2
Salutations, J'ai un problème pour utiliser la propriété de valeur sélectionnée de CascadingDropDown.C# ASP.NET AJAX CascadingDropDown Problème de propriété de valeur sélectionnée
J'ai 3 commandes déroulantes asp avec ajax CascadingDropDown pour chacune d'entre elles.
Je n'ai aucun problème pour lier des données à 3 CascadingDropDown mais mon problème est de rétablir CascadingDropDown. Simplement ce que je veux faire est de sélectionner un enregistrement de Gridview qui a les valeurs sélectionnées pour le CascadingDropDown que je veux passer puis relier le CascadingDropDown avec la valeur sélectionnée.
Je poste mon code vers le bas qui comprennent:
Code 1-ASP.NET.
2-Code derrière pour gérer l'enregistrement sélectionné à partir de la grille.
3 Servisice Web qui gère les données de liaison au 3 CascadingDropDown.
Veuillez indiquer comment rétablir les données dans CascadingDropDown avec la valeur sélectionnée. Par la façon dont j'ai utilisé la valeur de propriété sélectionnée comme indiqué dans mon code, mais il ne fonctionne pas et il n'y a pas d'erreur.
Merci,
........................ code ASP.NET ......... ...............
<%@ Page Title="" Language="C#" MasterPageFile="~/Master.Master" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="IMAM_APPLICATION.WebForm1" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataKeyNames="idcontact_info" DataSourceID="ObjectDataSource1"
onselectedindexchanged="GridView1_SelectedIndexChanged">
<Columns>
<asp:CommandField ShowSelectButton="True" />
<asp:BoundField DataField="idcontact_info" HeaderText="idcontact_info"
InsertVisible="False" ReadOnly="True" SortExpression="idcontact_info" />
<asp:BoundField DataField="Work_Field" HeaderText="Work_Field"
SortExpression="Work_Field" />
<asp:BoundField DataField="Occupation" HeaderText="Occupation"
SortExpression="Occupation" />
<asp:BoundField DataField="sub_Occupation" HeaderText="sub_Occupation"
SortExpression="sub_Occupation" />
</Columns>
</asp:GridView>
<asp:Label ID="lbl" runat="server" Text="Label"></asp:Label>
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server"
DeleteMethod="Delete" InsertMethod="Insert"
OldValuesParameterFormatString="original_{0}" SelectMethod="GetData"
TypeName="IMAM_APPLICATION.DSContactTableAdapters.contact_infoTableAdapter"
UpdateMethod="Update">
<DeleteParameters>
<asp:Parameter Name="Original_idcontact_info" Type="Int32" />
</DeleteParameters>
<UpdateParameters>
<asp:Parameter Name="Work_Field" Type="String" />
<asp:Parameter Name="Occupation" Type="String" />
<asp:Parameter Name="sub_Occupation" Type="String" />
<asp:Parameter Name="Original_idcontact_info" Type="Int32" />
</UpdateParameters>
<InsertParameters>
<asp:Parameter Name="Work_Field" Type="String" />
<asp:Parameter Name="Occupation" Type="String" />
<asp:Parameter Name="sub_Occupation" Type="String" />
</InsertParameters>
</asp:ObjectDataSource>
<asp:DropDownList ID="cmbWorkField" runat="server" Style="top: 715px; left: 180px;
position: absolute; height: 22px; width: 126px">
</asp:DropDownList>
<asp:DropDownList runat="server" ID="cmbOccupation" Style="top: 745px; left: 180px;
position: absolute; height: 22px; width: 77px">
</asp:DropDownList>
<asp:DropDownList ID="cmbSubOccup" runat="server"
style="position:absolute; top: 775px; left: 180px;">
</asp:DropDownList>
<cc1:CascadingDropDown ID="cmbWorkField_CascadingDropDown" runat="server"
TargetControlID="cmbWorkField"
Category="WorkField"
LoadingText="Please Wait ..."
PromptText="Select Wor kField ..."
ServiceMethod="GetWorkField"
ServicePath="ServiceTags.asmx">
</cc1:CascadingDropDown>
<cc1:CascadingDropDown ID="cmbOccupation_CascadingDropDown" runat="server"
TargetControlID="cmbOccupation"
Category="Occup"
LoadingText="Please wait..."
PromptText="Select Occup ..."
ServiceMethod="GetOccup"
ServicePath="ServiceTags.asmx"
ParentControlID="cmbWorkField">
</cc1:CascadingDropDown>
<cc1:CascadingDropDown ID="cmbSubOccup_CascadingDropDown" runat="server"
Category="SubOccup"
Enabled="True"
LoadingText="Please Wait..."
ParentControlID="cmbOccupation"
PromptText="Select Sub Occup"
ServiceMethod="GetSubOccup"
ServicePath="ServiceTags.asmx"
TargetControlID="cmbSubOccup">
</cc1:CascadingDropDown>
</asp:Content>
......................................................
C# code behind
......................................................
protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
string strg = GridView1.SelectedDataKey["idcontact_info"].ToString();
int index = Convert.ToInt32(GridView1.SelectedDataKey["idcontact_info"].ToString());
//txtSearch.Text = GridView1.SelectedIndex.ToString();
// txtSearch.Text = GridView1.SelectedDataKey["idcontact_info"].ToString();
DSContactTableAdapters.contact_infoTableAdapter GetByIDAdapter = new DSContactTableAdapters.contact_infoTableAdapter();
DSContact.contact_infoDataTable ByID = GetByIDAdapter.GetDataByID(index);
//DSSearch.contact_infoDataTable FirstName = FirstNameAdapter.GetDataByFirstNameList(prefixText);
foreach (DataRow dr in ByID.Rows)
{
lbl.Text = dr["Work_Field"].ToString() + "....." + dr["Occupation"].ToString() + "....." + dr["sub_Occupation"].ToString();
cmbWorkField_CascadingDropDown.SelectedValue = dr["Work_Field"].ToString();
cmbOccupation_CascadingDropDown.SelectedValue = dr["Occupation"].ToString();
cmbSubOccup_CascadingDropDown.SelectedValue = dr["sub_Occupation"].ToString();
}
}
.......................................................
web Service
.......................................................
[WebMethod]
public CascadingDropDownNameValue[] GetWorkField(string knownCategoryValues, string category)
{
//dsCarsTableAdapters.CarsTableAdapter makeAdapter = new dsCarsTableAdapters.CarsTableAdapter();
//dsCars.CarsDataTable makes = makeAdapter.GetAllCars();
DSContactTableAdapters.tag_work_fieldTableAdapter GetWorkFieldAdapter = new DSContactTableAdapters.tag_work_fieldTableAdapter();
DSContact.tag_work_fieldDataTable WorkFields = GetWorkFieldAdapter.GetDataByGetWorkField();
List<CascadingDropDownNameValue> values = new List<CascadingDropDownNameValue>();
foreach (DataRow dr in WorkFields)
{
string Work_Field = (string)dr["work_Field_name"];
int idtag_work_field = (int)dr["idtag_work_field"];
values.Add(new CascadingDropDownNameValue(Work_Field, idtag_work_field.ToString()));
}
return values.ToArray();
}
[WebMethod]
public CascadingDropDownNameValue[] GetOccup(string knownCategoryValues, string category)
{
StringDictionary kv = CascadingDropDown.ParseKnownCategoryValuesString(knownCategoryValues);
int idtag_work_field;
if (!kv.ContainsKey("WorkField") || !Int32.TryParse(kv["WorkField"], out idtag_work_field))
{
return null;
}
//dsCarModelsTableAdapters.CarModelsTableAdapter modelAdapter = new dsCarModelsTableAdapters.CarModelsTableAdapter();
//dsCarModels.CarModelsDataTable models = modelAdapter.GetModelsByCarId(makeId);
DSContactTableAdapters.tag_OccupTableAdapter GetOccupAdapter = new DSContactTableAdapters.tag_OccupTableAdapter();
DSContact.tag_OccupDataTable Occups = GetOccupAdapter.GetByOccup_ID(idtag_work_field);
//
List<CascadingDropDownNameValue> values = new List<CascadingDropDownNameValue>();
foreach (DataRow dr in Occups)
{
values.Add(new CascadingDropDownNameValue((string)dr["Occup_Name"], dr["idtag_Occup"].ToString()));
}
return values.ToArray();
}
[WebMethod]
public CascadingDropDownNameValue[] GetSubOccup(string knownCategoryValues, string category)
{
StringDictionary kv = CascadingDropDown.ParseKnownCategoryValuesString(knownCategoryValues);
int idtag_Occup;
if (!kv.ContainsKey("Occup") || !Int32.TryParse(kv["Occup"], out idtag_Occup))
{
return null;
}
//dsModelColorsTableAdapters.ModelColorsTableAdapter adapter = new dsModelColorsTableAdapters.ModelColorsTableAdapter();
//dsModelColors.ModelColorsDataTable colors = adapter.GetColorsByModelId(colorId);
DSContactTableAdapters.tag_Sub_OccupTableAdapter GetSubOccupAdapter = new DSContactTableAdapters.tag_Sub_OccupTableAdapter();
DSContact.tag_Sub_OccupDataTable SubOccups = GetSubOccupAdapter.GetDataBy_Sub_Occup_ID(idtag_Occup);
List<CascadingDropDownNameValue> values = new List<CascadingDropDownNameValue>();
foreach (DataRow dr in SubOccups)
{
values.Add(new CascadingDropDownNameValue((string)dr["Sub_Occup_Name"], dr["idtag_Sub_Occup"].ToString()));
}
return values.ToArray();
}
MISE à JOUR:
my master page
...................................
<%@ Master Language="C#" AutoEventWireup="true" CodeBehind="Master.master.cs" Inherits="IMAM_APPLICATION.Master" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<%--<asp:ScriptManager ID="ScriptManager1" runat="server" />--%>
<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
</asp:ToolkitScriptManager>
</div>
<div>
<table class="style1" frame="vSides">
<tr>
<td class="style17" bgcolor="#FFFF99">
</td>
<td class="style18" style="">
<img alt="" src="Images/banner1.gif"
style="width: 950px; height: 89px; margin-bottom: 0px;" /></td>
<td class="style17" bgcolor="#FFFF99">
</td>
</tr>
<tr>
<td class="style15">
</td>
<td class="style16" bgcolor="#FFFF99">
<asp:Menu ID="Menu1" runat="server" Width="44px" Orientation="Horizontal"
DataSourceID="SiteMapDataSource1" BackColor="#FFFBD6"
DynamicHorizontalOffset="2" Font-Names="Verdana" Font-Size="0.8em"
ForeColor="#990000" StaticDisplayLevels="2" StaticSubMenuIndent="10px">
<StaticMenuStyle BorderStyle="Dotted" />
<StaticSelectedStyle BackColor="#FFCC66" />
<StaticMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" />
<DynamicHoverStyle BackColor="#990000" ForeColor="White" />
<DynamicMenuStyle BackColor="#FFFBD6" />
<DynamicItemTemplate>
<%# Eval("Text") %>
</DynamicItemTemplate>
<DynamicSelectedStyle BackColor="#FFCC66" />
<DynamicMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" />
<StaticHoverStyle BackColor="#990000" ForeColor="White" />
<StaticItemTemplate>
<%# Eval("Text") %>
</StaticItemTemplate>
</asp:Menu>
</td>
<td class="style15">
</td>
</tr>
<tr>
<td class="style19" bgcolor="#FFFF99">
</td>
<td class="style20">
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</td>
<td class="style19" bgcolor="#FFFF99">
</td>
</tr>
<tr>
<td class="style7">
</td>
<td class="style8" style="" bgcolor="#FFFF99">
Copyright Imam Mahdi Association of Marjeya</td>
<td class="style7">
</td>
</tr>
</table>
</div>
<asp:SiteMapDataSource ID="SiteMapDataSource1" runat="server" />
</form>
</body>
</html>
Pouvez-vous envoyer votre code de page master.master et événement Page_Load de la page principale et la page WebForm1? – IsmailS
@Ismail J'ai posté mon code de page maître et l'événement Page_Load pour les deux n'a rien à l'intérieur. Merci – Eyla
Est-ce un problème de navigation lorsque vous revenez à la page et que vos commandes déroulantes ne sont pas définies comme elles étaient quand vous êtes parti, et que la grille n'a pas les bonnes valeurs? – ICodeForCoffee