我有两个asp c＃页面，它们链接在一起，它由两个相互连接的表单组成。
示例我已完成第一页所以当我点击下一页（继续到下一页）时，我在第一页中输入的那些值将自动插入到sql数据库中，当我回答第二页时并提交它我需要更新数据库。
问题是第一页的insert语句运行并进入数据库，而第二页的update语句没有进入数据库。
任何想法如何解决这些问题？
来自第一页的代码
protected void Button1_Click(object sender, EventArgs e)
{
string selectedvalue = RadioButtonList2.SelectedValue.ToString();
string selectedvalue2 = RadioButtonList4.SelectedValue.ToString();
string selectedvalue3 = RadioButtonList6.SelectedValue.ToString();
string selectedvalue4 = RadioButtonList8.SelectedValue.ToString();
string selectedvalue5 = RadioButtonList10.SelectedValue.ToString();
string selectedvalue6 = RadioButtonList11.SelectedValue.ToString();
bool risk;
SqlCommand cmd = new SqlCommand();
SqlConnection sqlcon = new SqlConnection("Data Source=DBASE;Initial Catalog=TumorRegistry;User ID=sa");
try
{
if (RadioButtonList1.SelectedItem.Value == "rbfalse")
{
if (bool.TryParse("False" , out risk))
{
risk = false;
}
}
if (RadioButtonList1.SelectedItem.Value == "rbtrue")
{
if (bool.TryParse(RadioButtonList1.SelectedItem.Value , out risk))
{
risk = true;
}
}
if(RadioButtonList3.SelectedItem.Value=="rb3false")
{
if (bool.TryParse(RadioButtonList3.SelectedItem.Value , out risk))
{
risk = false;
}
}
if (RadioButtonList3.SelectedItem.Value == "rb3true")
{
if (bool.TryParse(RadioButtonList3.SelectedItem.Value , out risk))
{
risk = true;
}
}
if (RadioButtonList5.SelectedItem.Value == "rb4false")
{
if (bool.TryParse(RadioButtonList5.SelectedItem.Value , out risk))
{
risk = false;
}
}
if (RadioButtonList5.SelectedItem.Value == "rb4true")
{
if (bool.TryParse(RadioButtonList5.SelectedItem.Value , out risk))
{
risk = true;
}
}
if (RadioButtonList7.SelectedItem.Value == "rbfalse5")
{
if (bool.TryParse(RadioButtonList7.SelectedItem.Value , out risk))
{
risk = false;
}
}
if (RadioButtonList7.SelectedItem.Value == "rbtrue5")
{
if (bool.TryParse(RadioButtonList7.SelectedItem.Value , out risk))
{
risk = true;
}
}
if (RadioButtonList9.SelectedItem.Value == "rbfalse6")
{
if (bool.TryParse(RadioButtonList9.SelectedItem.Value , out risk))
{
risk = false;
}
}
if (RadioButtonList9.SelectedItem.Value == "rbtrue6")
{
if (bool.TryParse(RadioButtonList9.SelectedItem.Value , out risk))
{
risk = true;
}
}
if (selectedvalue.ToString() == "rbfalse")
{
selectedvalue = null;
}
if (selectedvalue2.ToString() == "rb3false")
{
selectedvalue2 = null;
}
if (selectedvalue3.ToString() == "rb4false")
{
selectedvalue3 = null;
}
if (selectedvalue4.ToString() == "rbfalse5")
{
selectedvalue4 = null;
}
if (selectedvalue5.ToString() == "rbfalse6")
{
selectedvalue6 = null;
}
Session["rdl1"] = RadioButtonList1.SelectedIndex;
Response.Redirect("WebForm1.aspx");
Session["rdl2"] = RadioButtonList2.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl3"] = RadioButtonList3.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl4"] = RadioButtonList4.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl5"] = RadioButtonList5.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl6"] = RadioButtonList6.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl7"] = RadioButtonList7.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl8"] = RadioButtonList8.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl9"] = RadioButtonList9.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl10"] = RadioButtonList10.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl11"] = RadioButtonList11.Text;
Response.Redirect("WebForm1.aspx");
}
catch (Exception ex)
{
Response.Write(ex.Message);
}
}
第二页代码
protected void Button2_Click(object sender, EventArgs e)
{
string selectedvalue = " ";
string selectedvalue2 = " ";
string selectedvalue3 = " ";
string selectedvalue4 = " ";
string selectedvalue5 = " ";
string selectedvalue6 = " ";
string rbl1 = " ";
string rbl2 = " ";
string rbl3 = " ";
string rbl4 = " ";
string rbl5 = " ";
//bool risk;
try
{
// session gained from previous page
if (Session["rdl1"] != null)
{
rbl1 = Session["rdl1"].ToString();
}
if (Session["rdl2"] != null)
{
selectedvalue = Session["rdl2"].ToString();
}
if (Session["rdl3"] != null)
{
rbl2 = Session["rdl3"].ToString();
}
if (Session["rdl4"] != null)
{
selectedvalue2 = Session["rdl4"].ToString();
}
if (Session["rdl5"] != null)
{
rbl3 = Session["rdl5"].ToString();
}
if (Session["rdl6"] != null)
{
selectedvalue3 = Session["rdl6"].ToString();
}
if (Session["rdl7"] != null)
{
rbl4 = Session["rdl7"].ToString();
}
if (Session["rdl8"] != null)
{
selectedvalue4 = Session["rdl8"].ToString();
}
if (Session["rdl9"] != null)
{
rbl5 = Session["rdl9"].ToString();
}
if (Session["rdl10"] != null)
{
selectedvalue5 = Session["rdl10"].ToString();
}
if (Session["rdl11"] != null)
{
selectedvalue6 = Session["rdl11"].ToString();
}
SqlConnection sqlcon = new SqlConnection("Data Source=DBASE;Initial Catalog=TumorRegistry;User ID=sa");
SqlCommand cmd = new SqlCommand();
cmd.Connection = sqlcon;
string SqlInsert = "Insert into tbTRcBase (HPN,ISH, Asthma, DM, OtherCo, HPNTreatment, ISHTreatment,AsthmaTreatment, DMTreatment, OtherCoTreatment,SecondHandSmoke) values ('" + rbl1.ToString() + "','" + rbl2.ToString() + "','" + rbl3.ToString() + "','" + rbl4.ToString() + "','" + rbl5.ToString() + "','" + selectedvalue.ToString() + "','" + selectedvalue2.ToString() + "','" + selectedvalue3.ToString() + "','" + selectedvalue4.ToString() + "','" + selectedvalue5.ToString() + "','" + selectedvalue6.ToString() + "')"; // this line inserts the vlaues of the first page when the button of submit in 2nd page is clicked
SqlDataAdapter DA = new SqlDataAdapter(SqlInsert, sqlcon);
DataTable dt = new DataTable();
DA.Fill(dt);
if (Radbl3.SelectedItem.Value != null && radbl4.SelectedItem.Value != null && CheckBoxList1.SelectedItem.Value != null && radbl5.SelectedItem != null && CheckBoxList2.SelectedItem.Value != null && radbl1.SelectedItem.Value != null)
{
sqlcon = new SqlConnection("Data Source=DBASE;Initial Catalog=TumorRegistry;User ID=sa");
string SqlUpdate = "Update tbTRcBase SET Smoker=Radbl3.SelectedItem.Text , StopSmoking = radbl4.SelectedItem.Text , Occupation = CheckBoxList1.SelectedItem.Text , CancerFamilyHistory = radbl5.SelectedItem.Text , FamilyWithCancer=CheckBoxList2.SelectedItem.Text , ParentWithCancer = radbl1.SelectedItem.Text WHERE Smoker=null, StopSmoking = null , Occupation = null, CancerFamilyHistory = null, FamilyWithCancer= null, ParentWithCancer = null "; // you see im having trouble with this line since this is the update the values are not inserted into the database
SqlDataAdapter DA1 = new SqlDataAdapter(SqlUpdate, sqlcon);
DataTable dt1 = new DataTable();
DA1.Update(dt1);
}
}
catch (Exception ex)
{
Response.Write(ex.Message);
}
}
答案 0 :(得分：0)
codes from the first page:
Session["rdl1"] = RadioButtonList1.SelectedIndex;
Response.Redirect("WebForm1.aspx");
Session["rdl2"] = RadioButtonList2.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl3"] = RadioButtonList3.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl4"] = RadioButtonList4.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl5"] = RadioButtonList5.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl6"] = RadioButtonList6.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl7"] = RadioButtonList7.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl8"] = RadioButtonList8.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl9"] = RadioButtonList9.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl10"] = RadioButtonList10.Text;
Response.Redirect("WebForm1.aspx");
Session["rdl11"] = RadioButtonList11.Text;
Response.Redirect("WebForm1.aspx");
This should be
** Session["rdl1"] = RadioButtonList1.SelectedIndex;
Session["rdl2"] = RadioButtonList2.Text;
Session["rdl3"] = RadioButtonList3.Text;
Session["rdl4"] = RadioButtonList4.Text;
Session["rdl5"] = RadioButtonList5.Text;
Session["rdl6"] = RadioButtonList6.Text;
Session["rdl7"] = RadioButtonList7.Text;
Session["rdl8"] = RadioButtonList8.Text;
Session["rdl9"] = RadioButtonList9.Text;
Session["rdl10"] = RadioButtonList10.Text;
Session["rdl11"] = RadioButtonList11.Text;
Response.Redirect("WebForm1.aspx");
**
As if first redirect happened then it will not save the other data in session.
尝试一下，并知道它是否能解决问题。