.NET ------ 通过身份证号获取省市县

实现输入正确的身份证号后，点击图片校检将省市区（县）和年龄计算出来

 前面页面展示

 代码：

<tr>
<td width="15%" align="right">身份证号：</td>
<td align="left" bgcolor="#FFFFFF" width="35%">
<asp:TextBox MaxLength="18"  ID="tbStuCardCode" runat="server"></asp:TextBox>
<asp:ImageButton ID="btnCheckCard" runat="server" ImageUrl="~/qdAdmin/qdimages/check.png" title="校验检查" onclick="btncheckTel_Click" ImageAlign="AbsMiddle"/>
<br><asp:Label ID="LabelCheckCardMsg" runat="server" ForeColor="#FF3300"></asp:Label>
</td>
<td width="15%" align="right">户籍地：</td>
<td align="left" bgcolor="#FFFFFF" width="35%">
<asp:DropDownList ID="ddlPlaceSheng" runat="server" AutoPostBack="True" onselectedindexchanged="ddlSheng_SelectedIndexChanged" Width="90px"></asp:DropDownList>
<asp:DropDownList ID="ddlPlaceCity" runat="server" AutoPostBack="True" onselectedindexchanged="ddlSheng_SelectedIndexChanged" Width="90px"></asp:DropDownList>
<asp:DropDownList ID="ddlPlaceArea" runat="server" Width="90px"></asp:DropDownList>
</td>
</tr>

后面代码展示

 代码

 else if (btn.ID == "btnCheckCard")
        {
            this.LabelCheckCardMsg.Text = string.Empty;
            string s = this.tbStuCardCode.Text.Trim();
            if (s.Length != 18)
            {
                this.LabelCheckCardMsg.Text = "请正确输入身份证号"; return;
            }
            string sCard = "086" + s.Substring(0, 6);
            List<ITEM.Model.qdCnt4.FourCollsType> mTypeList = _bllTypeColls.GetListSelFourCollsType3("TypeCollCode", base.EnterpriseGuid, " and TypeCollMark='" + sCard + "'");
            if (mTypeList.Count == 1)
            {
                string sTypeCollCode = mTypeList[0].TypeCollCode;
                //通过身份证号获取 省、市、区（县）
                this.ddlPlaceSheng.SelectedValue = sTypeCollCode.Length >= 18 ? sTypeCollCode.Substring(0, 18) : "";//户籍
                ddlSheng_SelectedIndexChanged(this.ddlPlaceSheng, new EventArgs());
                this.ddlPlaceCity.SelectedValue = sTypeCollCode.Length >= 27 ? sTypeCollCode.Substring(0, 27) : "";//户籍
                ddlSheng_SelectedIndexChanged(this.ddlPlaceCity, new EventArgs());
                this.ddlPlaceArea.SelectedValue = sTypeCollCode;//户籍
            }
            else if (mTypeList.Count > 1)
            {
                this.LabelCheckCardMsg.Text = "身份证号未唯一匹配到区域"; return;
            }
            else
            {
                this.LabelCheckCardMsg.Text = "身份证号未匹配到区域"; return;
            }
            //通过截取身份证号计算年龄
            string sAge = s.Substring(6, 4);
            try
            {
                tbStuAge.Text = (DateTime.Now.Year - Convert.ToInt32(sAge)).ToString();
            }
            catch
            {
                this.LabelCheckCardMsg.Text = "身份证号输入错误"; return;
            }
        }