如何从过滤后的GridView中使DropDownList动态化
这是我的Asp.net代码：
<asp:UpdatePanel runat="server" ClientIDMode="Static" ID="TasksUpdatePanel" UpdateMode="Conditional">
<ContentTemplate>
<table class="taskGridView">
<tr>
<td>
<asp:DropDownList ID="ddlTaskName" CssClass="chosen-select" DataSourceID="dsPopulateTaskName" AutoPostBack="true" DataValueField="Task Name" runat="server" Width="100%" Font-Size="11px" AppendDataBoundItems="true" OnSelectedIndexChanged="ddlTaskName_onSelectIndexChanged">
<asp:ListItem Text="All" Value="%"></asp:ListItem>
</asp:DropDownList>
<asp:SqlDataSource ID="dsPopulateTaskName" runat="server" ConnectionString="<%$ ConnectionStrings:gvConnString %>" SelectCommand="SELECT DISTINCT [ATTR2739] 'Task Name' FROM HSI.RMOBJECTINSTANCE1224 CT INNER JOIN HSI.RMOBJECTINSTANCE1232 S ON CT.ATTR2846 = S.ATTR2821 INNER JOIN HSI.USERACCOUNT UA ON S.FK2852 = (UA.USERNUM * -1) LEFT JOIN HSI.RMOBJECTINSTANCE1251 PXC ON PXC.FK2924 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1249 P ON PXC.FK2923 = P.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1248 PRXC ON PRXC.FK2912 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1230 PR ON PR.OBJECTID = PRXC.FK2911 LEFT JOIN HSI.RMOBJECTINSTANCE1247 SXC ON SXC.FK2908 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1229 SI ON SI.OBJECTID = SXC.FK2907 INNER JOIN HSI.RMOBJECTINSTANCE1231 C ON CT.FK2927 = C.OBJECTID WHERE CT.ACTIVESTATUS = 0"></asp:SqlDataSource>
</td>
<td>
<asp:DropDownList ID="ddlService" CssClass="chosen-select" DataSourceID="dsPopulateService" AutoPostBack="true" DataValueField="Service" runat="server" Width="100%" Font-Size="11px" AppendDataBoundItems="true" OnSelectedIndexChanged="ddlService_onSelectIndexChanged">
<asp:ListItem Text="All" Value="%"></asp:ListItem>
</asp:DropDownList>
<asp:SqlDataSource ID="dsPopulateService" runat="server" ConnectionString="<%$ ConnectionStrings:gvConnString %>" SelectCommand="SELECT DISTINCT [ATTR2846] 'Service' FROM HSI.RMOBJECTINSTANCE1224 CT INNER JOIN HSI.RMOBJECTINSTANCE1232 S ON CT.ATTR2846 = S.ATTR2821 INNER JOIN HSI.USERACCOUNT UA ON S.FK2852 = (UA.USERNUM * -1) LEFT JOIN HSI.RMOBJECTINSTANCE1251 PXC ON PXC.FK2924 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1249 P ON PXC.FK2923 = P.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1248 PRXC ON PRXC.FK2912 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1230 PR ON PR.OBJECTID = PRXC.FK2911 LEFT JOIN HSI.RMOBJECTINSTANCE1247 SXC ON SXC.FK2908 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1229 SI ON SI.OBJECTID = SXC.FK2907 INNER JOIN HSI.RMOBJECTINSTANCE1231 C ON CT.FK2927 = C.OBJECTID WHERE CT.ACTIVESTATUS = 0"></asp:SqlDataSource>
</td>
<td>
<asp:DropDownList ID="ddlStatus" CssClass="chosen-select" DataSourceID="dsPopulateStatus" AutoPostBack="true" DataValueField="Status" runat="server" Width="100%" Font-Size="11px" AppendDataBoundItems="true" OnSelectedIndexChanged="ddlStatus_onSelectIndexChanged">
<asp:ListItem Text="All" Value="%"></asp:ListItem>
</asp:DropDownList>
<asp:SqlDataSource ID="dsPopulateStatus" runat="server" ConnectionString="<%$ ConnectionStrings:gvConnString %>" SelectCommand="SELECT DISTINCT [ATTR2812] 'Status' FROM HSI.RMOBJECTINSTANCE1224 CT INNER JOIN HSI.RMOBJECTINSTANCE1232 S ON CT.ATTR2846 = S.ATTR2821 INNER JOIN HSI.USERACCOUNT UA ON S.FK2852 = (UA.USERNUM * -1) LEFT JOIN HSI.RMOBJECTINSTANCE1251 PXC ON PXC.FK2924 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1249 P ON PXC.FK2923 = P.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1248 PRXC ON PRXC.FK2912 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1230 PR ON PR.OBJECTID = PRXC.FK2911 LEFT JOIN HSI.RMOBJECTINSTANCE1247 SXC ON SXC.FK2908 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1229 SI ON SI.OBJECTID = SXC.FK2907 INNER JOIN HSI.RMOBJECTINSTANCE1231 C ON CT.FK2927 = C.OBJECTID WHERE CT.ACTIVESTATUS = 0"></asp:SqlDataSource>
</td>
<td>
<asp:DropDownList ID="ddlDueDate" CssClass="chosen-select" DataSourceID="dsPopulateDueDate" AutoPostBack="true" DataValueField="Due Date" runat="server" Width="100%" Font-Size="11px" AppendDataBoundItems="true" OnSelectedIndexChanged="ddlDueDate_onSelectIndexChanged">
<asp:ListItem Text="All" Value="%"></asp:ListItem>
</asp:DropDownList>
<asp:SqlDataSource ID="dsPopulateDueDate" runat="server" ConnectionString="<%$ ConnectionStrings:gvConnString %>" SelectCommand="SELECT DISTINCT CONVERT(VARCHAR(14), [ATTR2752], 110) 'Due Date' FROM HSI.RMOBJECTINSTANCE1224 CT INNER JOIN HSI.RMOBJECTINSTANCE1232 S ON CT.ATTR2846 = S.ATTR2821 INNER JOIN HSI.USERACCOUNT UA ON S.FK2852 = (UA.USERNUM * -1) LEFT JOIN HSI.RMOBJECTINSTANCE1251 PXC ON PXC.FK2924 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1249 P ON PXC.FK2923 = P.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1248 PRXC ON PRXC.FK2912 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1230 PR ON PR.OBJECTID = PRXC.FK2911 LEFT JOIN HSI.RMOBJECTINSTANCE1247 SXC ON SXC.FK2908 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1229 SI ON SI.OBJECTID = SXC.FK2907 INNER JOIN HSI.RMOBJECTINSTANCE1231 C ON CT.FK2927 = C.OBJECTID WHERE CT.ACTIVESTATUS = 0"></asp:SqlDataSource>
</td>
<td>
<asp:DropDownList ID="ddlOwner" CssClass="chosen-select" DataSourceID="dsPopulateOwner" AutoPostBack="true" DataValueField="Owner" runat="server" Width="100%" Font-Size="11px" AppendDataBoundItems="true" OnSelectedIndexChanged="ddlOwner_onSelectIndexChanged">
<asp:ListItem Text="All" Value="%"></asp:ListItem>
</asp:DropDownList>
<asp:SqlDataSource ID="dsPopulateOwner" runat="server" ConnectionString="<%$ ConnectionStrings:gvConnString %>" SelectCommand="SELECT DISTINCT [REALNAME] 'Owner' FROM HSI.RMOBJECTINSTANCE1224 CT INNER JOIN HSI.RMOBJECTINSTANCE1232 S ON CT.ATTR2846 = S.ATTR2821 INNER JOIN HSI.USERACCOUNT UA ON S.FK2852 = (UA.USERNUM * -1) LEFT JOIN HSI.RMOBJECTINSTANCE1251 PXC ON PXC.FK2924 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1249 P ON PXC.FK2923 = P.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1248 PRXC ON PRXC.FK2912 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1230 PR ON PR.OBJECTID = PRXC.FK2911 LEFT JOIN HSI.RMOBJECTINSTANCE1247 SXC ON SXC.FK2908 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1229 SI ON SI.OBJECTID = SXC.FK2907 INNER JOIN HSI.RMOBJECTINSTANCE1231 C ON CT.FK2927 = C.OBJECTID WHERE CT.ACTIVESTATUS = 0"></asp:SqlDataSource>
</td>
<td>
<asp:DropDownList ID="ddlClient" CssClass="chosen-select" DataSourceID="dsPopulateClient" AutoPostBack="true" DataValueField="Client" runat="server" Width="100%" Font-Size="11px" AppendDataBoundItems="true" OnSelectedIndexChanged="ddlClient_onSelectIndexChanged">
<asp:ListItem Text="All" Value="%"></asp:ListItem>
</asp:DropDownList>
<asp:SqlDataSource ID="dsPopulateClient" runat="server" ConnectionString="<%$ ConnectionStrings:gvConnString %>" SelectCommand="SELECT DISTINCT [ATTR2815] 'Client' FROM HSI.RMOBJECTINSTANCE1224 CT INNER JOIN HSI.RMOBJECTINSTANCE1232 S ON CT.ATTR2846 = S.ATTR2821 INNER JOIN HSI.USERACCOUNT UA ON S.FK2852 = (UA.USERNUM * -1) LEFT JOIN HSI.RMOBJECTINSTANCE1251 PXC ON PXC.FK2924 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1249 P ON PXC.FK2923 = P.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1248 PRXC ON PRXC.FK2912 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1230 PR ON PR.OBJECTID = PRXC.FK2911 LEFT JOIN HSI.RMOBJECTINSTANCE1247 SXC ON SXC.FK2908 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1229 SI ON SI.OBJECTID = SXC.FK2907 INNER JOIN HSI.RMOBJECTINSTANCE1231 C ON CT.FK2927 = C.OBJECTID WHERE CT.ACTIVESTATUS = 0"></asp:SqlDataSource>
</td>
<td>
<asp:DropDownList ID="ddlSite" CssClass="chosen-select" DataSourceID="dsPopulateSite" AutoPostBack="true" DataValueField="Site" runat="server" Width="100%" Font-Size="11px" AppendDataBoundItems="true" OnSelectedIndexChanged="ddlSite_onSelectIndexChanged">
<asp:ListItem Text="All" Value="%"></asp:ListItem>
</asp:DropDownList>
<asp:SqlDataSource ID="dsPopulateSite" runat="server" ConnectionString="<%$ ConnectionStrings:gvConnString %>" SelectCommand="SELECT DISTINCT [ATTR2819] 'Site' FROM HSI.RMOBJECTINSTANCE1224 CT INNER JOIN HSI.RMOBJECTINSTANCE1232 S ON CT.ATTR2846 = S.ATTR2821 INNER JOIN HSI.USERACCOUNT UA ON S.FK2852 = (UA.USERNUM * -1) LEFT JOIN HSI.RMOBJECTINSTANCE1251 PXC ON PXC.FK2924 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1249 P ON PXC.FK2923 = P.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1248 PRXC ON PRXC.FK2912 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1230 PR ON PR.OBJECTID = PRXC.FK2911 LEFT JOIN HSI.RMOBJECTINSTANCE1247 SXC ON SXC.FK2908 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1229 SI ON SI.OBJECTID = SXC.FK2907 INNER JOIN HSI.RMOBJECTINSTANCE1231 C ON CT.FK2927 = C.OBJECTID WHERE CT.ACTIVESTATUS = 0"></asp:SqlDataSource>
</td>
<td>
<asp:DropDownList ID="ddlPractice" CssClass="chosen-select" DataSourceID="dsPopulatePractice" AutoPostBack="true" DataValueField="Practice" runat="server" Width="100%" Font-Size="11px" AppendDataBoundItems="true" OnSelectedIndexChanged="ddlPractice_onSelectIndexChanged">
<asp:ListItem Text="All" Value="%"></asp:ListItem>
</asp:DropDownList>
<asp:SqlDataSource ID="dsPopulatePractice" runat="server" ConnectionString="<%$ ConnectionStrings:gvConnString %>" SelectCommand="SELECT DISTINCT [ATTR2817] 'Practice' FROM HSI.RMOBJECTINSTANCE1224 CT INNER JOIN HSI.RMOBJECTINSTANCE1232 S ON CT.ATTR2846 = S.ATTR2821 INNER JOIN HSI.USERACCOUNT UA ON S.FK2852 = (UA.USERNUM * -1) LEFT JOIN HSI.RMOBJECTINSTANCE1251 PXC ON PXC.FK2924 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1249 P ON PXC.FK2923 = P.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1248 PRXC ON PRXC.FK2912 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1230 PR ON PR.OBJECTID = PRXC.FK2911 LEFT JOIN HSI.RMOBJECTINSTANCE1247 SXC ON SXC.FK2908 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1229 SI ON SI.OBJECTID = SXC.FK2907 INNER JOIN HSI.RMOBJECTINSTANCE1231 C ON CT.FK2927 = C.OBJECTID WHERE CT.ACTIVESTATUS = 0"></asp:SqlDataSource>
</td>
<td>
<asp:DropDownList ID="ddlProvider" CssClass="chosen-select" DataSourceID="dsPopulateProvider" AutoPostBack="true" DataValueField="Provider" runat="server" Width="100%" Font-Size="11px" AppendDataBoundItems="true" OnSelectedIndexChanged="ddlProvider_onSelectIndexChanged">
<asp:ListItem Text="All" Value="%"></asp:ListItem>
</asp:DropDownList>
<asp:SqlDataSource ID="dsPopulateProvider" runat="server" ConnectionString="<%$ ConnectionStrings:gvConnString %>" SelectCommand="SELECT DISTINCT [ATTR2919] 'Provider' FROM HSI.RMOBJECTINSTANCE1224 CT INNER JOIN HSI.RMOBJECTINSTANCE1232 S ON CT.ATTR2846 = S.ATTR2821 INNER JOIN HSI.USERACCOUNT UA ON S.FK2852 = (UA.USERNUM * -1) LEFT JOIN HSI.RMOBJECTINSTANCE1251 PXC ON PXC.FK2924 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1249 P ON PXC.FK2923 = P.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1248 PRXC ON PRXC.FK2912 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1230 PR ON PR.OBJECTID = PRXC.FK2911 LEFT JOIN HSI.RMOBJECTINSTANCE1247 SXC ON SXC.FK2908 = CT.OBJECTID LEFT JOIN HSI.RMOBJECTINSTANCE1229 SI ON SI.OBJECTID = SXC.FK2907 INNER JOIN HSI.RMOBJECTINSTANCE1231 C ON CT.FK2927 = C.OBJECTID WHERE CT.ACTIVESTATUS = 0"></asp:SqlDataSource>
</td>
</tr>
</table>
<asp:GridView ShowHeaderWhenEmpty="false" AlternatingRowStyle-BackColor="#EBE9E9" AutoGenerateColumns="false" OnSorting="yourTasksGV_Sorting" AllowSorting="true" ID="yourTasksGV" runat="server" ClientIDMode="Static" EmptyDataText="There is no data to display" OnRowDataBound="yourTasksGV_RowDataBound" OnRowCreated="yourTasksGV_RowCreated">
<Columns>
<asp:HyperLinkField Target="_blank" DataNavigateUrlFields="Task Detail" DataTextField="Task Name" DataNavigateUrlFormatString="" HeaderText="Task Detail" SortExpression="Task Name" ItemStyle-CssClass="taskTableColumn" />
<asp:BoundField DataField="Service" HeaderText="Service" SortExpression="Service" ItemStyle-CssClass="taskTableColumn" />
<asp:BoundField DataField="Status" HeaderText="Status" SortExpression="Status" ItemStyle-CssClass="taskTableColumn" />
<asp:BoundField DataField="Due Date" HeaderText="Due" SortExpression="Due Date" ItemStyle-CssClass="taskTableColumn" />
<asp:BoundField DataField="Owner" HeaderText="Owner" SortExpression="Owner" ItemStyle-CssClass="taskTableColumn" />
<asp:BoundField DataField="Client" HeaderText="Client" SortExpression="Client" ItemStyle-CssClass="taskTableColumn" />
<asp:BoundField DataField="Site" HeaderText="Site" SortExpression="Site" ItemStyle-CssClass="taskTableColumn" />
<asp:BoundField DataField="Practice" HeaderText="Practice" SortExpression="Practice" ItemStyle-CssClass="taskTableColumn" />
<asp:BoundField DataField="Provider" HeaderText="Provider" SortExpression="Provider" ItemStyle-CssClass="taskTableColumn" />
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
我的代码隐藏：
protected void Page_Load(object sender, EventArgs e)
{
strMainQuery = @"SELECT
CT.OBJECTID,
'http://checkthis.com/d=' + CAST(CT.OBJECTID AS VARCHAR) + '&classid=1224' 'Task Detail'
,LTRIM(RTRIM(CT.ATTR2846)) 'Service'
,LTRIM(RTRIM(CT.ATTR2812)) 'Status'
,CONVERT(VARCHAR(14), CT.ATTR2752, 110) 'Due Date'
,LTRIM(RTRIM(CT.ATTR2739)) 'Task Name'
,LTRIM(RTRIM(UA.REALNAME)) 'Owner'
,LTRIM(RTRIM(C.ATTR2815)) 'Client'
,RTRIM(SI.ATTR2819) 'Site'
,RTRIM(PR.ATTR2817) 'Practice'
,RTRIM(P.ATTR2919) 'Provider'
FROM HSI.RMOBJECTINSTANCE1224 CT
INNER JOIN HSI.RMOBJECTINSTANCE1232 S ON CT.ATTR2846 = S.ATTR2821
INNER JOIN HSI.USERACCOUNT UA ON S.FK2852 = (UA.USERNUM * -1)
LEFT JOIN HSI.RMOBJECTINSTANCE1251 PXC ON PXC.FK2924 = CT.OBJECTID
LEFT JOIN HSI.RMOBJECTINSTANCE1249 P ON PXC.FK2923 = P.OBJECTID
LEFT JOIN HSI.RMOBJECTINSTANCE1248 PRXC ON PRXC.FK2912 = CT.OBJECTID
LEFT JOIN HSI.RMOBJECTINSTANCE1230 PR ON PR.OBJECTID = PRXC.FK2911
LEFT JOIN HSI.RMOBJECTINSTANCE1247 SXC ON SXC.FK2908 = CT.OBJECTID
LEFT JOIN HSI.RMOBJECTINSTANCE1229 SI ON SI.OBJECTID = SXC.FK2907
INNER JOIN HSI.RMOBJECTINSTANCE1231 C ON CT.FK2927 = C.OBJECTID";
if (!Page.IsPostBack)
{
ViewState["sortOrder"] = "Asc";
ViewState["sortExp"] = "Due Date";
PullData("Due Date", "Asc"); //ASC: A (top) to Z (bottom) || # (low to high) || Date (oldest to newest)
}
}
public void PullData(string sortExp, string sortDir)
{
query = "";
DataTable taskData = new DataTable();
connString = @""; //connectionstring
if (ddlTaskName.SelectedIndex > 0)
{
strClause += " AND CT.ATTR2739 = '" + ddlTaskName.SelectedItem.Text + "'";
}
else
{
strClause += " AND CT.ATTR2739 LIKE '%'";
}
if (ddlService.SelectedIndex > 0)
{
strClause += " AND CT.ATTR2846 = '" + ddlService.SelectedItem.Text + "'";
}
else
{
strClause += " AND CT.ATTR2846 LIKE '%'";
}
if (ddlStatus.SelectedIndex > 0)
{
strClause += " AND CT.ATTR2812 = '" + ddlStatus.SelectedItem.Text + "'";
}
else
{
strClause += " AND CT.ATTR2812 LIKE '%'";
}
if (ddlDueDate.SelectedIndex > 0)
{
strClause += " AND CONVERT(VARCHAR(14), CT.ATTR2752, 110) = '" + ddlDueDate.SelectedItem.Text + "'";
}
else
{
strClause += " AND CONVERT(VARCHAR(14), CT.ATTR2752, 110) LIKE '%'";
}
if (ddlOwner.SelectedIndex > 0)
{
strClause += " AND UA.REALNAME = '" + ddlOwner.SelectedItem.Text + "'";
}
else
{
strClause += " AND UA.REALNAME LIKE '%'";
}
if (ddlClient.SelectedIndex > 0)
{
strClause += " AND C.ATTR2815 = '" + ddlClient.SelectedItem.Text + "'";
}
else
{
strClause += " AND C.ATTR2815 LIKE '%'";
}
if (ddlSite.SelectedIndex > 0)
{
strClause += " AND SI.ATTR2819 = '" + ddlSite.SelectedItem.Text + "'";
}
else
{
strClause += " AND SI.ATTR2819 LIKE '%'";
}
if (ddlPractice.SelectedIndex > 0)
{
strClause += " AND PR.ATTR2817 = '" + ddlPractice.SelectedItem.Text + "'";
}
else
{
strClause += " AND PR.ATTR2817 LIKE '%'";
}
if (ddlProvider.SelectedIndex > 0)
{
strClause += " AND P.ATTR2919 = '" + ddlProvider.SelectedItem.Text + "'";
}
else
{
strClause += " AND P.ATTR2919 LIKE '%'";
}
if (ddlTaskName.SelectedIndex == 0 && ddlService.SelectedIndex == 0 && ddlStatus.SelectedIndex == 0 && ddlDueDate.SelectedIndex == 0 && ddlOwner.SelectedIndex == 0 && ddlClient.SelectedIndex == 0 && ddlSite.SelectedIndex == 0 && ddlPractice.SelectedIndex == 0 && ddlProvider.SelectedIndex == 0)
{
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0";
}
else
{
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0" + strClause;
}
using (SqlConnection conn = new SqlConnection(connString))
{
try
{
SqlCommand cmd = new SqlCommand(query, conn);
// create data adapter
SqlDataAdapter da = new SqlDataAdapter(query, conn);
// this will query your database and return the result to your datatable
DataSet myDataSet = new DataSet();
da.Fill(myDataSet);
myDataView = new DataView();
myDataView = myDataSet.Tables[0].DefaultView;
if (sortExp != string.Empty)
{
//MessageBox.Show(sortExp);
//MessageBox.Show(sortDir);
myDataView.Sort = string.Format("{0} {1}", sortExp, sortDir);
}
yourTasksGV.DataSource = myDataView;
yourTasksGV.DataBind();
TasksUpdatePanel.Update();
conn.Close();
}
catch (Exception ex)
{
string error = ex.Message;
}
}
}
protected void ddlTaskName_onSelectIndexChanged(object sender, EventArgs e)
{
PullData(ViewState["sortExp"].ToString(), ViewState["sortOrder"].ToString());
}
protected void ddlOwner_onSelectIndexChanged(object sender, EventArgs e)
{
PullData(ViewState["sortExp"].ToString(), ViewState["sortOrder"].ToString());
}
protected void ddlService_onSelectIndexChanged(object sender, EventArgs e)
{
PullData(ViewState["sortExp"].ToString(), ViewState["sortOrder"].ToString());
}
protected void ddlStatus_onSelectIndexChanged(object sender, EventArgs e)
{
PullData(ViewState["sortExp"].ToString(), ViewState["sortOrder"].ToString());
}
protected void ddlDueDate_onSelectIndexChanged(object sender, EventArgs e)
{
PullData(ViewState["sortExp"].ToString(), ViewState["sortOrder"].ToString());
}
protected void ddlClient_onSelectIndexChanged(object sender, EventArgs e)
{
PullData(ViewState["sortExp"].ToString(), ViewState["sortOrder"].ToString());
}
protected void ddlSite_onSelectIndexChanged(object sender, EventArgs e)
{
PullData(ViewState["sortExp"].ToString(), ViewState["sortOrder"].ToString());
}
protected void ddlPractice_onSelectIndexChanged(object sender, EventArgs e)
{
PullData(ViewState["sortExp"].ToString(), ViewState["sortOrder"].ToString());
}
protected void ddlProvider_onSelectIndexChanged(object sender, EventArgs e)
{
PullData(ViewState["sortExp"].ToString(), ViewState["sortOrder"].ToString());
}
public string sortOrder
{
get
{
if (ViewState["sortOrder"].ToString() == "Desc")
{
ViewState["sortOrder"] = "Asc";
}
else
{
ViewState["sortOrder"] = "Desc";
}
return ViewState["sortOrder"].ToString();
}
set
{
ViewState["sortOrder"] = value;
}
}
如何从过滤后的GridView中实现Dynamic DropDownList？
提前致谢。
1 个答案:
答案 0 :(得分：2)
你可以尝试一件事
- 在除了where子句 之外的私有var中查询所有下拉查询
- 您可以创建一个方法，为所有人创建where子句（下拉列表和gridview）
- 当数据绑定网格视图时，也会重新绑定下拉列表。
- 为on load方法 上方的select语句添加const变量
- 添加方法以获取where子句（上面的示例）
- 添加方法以获取网格视图的完整选择语句（上面的示例）
- 拉出所有代码，构建当前数据绑定中的where子句和网格视图的方法，并从刚刚添加的方法中获取select语句
- 添加用于为每个下拉列表构建不同的select语句的方法，并重新绑定它们，如上所示
注意：由于您正在使用附加数据绑定项，因此需要清除当前选项。替代方案就像是
select 'All' as [Task Name], '%' as value
union
SELECT DISTINCT [ATTR2739] as 'Task Name', [ATTR2739] as 'Value' FROM .....
如果你设置私人选择vars像
var _selectForADropDown = "select distinct ...... {0}"
然后您将过滤器应用于gridview，您也可以将过滤器应用于下拉列表的数据源
dataSourceForDropDown.SelectStatement = string.Format(selectForADropDown, MethodForTheWareClasues());
dropDownList.DataBind();
可能有所帮助的一件事
为查询的每个部分使用私有const变量，以便您可以重复使用
分解查询，以便where和from子句可用于gridview和下拉列表
private const string StrMainQuery = @"SELECT
CT.OBJECTID,
'http://checkthis.com/d=' + CAST(CT.OBJECTID AS VARCHAR) + '&classid=1224' 'Task Detail'
,LTRIM(RTRIM(CT.ATTR2846)) 'Service'
,LTRIM(RTRIM(CT.ATTR2812)) 'Status'
,CONVERT(VARCHAR(14), CT.ATTR2752, 110) 'Due Date'
,LTRIM(RTRIM(CT.ATTR2739)) 'Task Name'
,LTRIM(RTRIM(UA.REALNAME)) 'Owner'
,LTRIM(RTRIM(C.ATTR2815)) 'Client'
,RTRIM(SI.ATTR2819) 'Site'
,RTRIM(PR.ATTR2817) 'Practice'
,RTRIM(P.ATTR2919) 'Provider'";
private const string _from = @"
FROM HSI.RMOBJECTINSTANCE1224 CT
INNER JOIN HSI.RMOBJECTINSTANCE1232 S ON CT.ATTR2846 = S.ATTR2821
INNER JOIN HSI.USERACCOUNT UA ON S.FK2852 = (UA.USERNUM * -1)
LEFT JOIN HSI.RMOBJECTINSTANCE1251 PXC ON PXC.FK2924 = CT.OBJECTID
LEFT JOIN HSI.RMOBJECTINSTANCE1249 P ON PXC.FK2923 = P.OBJECTID
LEFT JOIN HSI.RMOBJECTINSTANCE1248 PRXC ON PRXC.FK2912 = CT.OBJECTID
LEFT JOIN HSI.RMOBJECTINSTANCE1230 PR ON PR.OBJECTID = PRXC.FK2911
LEFT JOIN HSI.RMOBJECTINSTANCE1247 SXC ON SXC.FK2908 = CT.OBJECTID
LEFT JOIN HSI.RMOBJECTINSTANCE1229 SI ON SI.OBJECTID = SXC.FK2907
INNER JOIN HSI.RMOBJECTINSTANCE1231 C ON CT.FK2927 = C.OBJECTID
";
private const string where = @"
WHERE CT.ACTIVESTATUS = 0
AND CT.ATTR2739 LIKE '{0}'
AND CT.ATTR2846 LIKE '{1}'
AND CT.ATTR2812 LIKE '{2}'
AND AND CONVERT(VARCHAR(14), CT.ATTR2752, 110) LIKE '{3}'
AND UA.REALNAME LIKE '{4}'
AND C.ATTR2815 LIKE '{5}'
AND SI.ATTR2819 LIKE '{6}'
AND PR.ATTR2817 LIKE '{7}'
AND P.ATTR2919 LIKE '{8}'
";
然后构建您的查询，例如：
private string GetWhere()
{
return string.Format(where,
ddlTaskName.SelectedValue,
ddlService.SelectedValue,
ddlStatus.SelectedValue,
ddlDueDate.SelectedValue,
ddlOwner.SelectedValue,
ddlClient.SelectedValue,
ddlSite.SelectedValue,
ddlPractice.SelectedValue,
ddlProvider.SelectedValue
);
}
private string GetGridSelect()
{
return string.Concat(StrMainQuery, _from, GetWhere());
}
然后你可以使用上面的union all方法为每个下拉列表构建查询，以保持＆＃34; all＆＃34;
private void ReloadDropDown()
{
dsPopulateProvider.SelectCommand = GetDropDownGuery();
ddlProvider.DataBind();
}
通过使用实体框架创建此选择的视图，您将获益良多。 会让所有项目的价值都变得非常简单，但我的回答是基于你目前正在做的事情。
我将采取的步骤进行这些更改
如果您有任何疑问，请告诉我，希望这有帮助
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