如何动态生成文本框和收集用户输入的数据？ [英] How to dynamically generate textbox and collect data entered by user?
本文介绍了如何动态生成文本框和收集用户输入的数据？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我会在VB AP preciate答案或C＃
I will appreciate answers in VB or C#
我们使用一个数据库来创建动态的项目数据收集形式
we use a database to create Data Collection forms with dynamic items
我用这个code生成数据库从表标签和文本框（当用户点击按钮负荷CRF）
I used this code to generate labels and textboxes from a table in database (when the user hits the button "load CRF")
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim CRFgrid As New GridView
CRFgrid.DataSource = CRFds
CRFgrid.DataBind()
Dim ItemCount As Integer = CRFgrid.Rows.Count
Session("Itemcount") = CRFgrid.Rows.Count
For I = 0 To (ItemCount - 1)
Dim itemname As String = CRFgrid.Rows(0 + I).Cells(1).Text.ToString
Session("Item") = "Item" + (I + 1).ToString
Dim ItemNamelabel As New Label
Dim ItemNameBox As New TextBox
ItemNamelabel.ID = "L" + (I + 1).ToString
Session("FU" + I.ToString) = ItemNamelabel.ID.ToString
ItemNameBox.ID = "T" + (I + 1).ToString
ItemNamelabel.Text = "<br />" + (Session("Item").ToString) + " " + itemname + " " + "<br />"
Me.Form.Controls.Add(ItemNamelabel)
Me.Form.Controls.Add(ItemNameBox)
Next
End Sub
在加载数据收集表格时，页面看起来像这样
when the data collection form is loaded, the page looks like this
和查看页面源代码显示
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>
</title></head>
<body>
<form method="post" action="Default.aspx" id="form1">
<div class="aspNetHidden">
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUKLTI0NTA5MDI3NGRkUb8sl0uZpLbvUN/GSmHgjYxS9xqGR7rmcMBR3Ufhz4w=" />
</div>
<input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEWCQLf7PXOCQKM54rGBgK7q7GGCALF9vKRBQLs7+btDALs7+LtDALs797tDALs79rtDALs79btDDHrb+Vhkcph8brtCJP9//5IH57FFoImey2PApARP+k1" />
<input type="submit" name="Button1" value="LoadCRF" id="Button1" style="width:85px;" />
<br />
<br />
<input type="submit" name="Button2" value="InsertData" id="Button2" style="width:85px;" />
<br />
<br />
MRN
<input name="MRNtxt" type="text" id="MRNtxt" />
<br />
<br />
<span id="L1"><br />Item1 Diagnosis <br /></span><input name="T1" type="text" id="T1" /><span id="L2"><br />Item2 Treatment Protocol <br /></span><input name="T2" type="text" id="T2" /><span id="L3"><br />Item3 Initial CSF <br /></span><input name="T3" type="text" id="T3" /><span id="L4"><br />Item4 Location <br /></span><input name="T4" type="text" id="T4" /><span id="L5"><br />Item5 Consultant <br /></span><input name="T5" type="text" id="T5" /></form>
一旦用户填写表格，然后点击插入，我想用这个code，以输入的文本保存到其他TABEL在数据库中。这是行不通的。 u能告诉我在哪里我的错误是什么？
once the user fills the form and click insert, i want to save entered text into a other tabel in the database using this code. it does not work. can u tell me where my mistake is?
Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim mydb As New OleDbConnection
mydb =
New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source= |datadirectory|openclinica.mdb;Persist Security Info=True")
mydb.Open()
Dim Y As Integer = Session("Itemcount")
For M = 1 To Y
Session("FUt") = "L" + M.ToString
Session("FUDt") = "T" + M.ToString
Dim sqlstring = "INSERT INTO [Followup] ([MRN], [FU], [FUData]) VALUES (@MRNtxt, @" + Session("FUt") + ", @" + Session("FUDt") + ");"
Dim mydbcommand As New OleDbCommand(sqlstring, mydb)
mydbcommand.Parameters.Add("@MRNtxt", OleDbType.VarChar).Value = MRNtxt.Text
mydbcommand.Parameters.Add("@" + Session("FUt"), OleDbType.VarChar).Value = Session("FUt").Text
mydbcommand.Parameters.Add("@" + Session("FUDt"), OleDbType.VarChar).Value = Session("FUDt").Text
mydbcommand.ExecuteNonQuery()
Next
mydb.Close()
End Sub
错误消息看起来像这样当我点击插入
the error message looks like this when i click "insert"
推荐答案
请查看这篇文章
这篇关于如何动态生成文本框和收集用户输入的数据？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
