如何使用Javascript插入文本框

我是ASPX的新手，在开发代码时遇到了问题。请看下面。如何在“删除”按钮旁边设置文本框

testTypeNode.Text = testTypeNode.Text & "" & _
                    " <img src=""../images/delete_16x.ico""" & _
                    " style=""text-align:bottom; cursor:pointer;"" alt=""Delete TestType""" & _
                    " title=""Delete TestType"" onclick=""javascript:if(confirm('`enter code here`Are you sure you want to delete? Any running tests will be aborted!'))" & _
                    " {" & ClientScript.GetPostBackEventReference(btnDeleteTestType, "" & sequenceNode.Value.ToString & _
                    WordSeparationChar & testTypeNode.Value.ToString & "") & ";};"" />"

答案是:

testTypeNode.Text = testTypeNode.Text & "" & _
                                                            " <img src=""../images/delete_16x.ico""" & _
                                                            " style=""text-align:bottom; cursor:pointer;"" alt=""Delete TestType""" & _
                                                            " title=""Delete TestType"" onclick=""javascript:if(confirm('Are you sure you want to delete? Any running tests will be aborted!'))" & _
                                                            " {" & ClientScript.GetPostBackEventReference(btnDeleteTestType, "" & sequenceNode.Value.ToString & _
                                                            WordSeparationChar & testTypeNode.Value.ToString & "") & ";};"" />" & _
                                                            " <input type = ""text"" id = ""txtExperimentalStressdays"" name =""ExperimentalStressdays"" size = ""5"" title=""Please enter the Experimental Stressdays"" onclick="javascript:IsNumeric()/>"

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您希望在回发到服务器或客户端时发生这种情况吗？您只是想在“删除”按钮旁边获得一个文本框吗？很抱歉语言不通，请继续回答上面的另一个问题。如何设置上述文本框id=txtExperimentalStressdays的可见性条件。我希望通过使用此条件来隐藏，就像testdata='Yes'然后txtExperimentalStressdays.visible=true否则txtExperimentalStressdays.visible=false结束如果上述代码不允许我执行此类任务，请帮助。上述代码面临的第二个问题是：如何验证txtExperimentalStressdays数据的有效性数字与否？请帮忙