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我不知道我應該在我的vb.net項目後面的代碼中編寫什麼。我有一個過濾器,可以過濾gridview。當試圖聲明標量變量@CompanyID時,我得到了這篇文章標題中提到的錯誤。有人能幫我嗎?我試圖在很多論壇上尋找答案,但我找不到正確的答案。'System.Web.UI.WebControls.Repeater'不包含名爲'SelectedValue'的屬性
dsLetters.SelectCommand = "SELECT DISTINCT LEFT(ProductName, 1) AS [Letter]
FROM Product, CompanyLink, Company
WHERE Product.ProductID = CompanyLink.ProductID
AND CompanyLink.CompanyID = Company.CompanyID
AND Company.CompanyID = @CompanyID"
'declaring scalar variable @CompanyID
dsLetters.SelectParameters.Clear()
Dim cp As ControlParameter = New ControlParameter
cp.ControlID = "rptLetters"
cp.DefaultValue = "-1"
cp.Name = "CompanyID"
cp.PropertyName = "SelectedValue"
cp.Type = TypeCode.Decimal
dsLetters.SelectParameters.Add(cp)