameters.AddWithValue("@CardCode", selected);
theCommand.CommandType = CommandType.Text;
// DropDownList2.SelectedValue = DropDownList1.SelectedValue;
SqlDataReader theReader = theCommand.ExecuteReader();
if (theReader.Read())
{
// Get the first row
// theReader.Read();
// Set the text box values
this.TextBox1.Text = theReader["CardCode"].ToString();
this.TextBox2.Text = theReader["CardName"].ToString();
// this.TextBox5.Text = theReader["CprCode"].ToString();
// this.TextBox8.Text = theReader["OpprId"].ToString();
this.TextBox9.Text = theReader["CntctCode"].ToString();
//this.DropDownList2.SelectedValue = selected;
//this.DropDownList2.Text = theReader["CntctPrsn"].ToString();
// this.DropDownList2. = selected;
this.DropDownList1.SelectedItem.Value = selected;
// this.TextBox4.Text = theReader["CntctCode"].ToString();
// this.TextBox3 = reader.IsDBNull(TextBox3Index) ? null : reader.GetInt32(TextBox3Index)
// GenreID = reader.IsDBNull(genreIDIndex) ? null : reader.GetInt32(genreIDIndex)
// this.TextBox4.Text = theReader.GetString(3);
// TextBox5.Text = theReader.GetString(4);
// TextBox6.Text = theReader.GetString(5);
// TextBox7.Text = theReader.GetString(6);
}
connection.Close();
}
}
public object TextBox3Index { get; set; }
// protected void Button1_Click(object sender, EventArgs e)
// {
// SqlConnection connection = new SqlConnection();
// connection.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["TestDataBaseConnectionString2"].ConnectionString;
// connection.Open();
// SqlCommand cmd = new SqlCommand();
// cmd.CommandText = "select * from OOPR";
// cmd.Connection = connection;
// SqlDataAdapter da = new SqlDataAdapter();
// da.SelectCommand = cmd;
// DataSet ds = new DataSet();
// da.Fill(ds, " OOPR");
// SqlCommandBuilder cb = new SqlCommandBuilder(da);
// DataRow drow = ds.Tables["OOPR"].NewRow();
// drow["CardCode"] = TextBox1.Text;
// drow["CardName"] = TextBox2.Text;
// drow["OpprId"] = TextBox3.Text;
// drow["CprCode"] = TextBox4.Text;
// drow["MaxSumLoc"] = TextBox5.Text;
// ds.Tables["OOPR"].Rows.Add(drow);
// da.Update(ds, " OOPR ");
// string script = @"<script language=""javascript"">
// alert('Information have been Saved Successfully.......!!!!!.');
// </script>;";
// Page.ClientScript.RegisterStartupScript(this.GetType(), "myJScript1", script);
// }
protected void Button1_Click(object sender, EventArgs e)
{
SqlConnection connection = new SqlConnection("Data Source=1.2.3.5;Initial Catalog=asdasd;Persist Security Info=True;User ID=abc;Password=asdfgh");
using (connection)
{
// connection.Open();
// SqlCommand insert = new SqlCommand("Insert into OOPR(CardCode, CardName, OpprId, CprCode,MaxSumLoc) values (@TextBox1,@TextBox2,@TextBox8,@TextBox4,@TextBox5 )", connection); //('" + TextBox1.Text + "','" + TextBox2.Text + "','" + DropDownList1.Text + "','" + TextBox4.Text + "')", connection);
SqlCommand insert = new SqlCommand("Insert into OOPR(CardCode, CardName, OpprId) values (@TextBox1,@TextBox2,@TextBox8 )", connection); //('" + TextBox1.Text + "','" + TextBox2.Text + "','" + DropDownList1.Text + "','" + TextBox4.Text + "')", connection);
insert.Parameters.AddWithValue("@TextBox1", TextBox1.Text);
insert.Parameters.AddWithValue("@TextBox2", TextBox2.Text);
// insert.Parameters.AddWithValue("@TextBox3", TextBox3.Text);
// insert.Parameters.AddWithValue("@TextBox4", TextBox4.Text);
// insert.Parameters.AddWithValue("@TextBox5", TextBox5.Text);
insert.Parameters.AddWithValue("@TextBox8", TextBox8.Text);
connection.Open();
// connection.CommandType=CommandType.Text;
// connection.commandType=CommandType.Text;
// try
// {
insert.ExecuteNonQuery();
connection.Close();
// }
//catch
//{
// TextBox5.Text = "Error when saving on database";
// connection.Close();
//}
//TextBox1.Text="";
//TextBox2.Text = "";
//TextBox3.Text = "";
//TextBox4.Text="";
}
}
protected void Button2_Click(object sender, EventArgs e)
{
this.ClientScript.RegisterClientScriptBlock(this.GetType(), "Close", "window.close()", true);
// this.close();
}
protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList2.Items.Clear();
LoadOptions1();
string selected2 = DropDownList2.SelectedItem.Value;
DropDownList2.Visible = true;
// DropDownList2.SelectedItem.Value ="";
//LoadOptions2();
SqlConnection connection = new SqlConnection("Data Source=1.2.3.5;Initial Catalog=asdasd;Persist Security Info=True;User ID=abc;Password=asdfgh");
using (connection)
{
// SqlCommand theCommand = new SqlCommand("SELECT CardCode, CardName, OpprId, CprCode,MaxSumLoc FROM OOPR WHERE CardCode = @CardCode", connection);
// SqlCommand theCommand = new SqlCommand("SELECT T1.CardCode , T1.CardName, T2.OpprId, T1.CntctPrsn,T2.CprCode,T3.CntctCode,T3.Name FROM OCRD T1 left join OOPR T2 on T1.CardCode=T2.CardCode left join OCPR T3 on T2.CprCode=T3.CntctCode where T1.CardCode=@CardCode ", connection);
SqlCommand theCommand = new SqlCommand("SELECT T3.CntctCode,T3.Name FROM OCRD T1 inner join OCPR T3 on T1.CardCode=T3.CardCode where T3.CntctCode=@CntctCode", connection);
connection.Open();
theCommand.Parameters.AddWithValue("@CntctCode", selected2);
theCommand.CommandType = CommandType.Text;
// DropDownList2.SelectedValue = DropDownList1.SelectedValue;
SqlDataReader theReader = theCommand.ExecuteReader();
if (theReader.Read())
{
// Get the first row
// theReader.Read();
// Set the text box values
//this.TextBox1.Text = theReader["CardCode"].ToString();
//this.TextBox2.Text = theReader["CardName"].ToString();
// this.TextBox5.Text = theReader["CprCode"].ToString();
// this.TextBox3.Text = theReader["OpprId"].ToString();
this.TextBox9.Text = theReader["CntctCode"].ToString();
//this.DropDownList2.SelectedValue = selected;
//this.DropDownList2.Text = theReader["CntctPrsn"].ToString();
// this.DropDownList2. = selected;
this.DropDownList2.SelectedItem.Value = selected2;
// this.TextBox3 = reader.IsDBNull(TextBox3Index) ? null : reader.GetInt32(TextBox3Index)
// GenreID = reader.IsDBNull(genreIDIndex) ? null : reader.GetInt32(genreIDIndex)
// this.TextBox4.Text = theReader.GetString(3);
// TextBox5.Text = theReader.GetString(4);
// TextBox6.Text = theReader.GetString(5);
// TextBox7.Text = theReader.GetString(6);
}
connection.Close();
}
}
}
}
protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList2.Items.Clear(); //remove
LoadOptions1(); //remove
string selected2 = DropDownList2.SelectedItem.Value;
DropDownList2.Visible = true; //remove
//...