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嗨,大家好我在我的視圖中有一個下拉列表和一個提交按鈕。 我希望用戶能夠在下拉列表中選擇一個項目,以調用從數據庫獲取數據的控制器中的操作方法。mvc3 html.Dropdownlist()和html.beginform()
我也有一個按鈕,我希望用戶能夠選擇網格中的複選框,然後單擊提交按鈕將複選框的值傳遞給控制器中的操作方法。
問題是,當我從下拉列表中選擇一個項目它要求提交按鈕「DiscontinueProduct」和 沒有操作方法的下拉列表(「GetProductByID」)的操作方法,可有人告訴我什麼我」米做錯了嗎? 這是我的代碼。
在此先感謝。
=============
視圖<div>
@Using Html.BeginForm("GetProductByID", "Product")
@Html.DropDownList("CategoryID", DirectCast(ViewData("Categories"), SelectList), " -- Choose One -- ", New With {Key .onchange = "$('form').submit();"})
End Using
</div>
@Using Html.BeginForm("DiscontinueProduct", "Product")
@<text>
<table>
<tr>
<th></th>
<th>ProductName</th>
<th>SupplierID</th>
<th>CategoryID</th>
<th>Discontinued</th>
</tr>
@For Each item In Model
@<tr>
<td>
@Html.ActionLink("Edit", "Edit", New With {.id = item.ProductID}) |
@Html.ActionLink("Details", "Details", New With {.id = item.ProductID}) |
@Html.ActionLink("Delete", "Delete", New With {.id = item.ProductID})
</td>
<td>@item.ProductName</td>
<td>@item.SupplierID</td>
<td>@item.CategoryID
<input type="checkbox" name="task" id="isTaskSelected" value=" @item.CategoryID.ToString() " />
</td>
<td>@item.Discontinued</td>
</tr>
Next
</table>
<div id="btncomplete" style="display: none">
<input type="submit" value="Discontinue" />
</div>
</text>
End Using
=====================
控制器
Function GetProductByID(ByVal id As Integer) As ActionResult
Dim cquery2 = From product In db.Products
Where product.CategoryID = id
viewmodel.ProductList = cquery2.ToList()
Return PartialView("Products", viewmodel.ProductList)
Return PartialView("Products", viewmodel.ProductList)
End Function
<HttpPost()> _
Function DiscontinueProduct(ByVal collection As FormCollection) As ActionResult
Try
' Code to update product field as discontinue.
Return RedirectToAction("Index")
Catch
Return View()
End Try
End Function