dropdownlist联动

答案:2 悬赏:60 手机版

解决时间 2021-10-16 00:21

提问者网友：棒棒糖
2021-10-15 18:55

dropdownlist联动

最佳答案

五星知识达人网友：低音帝王
2021-10-15 19:07

你应该这样写protected void dalei_SelectedIndexChanged(object sender, EventArgs e) { string dl; dl = this.dalei.Text; if (dl == "通知文件-") { this.xiaolei.Items[4].Enabled = false; this.xiaolei.Items[5].Enabled = false; this.xiaolei.Items[6].Enabled = false; this.xiaolei.Items[7].Enabled = false; this.xiaolei.Items[8].Enabled = false; this.xiaolei.Items[9].Enabled = false; this.xiaolei.Items[0].Enabled = true; this.xiaolei.Items[1].Enabled = true; this.xiaolei.Items[2].Enabled = true; this.xiaolei.Items[3].Enabled = true; } else if (dl == "业务工作-") { this.xiaolei.Items[1].Enabled = false; this.xiaolei.Items[2].Enabled = false; this.xiaolei.Items[3].Enabled = false; this.xiaolei.Items[8].Enabled = false; this.xiaolei.Items[9].Enabled = false; this.xiaolei.Items[0].Enabled = true; this.xiaolei.Items[4].Enabled = true; this.xiaolei.Items[5].Enabled = true; this.xiaolei.Items[6].Enabled = true; this.xiaolei.Items[7].Enabled = true; } else if (dl == "其他-") { this.xiaolei.Items[0].Enabled = false; this.xiaolei.Items[1].Enabled = false; this.xiaolei.Items[2].Enabled = false; this.xiaolei.Items[3].Enabled = false; this.xiaolei.Items[4].Enabled = false; this.xiaolei.Items[5].Enabled = false; this.xiaolei.Items[6].Enabled = false; this.xiaolei.Items[7].Enabled = false; this.xiaolei.Items[8].Enabled = true; this.xiaolei.Items[9].Enabled = true; } else { this.xiaolei.Items[1].Enabled = false; this.xiaolei.Items[2].Enabled = false; this.xiaolei.Items[3].Enabled = false; this.xiaolei.Items[4].Enabled = false; this.xiaolei.Items[5].Enabled = false; this.xiaolei.Items[6].Enabled = false; this.xiaolei.Items[7].Enabled = false; this.xiaolei.Items[8].Enabled = false; this.xiaolei.Items[9].Enabled = false; this.xiaolei.Items[0].Enabled = true; } }

全部回答

1楼网友：人间朝暮
2021-10-15 20:31

........没你这么写的取到大类文本根据文本查询将查出的数据绑给小类的dropdownlist autopostback 设置成true

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