联动
<tr> <td width="20%" align="right" bgcolor="#F5F5F5">报考地区：</td> <td align="left" bgcolor="#FFFFFF" width="30%"> <asp:DropDownList ID="ddlXueLi_Area_4501_Code" runat="server" width="121px" AutoPostBack="true" OnSelectedIndexChanged="ddlXueLi_Area_4501_Code_SelectedIndexChanged"></asp:DropDownList></td> <td width="20%" align="right" bgcolor="#F5F5F5">报考层次：</td> <td align="left" bgcolor="#FFFFFF" width="30%"> <asp:DropDownList ID="ddlXueLi_CengCi_4501_Code" runat="server" width="121px" AutoPostBack="true" OnSelectedIndexChanged="ddlXueLi_Area_4501_Code_SelectedIndexChanged"></asp:DropDownList></td> </tr> <tr> <td width="20%" align="right" bgcolor="#F5F5F5">报考学校：</td> <td align="left" bgcolor="#FFFFFF" width="30%"> <asp:DropDownList ID="ddlXueLi_School_4501_Code" runat="server" width="121px" AutoPostBack="true" OnSelectedIndexChanged="ddlXueLi_Area_4501_Code_SelectedIndexChanged"></asp:DropDownList></td> <td width="20%" align="right" bgcolor="#F5F5F5">报考专业：</td> <td align="left" bgcolor="#FFFFFF" width="30%"> <asp:DropDownList ID="ddlXueLi_ZhuanYe_4501_Code" runat="server" width="121px" AutoPostBack="true" OnSelectedIndexChanged="ddlXueLi_Area_4501_Code_SelectedIndexChanged"></asp:DropDownList></td> </tr>
获取第一级的，然后通过前面的 函数调用后面的方法
{//报考地区
List<ITEM.Model.qdCnt4.FourCollsType> mList = _bllTypeColls.Get_Ex_FourCollsTypeListByIDLevel("TypeCollCode,TypeCollName", base.EnterpriseGuid, 4501, 1, (float)_iFlag);
this.ddlXueLi_Area_4501_Code.DataTextField = "TypeCollName";
this.ddlXueLi_Area_4501_Code.DataValueField = "TypeCollCode";
this.ddlXueLi_Area_4501_Code.DataSource = mList;
this.ddlXueLi_Area_4501_Code.DataBind();
this.ddlXueLi_Area_4501_Code.Items.Insert(0, new ListItem());
}
方法
protected void ddlXueLi_Area_4501_Code_SelectedIndexChanged(object sender, EventArgs e) { DropDownList ddl = (DropDownList)sender; if (ddl.ID == "ddlXueLi_Area_4501_Code") { string sCode = this.ddlXueLi_Area_4501_Code.SelectedValue; if (sCode != string.Empty) { List<ITEM.Model.qdCnt4.FourCollsType> mList = _bllTypeColls.Get_Ex_FourCollsTypeList_CodeDown("TypeCollCode,TypeCollName", base.EnterpriseGuid, 4501, sCode, 2, (float)_iFlag); this.ddlXueLi_CengCi_4501_Code.DataTextField = "TypeCollName"; this.ddlXueLi_CengCi_4501_Code.DataValueField = "TypeCollCode"; this.ddlXueLi_CengCi_4501_Code.DataSource = mList; this.ddlXueLi_CengCi_4501_Code.DataBind(); this.ddlXueLi_CengCi_4501_Code.Items.Insert(0, new ListItem()); } } else if (ddl.ID == "ddlXueLi_CengCi_4501_Code") { string sCode = this.ddlXueLi_CengCi_4501_Code.SelectedValue; if (sCode != string.Empty) { List<ITEM.Model.qdCnt4.FourCollsType> mList = _bllTypeColls.Get_Ex_FourCollsTypeList_CodeDown("TypeCollCode,TypeCollName", base.EnterpriseGuid, 4501, sCode, 3, (float)_iFlag); this.ddlXueLi_School_4501_Code.DataTextField = "TypeCollName"; this.ddlXueLi_School_4501_Code.DataValueField = "TypeCollCode"; this.ddlXueLi_School_4501_Code.DataSource = mList; this.ddlXueLi_School_4501_Code.DataBind(); this.ddlXueLi_School_4501_Code.Items.Insert(0, new ListItem()); } } else if (ddl.ID == "ddlXueLi_School_4501_Code") { string sCode = this.ddlXueLi_School_4501_Code.SelectedValue; if (sCode != string.Empty) { List<ITEM.Model.qdCnt4.FourCollsType> mList = _bllTypeColls.Get_Ex_FourCollsTypeList_CodeDown("TypeCollCode,TypeCollName", base.EnterpriseGuid, 4501, sCode, 4, (float)_iFlag); this.ddlXueLi_ZhuanYe_4501_Code.DataTextField = "TypeCollName"; this.ddlXueLi_ZhuanYe_4501_Code.DataValueField = "TypeCollCode"; this.ddlXueLi_ZhuanYe_4501_Code.DataSource = mList; this.ddlXueLi_ZhuanYe_4501_Code.DataBind(); this.ddlXueLi_ZhuanYe_4501_Code.Items.Insert(0, new ListItem()); } } else if (ddl.ID == "ddlXueLi_ZhuanYe_4501_Code") { string sCode = this.ddlXueLi_ZhuanYe_4501_Code.SelectedValue; if (sCode != string.Empty) { ITEM.Model.qdCnt4.FourCollsType m = _bllTypeColls.Get_Ex_Model_FourCollsTypeListByCollCode("TypeCollCode,TypeCollName", base.EnterpriseGuid, 4501, sCode, (float)_iFlag); this.tbPrice_zhidao.Text = m.Ext01; } } }
保存的时候赋值
gbaoming_xueli.XueLi_Area_4501_Code = this.ddlXueLi_Area_4501_Code.SelectedValue; gbaoming_xueli.XueLi_Area_4501_Name = this.ddlXueLi_Area_4501_Code.SelectedItem.Text; gbaoming_xueli.XueLi_CengCi_4501_Code = this.ddlXueLi_CengCi_4501_Code.SelectedValue; gbaoming_xueli.XueLi_CengCi_4501_Name = this.ddlXueLi_CengCi_4501_Code.SelectedItem.Text; gbaoming_xueli.XueLi_School_4501_Code = this.ddlXueLi_School_4501_Code.SelectedValue; gbaoming_xueli.XueLi_School_4501_Name = this.ddlXueLi_School_4501_Code.SelectedItem.Text; gbaoming_xueli.XueLi_ZhuanYe_4501_Code = this.ddlXueLi_ZhuanYe_4501_Code.SelectedValue; gbaoming_xueli.XueLi_ZhuanYe_4501_Name = this.ddlXueLi_ZhuanYe_4501_Code.SelectedItem.Text; if (gbaoming_xueli.XueLi_Area_4501_Code == string.Empty) { WebMessageBox1.MessageBox_tishi(700, 300, 200, 300, "请选择报考地区"); return; } if (gbaoming_xueli.XueLi_CengCi_4501_Code == string.Empty) { WebMessageBox1.MessageBox_tishi(700, 300, 200, 300, "请选择报考层次"); return; } if (gbaoming_xueli.XueLi_School_4501_Code == string.Empty) { WebMessageBox1.MessageBox_tishi(700, 300, 200, 300, "请选择报考院校"); return; } if (gbaoming_xueli.XueLi_ZhuanYe_4501_Code == string.Empty) { WebMessageBox1.MessageBox_tishi(700, 300, 200, 300, "请选择专业名称"); return; }
修改展示使：
this.ddlXueLi_Area_4501_Code.SelectedValue = gbaoming_xueli.XueLi_Area_4501_Code; ddlXueLi_Area_4501_Code_SelectedIndexChanged(this.ddlXueLi_Area_4501_Code, new EventArgs()); this.ddlXueLi_CengCi_4501_Code.SelectedValue = gbaoming_xueli.XueLi_CengCi_4501_Code; ddlXueLi_Area_4501_Code_SelectedIndexChanged(this.ddlXueLi_CengCi_4501_Code, new EventArgs()); this.ddlXueLi_School_4501_Code.SelectedValue = gbaoming_xueli.XueLi_School_4501_Code; ddlXueLi_Area_4501_Code_SelectedIndexChanged(this.ddlXueLi_School_4501_Code, new EventArgs()); this.ddlXueLi_ZhuanYe_4501_Code.SelectedValue = gbaoming_xueli.XueLi_ZhuanYe_4501_Code; ddlXueLi_Area_4501_Code_SelectedIndexChanged(this.ddlXueLi_ZhuanYe_4501_Code, new EventArgs());
还有个
this.ddlXueLi_Area_4501_Code.Enabled = false; this.ddlXueLi_Area_4501_Code.Attributes.Add("style", "color:#888888;");//所属省 this.ddlXueLi_CengCi_4501_Code.Enabled = false; this.ddlXueLi_CengCi_4501_Code.Attributes.Add("style", "color:#888888;");//报考层次 this.ddlXueLi_School_4501_Code.Enabled = false; this.ddlXueLi_School_4501_Code.Attributes.Add("style", "color:#888888;");//报考层次 this.ddlXueLi_ZhuanYe_4501_Code.Enabled = false; this.ddlXueLi_ZhuanYe_4501_Code.Attributes.Add("style", "color:#888888;");//报考层次
使用会掉函数调用
