我正在使用ObjectDataSource来绑定和更新网格。它工作正常并且数据库中的记录正在更新但是在更新后，它仍然在网格中显示相同的记录（Previous Values）。请帮助我，我会这样做，以便在数据库更新后，网格将显示更新的记录，而不是旧记录。如果有任何人找到解决方案，请修改我的代码。
先谢谢。
请找到以下代码。
GridView代码： -
<asp:Panel ID="pnlGrdShift" runat="server" ScrollBars="Auto" Width="900px" Height="520px" CssClass="srcColor">
<cc1:GridView ID="gvShift" runat="server" AutoGenerateColumns="False" AllowSorting="True"
CssClass="grid"
OnDataBound="gvShift_DataBound"
DataSourceID="odsShiftDetails"
AllowPaging="True"
ShowFooter="false"
onrowcancelingedit="gvShift_RowCancelingEdit"
onrowcommand="gvShift_RowCommand"
onrowdeleting="gvShift_RowDeleting"
onrowediting="gvShift_RowEditing"
onrowupdating="gvShift_RowUpdating"
OnSelectedIndexChanged="gvShift_SelectedIndexChanged"
OnRowDataBound="gvShift_RowDataBound">
<AlternatingRowStyle CssClass="altrowstyle" />
<HeaderStyle CssClass="headerstyle" />
<RowStyle CssClass="rowstyle" Wrap="false" />
<EmptyDataRowStyle BackColor="#edf5ff" Height="300px" VerticalAlign="Middle" HorizontalAlign="Center" />
<EmptyDataTemplate >
No Records Found
</EmptyDataTemplate>
<Columns>
<asp:TemplateField HeaderText="E Code" SortExpression="userecode" HeaderStyle-Font-Bold="true" HeaderStyle-Font-Names="Calibre" HeaderStyle-ForeColor="White">
<ItemTemplate>
<asp:Label ID="lblUserECode" runat="server" Text='<%#Eval("userecode") %>' CssClass="GridContent" />
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="lblEditUserECode" runat="server" Text='<%#Eval("userecode") %>' style="width:50px;" CssClass="GridContent" />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="User Name" SortExpression="username" HeaderStyle-Font-Bold="true" HeaderStyle-Font-Names="Calibre" HeaderStyle-ForeColor="White">
<ItemTemplate>
<asp:Label ID="lblUserName" runat="server" Text='<%#Eval("username") %>' CssClass="GridContent" />
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="lblEditUserName" runat="server" Text='<%#Eval("username") %>' style="width:100px;" CssClass="GridContent"/>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Shift Start Time" SortExpression="ShiftStartTime" HeaderStyle-Font-Bold="true" HeaderStyle-Font-Names="Calibre" HeaderStyle-ForeColor="White">
<ItemTemplate>
<asp:Label ID="lblShiftStartTime" runat="server" Text='<%#Eval("ShiftStartTime") %>' CssClass="GridContent"/>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="ddlShiftStartTime" runat="server" Text='<%#Eval("ShiftStartTime") %>' style="width:65px;" CssClass="GridContent" />
<asp:RegularExpressionValidator ID="RegularExpValidatorddlShiftStartTime" runat="server" ControlToValidate="ddlShiftStartTime" ValidationExpression="^([0-9]|0[0-9]|1[0-9]|2[0-3]):[0-5][0-9]$" ErrorMessage="*" Font-Bold="true" ForeColor="Red" ToolTip="Must be in HH:MM" />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Shift End Time" SortExpression="ShiftEndTime" HeaderStyle-Font-Bold="true" HeaderStyle-Font-Names="Calibre" HeaderStyle-ForeColor="White">
<ItemTemplate>
<asp:Label ID="lblShiftEndTime" runat="server" Text='<%#Eval("ShiftEndTime") %>' CssClass="GridContent" />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="ddlShiftEndTime" runat="server" Text='<%#Eval("ShiftEndTime") %>' style="width:65px;" CssClass="GridContent" />
<asp:RegularExpressionValidator ID="RegularExpValidatorddlShiftEndTime" runat="server" ControlToValidate="ddlShiftEndTime" ValidationExpression="^([0-9]|0[0-9]|1[0-9]|2[0-3]):[0-5][0-9]$" ErrorMessage="*" Font-Bold="true" ForeColor="Red" ToolTip="Must be in HH:MM" />
</EditItemTemplate>
</asp:TemplateField>
<%--<asp:BoundField DataField="ShiftEndTIme" HeaderText="Shift End Time" SortExpression="ShiftEndTIme"/>--%>
<asp:TemplateField HeaderText="Saturday Shift Start Time" SortExpression="WeekendShiftStartTime" HeaderStyle-Font-Bold="true" HeaderStyle-Font-Names="Calibre" HeaderStyle-ForeColor="White">
<ItemTemplate>
<asp:Label ID="lblWeekendShiftStartTime" runat="server" Text='<%#Eval("WeekendShiftStartTime") %>' CssClass="GridContent" />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="ddlWeekendShiftStartTime" runat="server" Text='<%#Eval("WeekendShiftStartTime") %>' style="width:65px;" CssClass="GridContent" />
<asp:RegularExpressionValidator ID="RegularExpValidatorddlWeekendShiftStartTime" runat="server" ControlToValidate="ddlWeekendShiftStartTime" ValidationExpression="^([0-9]|0[0-9]|1[0-9]|2[0-3]):[0-5][0-9]$" ErrorMessage="*" Font-Bold="true" ForeColor="Red" ToolTip="Must be in HH:MM" />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Saturday Shift End Time" SortExpression="weekendshiftendtime" HeaderStyle-Font-Bold="true" HeaderStyle-Font-Names="Calibre" HeaderStyle-ForeColor="White">
<ItemTemplate>
<asp:Label ID="lblWeekendShiftEndTime" runat="server" Text='<%#Eval("weekendshiftendtime") %>' CssClass="GridContent"/>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="ddlWeekendShiftEndTime" runat="server" Text='<%#Eval("weekendshiftendtime") %>' style="width:65px;" CssClass="GridContent" />
<asp:RegularExpressionValidator ID="RegularExpValidatorddlWeekendShiftEndTime" runat="server" ControlToValidate="ddlWeekendShiftEndTime" ValidationExpression="^([0-9]|0[0-9]|1[0-9]|2[0-3]):[0-5][0-9]$" ErrorMessage="*" Font-Bold="true" ForeColor="Red" ToolTip="Must be in HH:MM" />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField ShowHeader="False" >
<EditItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="True" CommandName="Update" Text="Update" ForeColor="White"></asp:LinkButton>
<asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancel" ForeColor="White"></asp:LinkButton>
</EditItemTemplate>
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Edit" Text="Edit" ForeColor="White"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<PagerTemplate >
<table width="100%" >
<tr>
<td style="text-align: left">
Page Size:
<asp:DropDownList ID="ddPageSize" runat="server" EnableViewState="true" OnSelectedIndexChanged="ddPageSize_SelectedIndexChanged" AutoPostBack="true" style="width:50px;">
<asp:ListItem Text="10" ></asp:ListItem>
<asp:ListItem Text="20" ></asp:ListItem>
<asp:ListItem Text="30" ></asp:ListItem>
<asp:ListItem Text="40" ></asp:ListItem>
<asp:ListItem Text="50" ></asp:ListItem>
</asp:DropDownList>
</td>
<td style="text-align: right">
<asp:Label ID="lblPageCount" runat="server"></asp:Label>
</td>
</tr>
</table>
</PagerTemplate>
</cc1:GridView>
</asp:Panel>
<asp:ObjectDataSource ID="odsShiftDetails" runat="server"
SelectMethod="GetShiftInfoSortedPage" TypeName="EQ.DAL.ShiftInfoDB"
EnablePaging="True" SelectCountMethod="GetShiftInfoCount"
SortParameterName="sortExpression" UpdateMethod="UpdateShift">
<UpdateParameters>
<asp:Parameter Name="sql"/>
</UpdateParameters>
<SelectParameters>
<asp:ControlParameter ControlID="hfSearchCriteria" Name="searchCriteria" Direction="Input" />
</SelectParameters>
</asp:ObjectDataSource>
更新后面的代码： -
protected void gvShift_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
try
{
TextBox txtShiftStartTime = (TextBox)gvShift.Rows[e.RowIndex].FindControl("ddlShiftStartTime");
TextBox txtShiftEndTime = (TextBox)gvShift.Rows[e.RowIndex].FindControl("ddlShiftEndTime");
TextBox txtWeekendShiftStartTime = (TextBox)gvShift.Rows[e.RowIndex].FindControl("ddlWeekendShiftStartTime");
TextBox txtWeekendShiftEndTime = (TextBox)gvShift.Rows[e.RowIndex].FindControl("ddlWeekendShiftEndTime");
Label lblUserecode = (Label)gvShift.Rows[e.RowIndex].FindControl("lblEditUserECode");
string userecode = lblUserecode.Text.ToString();
string _ShiftStart = txtShiftStartTime.Text.ToString();
string _ShiftEnd = txtShiftEndTime.Text.ToString();
string _WeekendShiftStart = txtWeekendShiftStartTime.Text.ToString();
string _WeekendShiftend = txtWeekendShiftEndTime.Text.ToString();
EmployeeQuotientCL.Entities.ConfigurationVariables _configVariables = new ConfigurationVariables();
string databaseConnectionString = _configVariables.ConnectionString;
SqlConnection sqlConnection = null;
if (((databaseConnectionString + string.Empty) != string.Empty))
{
DBConnect dbConnect = new DBConnect(_configVariables.ConnectionString);
sqlConnection = dbConnect.SQLConnection;
SqlCommand cmd = new SqlCommand();
cmd.Connection = sqlConnection;
string sql=null;
cmd.CommandText = "UPDATE UserInfo SET ShiftStartTime ='" + _ShiftStart + "',ShiftEndTime='" + _ShiftEnd.ToString() + "',Weekendshiftstarttime='" + _WeekendShiftStart.ToString() + "',Weekendshiftendtime='" + _WeekendShiftend.ToString() + "' WHERE UserECode=" + userecode.ToString();
odsShiftDetails.UpdateParameters["sql"].DefaultValue = cmd.CommandText;
odsShiftDetails.Update();
}
}
catch (Exception ex)
{
}
}
ShiftInfoDBCache.cs
public class ShiftInfoDB
{
private const string SHIFTINFO_CACHE_KEY = "SHIFTINFO_DATA";
private const string SHIFTINFOCOUNT_CACHE_KEY = "SHIFTINFO_COUNT";
static EmployeeQuotientCL.Entities.ConfigurationVariables _config = new EmployeeQuotientCL.Entities.ConfigurationVariables();
static int _SupervisorecodeforShift;
public static DataTable GetShiftInfoSortedPage(int maximumRows, int startRowIndex, string sortExpression, string searchCriteria)
{
_SupervisorecodeforShift=EmployeeQuotientCL.Entities.StaticGlobalValue.UserId;
if (string.IsNullOrEmpty(sortExpression))
sortExpression = "userecode";
try
{
if (ShiftInfoDBCache.isRecordsCached(SHIFTINFO_CACHE_KEY))
return ShiftInfoDBCache.GetData(SHIFTINFO_CACHE_KEY, startRowIndex + 1, maximumRows, sortExpression, searchCriteria);
SqlConnection dbConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["DBConnectionString"].ToString());
string sql = "select distinct MP.userecode,UI.username,UI.ShiftStartTime,UI.ShiftEndTime,UI.WeekendShiftStartTime,UI.weekendshiftendtime from AssociateSupervisorMapping MP inner join UserInfo UI on MP.Userecode=UI.Userecode where supervisorecode=" + _SupervisorecodeforShift.ToString();
SqlCommand custCommand = new SqlCommand(sql, dbConnection);
custCommand.CommandType = CommandType.Text;
SqlDataAdapter ad = new SqlDataAdapter(custCommand);
DataTable dtCustomers = new DataTable();
ad.Fill(dtCustomers);
dbConnection.Close();
//Cache records
ShiftInfoDBCache.Add(SHIFTINFO_CACHE_KEY, dtCustomers);
}
catch (Exception e)
{
throw;
}
return ShiftInfoDBCache.GetData(SHIFTINFO_CACHE_KEY, startRowIndex + 1, maximumRows, sortExpression, null);
}
public static int GetShiftInfoCount(string searchCriteria)
{
_SupervisorecodeforShift=EmployeeQuotientCL.Entities.StaticGlobalValue.UserId;
int custCount = 0;
try
{
SqlConnection dbConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["DBConnectionString"].ToString());
string sql = "select Count(*)from (select distinct MP.userecode,UI.username,UI.ShiftStartTime,UI.ShiftEndTime,UI.WeekendShiftStartTime,UI.weekendshiftendtime from AssociateSupervisorMapping MP inner join UserInfo UI on MP.Userecode=UI.Userecode where supervisorecode="+_SupervisorecodeforShift.ToString()+")AS internalQuery";
if (!string.IsNullOrEmpty(searchCriteria))
sql = sql + " where " + searchCriteria;
SqlCommand sqlCommand = new SqlCommand(sql, dbConnection);
sqlCommand.Connection = dbConnection;
dbConnection.Open();
sqlCommand.CommandType = CommandType.Text;
custCount = Convert.ToInt32(sqlCommand.ExecuteScalar());
dbConnection.Close();
if (ShiftInfoDBCache.Get(SHIFTINFOCOUNT_CACHE_KEY) != null)
{
// remove customers data if customers count has changed since first cache
if (Convert.ToInt32(ShiftInfoDBCache.Get(SHIFTINFOCOUNT_CACHE_KEY)) != custCount && string.IsNullOrEmpty(searchCriteria))
{
ShiftInfoDBCache.Remove(SHIFTINFO_CACHE_KEY);
}
}
if (string.IsNullOrEmpty(searchCriteria))
ShiftInfoDBCache.Add(SHIFTINFOCOUNT_CACHE_KEY, custCount);
}
catch (Exception e)
{
throw;
}
return custCount;
}
public static void UpdateShift(string sql)
{
SqlConnection dbConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["DBConnectionString"].ToString());
SqlCommand sqlCommand = new SqlCommand(sql, dbConnection);
sqlCommand.CommandType=CommandType.Text;
sqlCommand.CommandText=sql;
dbConnection.Open();
sqlCommand.Connection = dbConnection;
//sqlCommand.CommandType = CommandType.Text;
sqlCommand.ExecuteNonQuery();
dbConnection.Close();
}
}
ShiftInfoDBCache.cs
public class ShiftInfoDBCache
{
public static bool isRecordsCached(string cacheKey)
{
Cache dbCache = HttpContext.Current.Cache;
if (dbCache[cacheKey] == null)
return false;
return true;
}
public static void Add(string key, object value)
{
Cache dbCache = HttpContext.Current.Cache;
dbCache.Add(key, value, null, Cache.NoAbsoluteExpiration, Cache.NoSlidingExpiration, CacheItemPriority.Default, null);
}
public static object Get(string key)
{
Cache dbCache = HttpContext.Current.Cache;
return dbCache[key];
}
public static object Remove(string key)
{
Cache dbCache = HttpContext.Current.Cache;
return dbCache.Remove(key);
}
public static DataTable GetData(string cacheKey, int startRowIndex, int maximumRowNumber, string sortExpression, string searchCriteria)
{
Cache dbCache = HttpContext.Current.Cache;
if (dbCache[cacheKey] != null)
{
DataTable dtble = dbCache[cacheKey] as DataTable;
DataTable dtblNew = dtble.Clone();
DataRow[] rows = dtble.Select(searchCriteria, sortExpression);
if (rows != null)
{
if (rows.Count() > 0)
{
if (startRowIndex > rows.Count())
{
startRowIndex = rows.Count() - maximumRowNumber;
if (startRowIndex < 0)
{
startRowIndex = 1;
maximumRowNumber = rows.Count();
}
}
for (int i = startRowIndex - 1; i < (startRowIndex + maximumRowNumber - 1); i++)
{
if (i < rows.Count())
dtblNew.ImportRow(rows[i]);
}
return dtblNew;
}
}
return dtblNew;
}
return null;
}
}
答案 0 :(得分：0)
public static void UpdateShift(string sql)
{
SqlConnection dbConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["DBConnectionString"].ToString());
SqlCommand sqlCommand = new SqlCommand(sql, dbConnection);
sqlCommand.CommandType=CommandType.Text;
sqlCommand.CommandText=sql;
dbConnection.Open();
sqlCommand.Connection = dbConnection;
//sqlCommand.CommandType = CommandType.Text;
sqlCommand.ExecuteNonQuery();
dbConnection.Close();
ShiftInfoDBCache.Remove(SHIFTINFO_CACHE_KEY);
}
在UpdateShift中修改ShiftInfoDB.cs方法解决了我的问题。