输入字符串的格式不正确。确保方法参数的格式正确

[dunchange]

SqlCommand cmd = new SqlCommand("Update dbo.guestInfo set Reply = '"+ this.txtContent.Text+"' where ID = "+ int.Parse(ID) +"", conn);

说我输入的字符串格式不正确，请帮忙啊

[gjw_8888]

string sql="Update dbo.guestInfo set Reply ='"+ this.txtContent.Text+"' where ID = "+ ID.tostring()

[LemIST]

[Quote=引用 3 楼 dunchange 的回复:]
ID是 int类型的
[/Quote]
用ID.ToString()
SqlCommand cmd = new SqlCommand("Update dbo.guestInfo set Reply = '"+ this.txtContent.Text+"' where ID = "+ ID.ToString() +"", conn);

[LemIST]

int.Parse(ID) ==> ID

[zgke]

SqlCommand cmd = new SqlCommand("Update dbo.guestInfo set Reply = '"+ this.txtContent.Text+"' where ID = "+ ID.ToString() +"", conn);


ID是什么类型的?

[dunchange]

ID是 int类型的

[dunchange]

不对啊会提示新的问题啊

[pennymay]

SqlCommand cmd = new SqlCommand("Update dbo.guestInfo set Reply = '"+ this.txtContent.Text+"' where ID = '"+ int.Parse(ID) +"'", conn);