如何根据其他DropDownList中选择多个DropDownList的变化 [英] How to make multiple DropDownList change based on selection from other DropDownList
本文介绍了如何根据其他DropDownList中选择多个DropDownList的变化的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有我使用到的Filder以下ASP.net code我的 GridView控件：
I have the following ASP.net code which I am using to filder my GridView:
<asp:UpdatePanel runat="server" ClientIDMode="Static" ID="TasksUpdatePanel" UpdateMode="Conditional">
<ContentTemplate>
<table style="width: 100%; padding: 0; margin: 0; border: 0; border-spacing: 0; border-collapse: separate;" class="GridviewTable">
<tr>
<td style="width: 25%;">
<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) WHERE CT.ACTIVESTATUS = 0"></asp:SqlDataSource>
</td>
<td style="width: 20%;">
<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) WHERE CT.ACTIVESTATUS = 0"></asp:SqlDataSource>
</td>
<td style="width: 11%;">
<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) WHERE CT.ACTIVESTATUS = 0"></asp:SqlDataSource>
</td>
<td style="width: 14%;">
<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) WHERE CT.ACTIVESTATUS = 0"></asp:SqlDataSource>
</td>
<td style="width: 15%;">
<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) WHERE CT.ACTIVESTATUS = 0"></asp:SqlDataSource>
</td>
<td style="width: 15%;">
<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 [ATTR2799] '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) 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-Width="25%" ItemStyle-CssClass="taskTableColumn" />
<asp:BoundField DataField="Service" HeaderText="Service" SortExpression="Service" ItemStyle-Width="20%" ItemStyle-CssClass="taskTableColumn" />
<asp:BoundField DataField="Status" HeaderText="Status" SortExpression="Status" ItemStyle-Width="10%" ItemStyle-CssClass="taskTableColumn" />
<asp:BoundField DataField="Due Date" HeaderText="Due Date" SortExpression="Due Date" ItemStyle-Width="15%" ItemStyle-CssClass="taskTableColumn" />
<asp:BoundField DataField="Owner" HeaderText="Owner" SortExpression="Owner" ItemStyle-Width="15%" ItemStyle-CssClass="taskTableColumn" />
<asp:BoundField DataField="Client" HeaderText="Client" SortExpression="Client" ItemStyle-Width="15%" ItemStyle-CssClass="taskTableColumn" />
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
我的code-落后于上述ASP.net页面：
My code-behind for the ASP.net page above:
protected void ddlTaskName_onSelectIndexChanged(object sender, EventArgs e)
{
string query = "";
string strText = ddlTaskName.SelectedItem.Text;
ddlService.SelectedIndex = 0;
ddlStatus.SelectedIndex = 0;
ddlDueDate.SelectedIndex = 0;
ddlClient.SelectedIndex = 0;
ddlOwner.SelectedIndex = 0;
//MessageBox.Show(strText);
DataTable taskData = new DataTable();
if (strText == "All")
{
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0";
}
else
{
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0 AND CT.ATTR2739 = '" + strText + "'";
}
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);
DataView myDataView = new DataView();
myDataView = myDataSet.Tables[0].DefaultView;
if (ViewState["sortExp"].ToString() != string.Empty)
{
//MessageBox.Show(sortExp);
//MessageBox.Show(sortDir);
myDataView.Sort = string.Format("{0} {1}", ViewState["sortExp"].ToString(), ViewState["sortOrder"].ToString());
}
yourTasksGV.DataSource = myDataView;
yourTasksGV.DataBind();
TasksUpdatePanel.Update();
conn.Close();
}
catch (Exception ex)
{
string error = ex.Message;
}
}
}
protected void ddlOwner_onSelectIndexChanged(object sender, EventArgs e)
{
string query = "";
string strText = ddlOwner.SelectedItem.Text;
ddlService.SelectedIndex = 0;
ddlStatus.SelectedIndex = 0;
ddlDueDate.SelectedIndex = 0;
ddlClient.SelectedIndex = 0;
ddlTaskName.SelectedIndex = 0;
//MessageBox.Show(strText);
DataTable taskData = new DataTable();
if (strText == "All")
{
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0";
}
else
{
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0 AND UA.REALNAME = '" + strText + "'";
}
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);
DataView myDataView = new DataView();
myDataView = myDataSet.Tables[0].DefaultView;
if (ViewState["sortExp"].ToString() != string.Empty)
{
//MessageBox.Show(sortExp);
//MessageBox.Show(sortDir);
myDataView.Sort = string.Format("{0} {1}", ViewState["sortExp"].ToString(), ViewState["sortOrder"].ToString());
}
yourTasksGV.DataSource = myDataView;
yourTasksGV.DataBind();
TasksUpdatePanel.Update();
conn.Close();
}
catch (Exception ex)
{
string error = ex.Message;
}
}
}
protected void ddlService_onSelectIndexChanged(object sender, EventArgs e)
{
string query = "";
string strText = ddlService.SelectedItem.Text;
ddlTaskName.SelectedIndex = 0;
ddlStatus.SelectedIndex = 0;
ddlDueDate.SelectedIndex = 0;
ddlClient.SelectedIndex = 0;
ddlOwner.SelectedIndex = 0;
//MessageBox.Show(strText);
DataTable taskData = new DataTable();
if (strText == "All")
{
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0";
}
else
{
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0 AND CT.ATTR2846 = '" + strText + "'";
}
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);
DataView myDataView = new DataView();
myDataView = myDataSet.Tables[0].DefaultView;
if (ViewState["sortExp"].ToString() != string.Empty)
{
//MessageBox.Show(sortExp);
//MessageBox.Show(sortDir);
myDataView.Sort = string.Format("{0} {1}", ViewState["sortExp"].ToString(), ViewState["sortOrder"].ToString());
}
yourTasksGV.DataSource = myDataView;
yourTasksGV.DataBind();
TasksUpdatePanel.Update();
conn.Close();
}
catch (Exception ex)
{
string error = ex.Message;
}
}
}
protected void ddlStatus_onSelectIndexChanged(object sender, EventArgs e)
{
string query = "";
string strText = ddlStatus.SelectedItem.Text;
ddlService.SelectedIndex = 0;
ddlTaskName.SelectedIndex = 0;
ddlDueDate.SelectedIndex = 0;
ddlClient.SelectedIndex = 0;
ddlOwner.SelectedIndex = 0;
//MessageBox.Show(strText);
DataTable taskData = new DataTable();
if (strText == "All")
{
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0";
}
else
{
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0 AND CT.ATTR2812 = '" + strText + "'";
}
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);
DataView myDataView = new DataView();
myDataView = myDataSet.Tables[0].DefaultView;
if (ViewState["sortExp"].ToString() != string.Empty)
{
//MessageBox.Show(sortExp);
//MessageBox.Show(sortDir);
myDataView.Sort = string.Format("{0} {1}", ViewState["sortExp"].ToString(), ViewState["sortOrder"].ToString());
}
yourTasksGV.DataSource = myDataView;
yourTasksGV.DataBind();
TasksUpdatePanel.Update();
conn.Close();
}
catch (Exception ex)
{
string error = ex.Message;
}
}
}
protected void ddlDueDate_onSelectIndexChanged(object sender, EventArgs e)
{
string query = "";
string strText = ddlDueDate.SelectedItem.Text;
ddlService.SelectedIndex = 0;
ddlStatus.SelectedIndex = 0;
ddlTaskName.SelectedIndex = 0;
ddlClient.SelectedIndex = 0;
ddlOwner.SelectedIndex = 0;
//MessageBox.Show(strText);
DataTable taskData = new DataTable();
if (strText == "All")
{
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0";
}
else
{
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0 AND CONVERT(VARCHAR(14), CT.ATTR2752, 110) = '" + strText + "'";
}
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);
DataView myDataView = new DataView();
myDataView = myDataSet.Tables[0].DefaultView;
if (ViewState["sortExp"].ToString() != string.Empty)
{
//MessageBox.Show(sortExp);
//MessageBox.Show(sortDir);
myDataView.Sort = string.Format("{0} {1}", ViewState["sortExp"].ToString(), ViewState["sortOrder"].ToString());
}
yourTasksGV.DataSource = myDataView;
yourTasksGV.DataBind();
TasksUpdatePanel.Update();
conn.Close();
}
catch (Exception ex)
{
string error = ex.Message;
}
}
}
protected void ddlClient_onSelectIndexChanged(object sender, EventArgs e)
{
string query = "";
string strText = ddlClient.SelectedItem.Text;
ddlService.SelectedIndex = 0;
ddlStatus.SelectedIndex = 0;
ddlDueDate.SelectedIndex = 0;
ddlTaskName.SelectedIndex = 0;
ddlOwner.SelectedIndex = 0;
//MessageBox.Show(strText);
DataTable taskData = new DataTable();
if (strText == "All")
{
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0";
}
else
{
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0 AND CT.ATTR2799 = '" + strText + "'";
}
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);
DataView myDataView = new DataView();
myDataView = myDataSet.Tables[0].DefaultView;
if (ViewState["sortExp"].ToString() != string.Empty)
{
//MessageBox.Show(sortExp);
//MessageBox.Show(sortDir);
myDataView.Sort = string.Format("{0} {1}", ViewState["sortExp"].ToString(), ViewState["sortOrder"].ToString());
}
yourTasksGV.DataSource = myDataView;
yourTasksGV.DataBind();
TasksUpdatePanel.Update();
conn.Close();
}
catch (Exception ex)
{
string error = ex.Message;
}
}
}
它执行 GridView控件的过滤功能：
public void PullData(string sortExp, string sortDir)
{
string query = "";
DataTable taskData = new DataTable();
connString = ""; //the connection string is here
if (ddlTaskName.SelectedIndex == 0 && ddlService.SelectedIndex == 0 && ddlStatus.SelectedIndex == 0 && ddlDueDate.SelectedIndex == 0 && ddlOwner.SelectedIndex == 0 && ddlClient.SelectedIndex == 0)
{
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0";
}
else if (ddlTaskName.SelectedIndex > 0)
{
string strText = ddlTaskName.SelectedItem.Text;
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0 AND CT.ATTR2739 = '" + strText + "'";
}
else if (ddlService.SelectedIndex > 0)
{
string strText = ddlService.SelectedItem.Text;
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0 AND CT.ATTR2846 = '" + strText + "'";
}
else if (ddlStatus.SelectedIndex > 0)
{
string strText = ddlStatus.SelectedItem.Text;
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0 AND CT.ATTR2812 = '" + strText + "'";
}
else if (ddlDueDate.SelectedIndex > 0)
{
string strText = ddlDueDate.SelectedItem.Text;
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0 AND CONVERT(VARCHAR(14), CT.ATTR2752, 110) = '" + strText + "'";
}
else if (ddlOwner.SelectedIndex > 0)
{
string strText = ddlClient.SelectedItem.Text;
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0 AND UA.REALNAME = '" + strText + "'";
}
else if (ddlClient.SelectedIndex > 0)
{
string strText = ddlClient.SelectedItem.Text;
query = strMainQuery + " WHERE CT.ACTIVESTATUS = 0 AND CT.ATTR2799 = '" + strText + "'";
}
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);
DataView 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();
conn.Close();
}
catch (Exception ex)
{
string error = ex.Message;
}
}
}
我想要做的是，当用户选择一个选项的的DropDownList 其他的DropDownList 将更改到值的过滤 GridView控件而是因为他们的数据源很难$ C $光盘，我不能够做到这一点。
What I want to do is, when a user choose an option from one of the DropDownList the other DropDownList will change to the values for the filtered GridView but because their DataSource is hard coded in, I am not able to do it.
如何过滤每个的DropDownList 从过滤 GridView控件一旦任何
How do I filter each of the DropDownList from the filtered GridView once any of the DropDownList selection has been made?
推荐答案
虽然我会彻底建议你使用的参数化查询的，这应该为你（稍作调整工作，或许我不能看到你的$ C $的全部C，当然）
While I'd thoroughly advise you to use parameterized queries, this should work for you (perhaps with minor adjustments as I can't see the entirety of your code, of course)
这个方法应该产生一个有效的where子句。您可以在您的code-背后的各种 OnSelectedIndexChanged 方法使用此方法prevent大量复制/粘贴code
This method should generate a valid where clause. You can use this method in the various OnSelectedIndexChanged methods in your code-behind to prevent a lot of copy/pasted code.
public string GenerateWhereClause()
{
List<String> conditions = new List<String>();
conditions.Add("(CT.ACTIVESTATUS = 0)");
if (ddlTaskName.SelectedIndex > 0)
{
string strText = ddlTaskName.SelectedItem.Text;
conditions.Add(String.Format("(CT.ATTR2739 = '{0}')", strText));
}
if (ddlService.SelectedIndex > 0)
{
string strText = ddlService.SelectedItem.Text;
conditions.Add(String.Format("(CT.ATTR2846 = '{0}')", strText));
}
if (ddlStatus.SelectedIndex > 0)
{
string strText = ddlStatus.SelectedItem.Text;
conditions.Add(String.Format("(CT.ATTR2812 = '{0}')", strText));
}
if (ddlDueDate.SelectedIndex > 0)
{
string strText = ddlDueDate.SelectedItem.Text;
conditions.Add(String.Format("(CONVERT(VARCHAR(14), CT.ATTR2752, 110) = '{0}')", strText));
}
if (ddlOwner.SelectedIndex > 0)
{
string strText = ddlOwner.SelectedItem.Text;
conditions.Add(String.Format("(UA.REALNAME = '{0}')", strText));
}
if (ddlClient.SelectedIndex > 0)
{
string strText = ddlClient.SelectedItem.Text;
conditions.Add(String.Format("(CT.ATTR2799 = '{0}')", strText));
}
// You can add additional filters here. This isn't the cleanest way of doing it, but it's fairly quick and easy as long as you don't intend to add many more filters.
string conditionsJoined = String.Join(" AND ", conditions);
string whereClause = String.Format(" WHERE {0}", conditionsJoined);
return whereClause;
}
这是你的 PullData 法的修改版本。 （请注意，我只是改变了它创造了条件语句的顶部。
And this is a modified version of your PullData method. (note that I've only changed the top portion where it creates the conditional statement.
public void PullData(string sortExp, string sortDir)
{
string query = String.Format("{0}{1}", strMainQuery, GenerateWhereClause());
DataTable taskData = new DataTable();
connString = ""; //the connection string is here
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);
DataView myDataView = new DataView();
myDataView = myDataSet.Tables[0].DefaultView;
if (sortExp != string.Empty)
{
myDataView.Sort = string.Format("{0} {1}", sortExp, sortDir);
}
yourTasksGV.DataSource = myDataView;
yourTasksGV.DataBind();
conn.Close();
}
catch (Exception ex)
{
string error = ex.Message;
}
}
}
这篇关于如何根据其他DropDownList中选择多个DropDownList的变化的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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