GridView動態生成控件，取值問題？

uoche 2007-08-08 04:33:26

現在有一問題，GridView需要動態綁定表，對表中的相應欄位內容動態生成控件（如：Dropdownlist），並從中取得控件中的值，下面代碼不能實現，大家有什麼好的方法了？

Sub BindGrid()
Dim dt As DataTable
dt = Mydb.GetDataTable("select top 20 * from PL_Missingdata")
Me.GridView1.DataSource = dt
Me.GridView1.DataBind()
End Sub

Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
If (e.Row.RowType = DataControlRowType.DataRow) Then
Dim dt, Dorp As DataTable
Dim i As Integer
dt = Mydb.GetDataTable("Exec Mp_GetColumnName @TableName='PL_Missingdata'") '取得表的列名
For i = 2 To dt.Rows.Count - 3 '循環列
Select Case dt.Rows(i).Item(0)
Case "OrgCode"
If e.Row.Cells(i + 1).Text.Trim = " " Then '根據當前單元格內容是空時生成一個DropDownList
Dim ddl As DropDownList = New DropDownList()
ddl.ID = "DropDownList1"
Dorp = Mydb.GetDataTable("[MD_GetOrgList]")
Dim row As DataRow = Dorp.NewRow
Dorp.Rows.InsertAt(row, 0)
ddl.DataSource = Dorp
ddl.DataValueField = "OrgCode"
ddl.DataBind()
e.Row.Cells(i + 1).Controls.Add(ddl)
Dorp.Dispose()
End If
Case "CorpCode"
If e.Row.Cells(i + 1).Text.Trim = " " Then '根據當前單元格內容是空時生成一個DropDownList
Dim ddl2 As DropDownList = New DropDownList()
ddl2.ID = "ddl2" '
Dorp = Mydb.GetDataTable("MD_Corp_SP @flag=2")
Dim row As DataRow = Dorp.NewRow
Dorp.Rows.InsertAt(row, 0)
ddl2.DataSource = Dorp
ddl2.DataValueField = "CorpCode"
ddl2.DataBind()
e.Row.Cells(i + 1).Controls.Add(ddl2)
End If
End Select
Next
End If
End Sub

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim gvInfo As GridViewRow
For Each gvInfo In Me.GridView1.Rows
If CType(gvInfo.Cells(0).FindControl("CheckBox1"), CheckBox).Checked = True Then
Response.Write(CType(gvInfo.FindControl("CheckBox1"), CheckBox).Checked) '問題從這裡是取不到動態生成DropDownList的值，固定的控件值又可以取得
End If
Next
Call BindGrid()
End Sub

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Then
Call BindGrid()
End If
End Sub

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