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如何将数据绑定到itemtemplateatgridview事件RowDataBound。我正在使用网格视图，下面是该网格视图的代码。

<asp:GridView ID="gvCoreUtilization" runat="server" BackColor="White" BorderColor="#cEcFcE"
                    BorderStyle="Solid" BorderWidth="1px" CellPadding="4" ForeColor="Black" OnRowCreated="grdPivot3_RowCreated"
                    AutoGenerateColumns="false" OnRowDataBound="grdCoreUtilization_RowDataBound">
                    <RowStyle BackColor="#F7F7DE" />
                    <FooterStyle BackColor="#CCCC99" />
                    <PagerStyle BackColor="#F7F7DE" ForeColor="Black" HorizontalAlign="Right" />
                    <SelectedRowStyle BackColor="#CE5D5A" Font-Bold="True" ForeColor="White" />
                    <HeaderStyle BackColor="#6B696B" Font-Bold="True" ForeColor="White" HorizontalAlign="Left" />
                    <AlternatingRowStyle BackColor="White" />
                    <Columns>
                        <asp:TemplateField>
                            <ItemTemplate>
                                <asp:Label ID="lblRoleID" Text='<%#Eval("RoleId") %>' runat="server" Visible="false"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField>
                            <HeaderTemplate>
                                SupervisorName
                            </HeaderTemplate>
                            <ItemTemplate>
                                <asp:Label ID="lblSupervisorName" Text='<%#Eval("SupervisorName") %>' runat="server"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField>
                            <HeaderTemplate>
                                UserECode
                            </HeaderTemplate>
                            <ItemTemplate>
                                <asp:Label ID="lblUserECode" Text='<%#Eval("UserECode") %>' runat="server"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField>
                            <HeaderTemplate>
                                UserName
                            </HeaderTemplate>
                            <ItemTemplate>
                                <asp:Label ID="lblUserName" Text='<%#Eval("UserName") %>' runat="server"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField>
                            <HeaderTemplate>
                                Designation
                            </HeaderTemplate>
                            <ItemTemplate>
                                <asp:Label ID="lblDesignation" Text='<%#Eval("Designation") %>' runat="server"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField>
                            <HeaderTemplate>
                                L & D Training%
                            </HeaderTemplate>
                            <ItemTemplate>
                                <asp:Label ID="lblLDTraining" Text='<%#Eval("L & D Training%") %>' runat="server"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField>
                            <HeaderTemplate>
                                Non Production%
                            </HeaderTemplate>
                            <ItemTemplate>
                                <asp:Label ID="lblNonProduction" Text='<%#Eval("Non Production%") %>' runat="server"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField>
                            <HeaderTemplate>
                                Process Support%
                            </HeaderTemplate>
                            <ItemTemplate>
                                <asp:Label ID="lblProcessSupport" Text='<%#Eval("Process Support%") %>' runat="server"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField>
                            <HeaderTemplate>
                                Process Training%
                            </HeaderTemplate>
                            <ItemTemplate>
                                <asp:Label ID="lblProcessTraining" Text='<%#Eval("Process Training%") %>' runat="server"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField>
                            <HeaderTemplate>
                                Production%
                            </HeaderTemplate>
                            <ItemTemplate>
                                <asp:Label ID="lblProduction" Text='<%#Eval("Production%") %>' runat="server"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField>
                            <HeaderTemplate>
                                System Downtime%
                            </HeaderTemplate>
                            <ItemTemplate>
                                <asp:Label ID="lblSystemDowntime" Text='<%#Eval("System Downtime%") %>' runat="server"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField>
                            <HeaderTemplate>
                                Grand Total%
                            </HeaderTemplate>
                            <ItemTemplate>
                                <asp:Label ID="lblGrandTotal" Text='<%#Eval("Grand Total%") %>' runat="server"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                    </Columns>
                </asp:GridView>

在这里，我想删除EVAl以将数据绑定到itemtemplate. 代替这个我想检查天气

  1. 如果所有 Column 都存在于dataset/Datatable或不存在于 Gridview 中。
  2. 如果所有 Column 都存在，则将该列绑定到适当的 Itemtemplate 。
  3. 如果所有列不存在，则仅显示和绑定可用列并隐藏不可用列。

使用的查询：-

Select RoleId,SuperVisorName,Userecode,Username,Designation,TimeSpent,ActivityName 
                                from CoreUtilizationForRole1 where roleid=3

执行上述查询后，我正在从 c# 对 Activity 列进行透视，这些列是“L & D Training%”、“Non Production%”、“Process Support%”、“Process Training%”、“Production%” “系统停机时间％”，“总计％”，我在 ItemTemplate 上绑定。

4

3 回答 3

0 
 if (e.Row.RowType == DataControlRowType.DataRow)
        {
            System.Web.UI.WebControls.Label lblRoleNo = (System.Web.UI.WebControls.Label)e.Row.FindControl("lblRoleId");
            System.Web.UI.WebControls.Label lblSupervisorName = (System.Web.UI.WebControls.Label)e.Row.FindControl("lblSupervisorName");
            System.Web.UI.WebControls.Label lblUserECode = (System.Web.UI.WebControls.Label)e.Row.FindControl("lblUserECode");
            System.Web.UI.WebControls.Label lblUserName = (System.Web.UI.WebControls.Label)e.Row.FindControl("lblUserName");
            System.Web.UI.WebControls.Label lblDesignation = (System.Web.UI.WebControls.Label)e.Row.FindControl("lblDesignation");
            System.Web.UI.WebControls.Label lblLDTraining = (System.Web.UI.WebControls.Label)e.Row.FindControl("lblLDTraining");
            System.Web.UI.WebControls.Label lblNonProduction = (System.Web.UI.WebControls.Label)e.Row.FindControl("lblNonProduction");
            System.Web.UI.WebControls.Label lblProcessSupport = (System.Web.UI.WebControls.Label)e.Row.FindControl("lblProcessSupport");
            System.Web.UI.WebControls.Label lblProcessTraining = (System.Web.UI.WebControls.Label)e.Row.FindControl("lblProcessTraining");
            System.Web.UI.WebControls.Label lblProduction = (System.Web.UI.WebControls.Label)e.Row.FindControl("lblProduction");
            System.Web.UI.WebControls.Label lblSystemDowntime = (System.Web.UI.WebControls.Label)e.Row.FindControl("lblSystemDowntime");
            System.Web.UI.WebControls.Label lblGrandTotal = (System.Web.UI.WebControls.Label)e.Row.FindControl("lblGrandTotal");

            //Checking weather Columns exist in the Pivot or not

            var dataRow = (DataRowView)e.Row.DataItem;
            var columnNameToCheck = "L & D Training%";
            var checkTraining = dataRow.Row.Table.Columns.Cast<DataColumn>().Any(x => x.ColumnName.Equals(columnNameToCheck, StringComparison.InvariantCultureIgnoreCase));
            if (checkTraining)
            {
                // Property available
                lblLDTraining.Text = (DataBinder.Eval(e.Row.DataItem, "L & D Training%")).ToString();
            }
            else
            {
                lblLDTraining.Visible = false;
            }


            var columnNonProduction = "Non Production%";
            var checkNonProduction = dataRow.Row.Table.Columns.Cast<DataColumn>().Any(x => x.ColumnName.Equals(columnNonProduction, StringComparison.InvariantCultureIgnoreCase));
            if (checkNonProduction)
            {
                // Property available
                lblNonProduction.Text = (DataBinder.Eval(e.Row.DataItem, "Non Production%")).ToString();
            }
            else
            {
                lblNonProduction.Visible = false;
            }

            var columnProcessSupport = "Process Support%";
            var checkProcessSupport = dataRow.Row.Table.Columns.Cast<DataColumn>().Any(x => x.ColumnName.Equals(columnProcessSupport, StringComparison.InvariantCultureIgnoreCase));
            if (checkProcessSupport)
            {
                // Property available
                lblProcessSupport.Text = (DataBinder.Eval(e.Row.DataItem, "Process Support%")).ToString();
            }
            else
            {
                lblProcessSupport.Visible = false;
            }

            var columnProcessTraining = "Process Training%";
            var checkProcesstraining = dataRow.Row.Table.Columns.Cast<DataColumn>().Any(x => x.ColumnName.Equals(columnProcessTraining, StringComparison.InvariantCultureIgnoreCase));
            if (checkProcesstraining)
            {
                // Property available
                lblProcessTraining.Text = (DataBinder.Eval(e.Row.DataItem, "Process Training%")).ToString();
            }
            else
            {
                lblProcessTraining.Visible = false;
            }

            var columnProduction = "Production%";
            var checkProduction = dataRow.Row.Table.Columns.Cast<DataColumn>().Any(x => x.ColumnName.Equals(columnProduction, StringComparison.InvariantCultureIgnoreCase));
            if (checkProduction)
            {
                // Property available
                lblProduction.Text = (DataBinder.Eval(e.Row.DataItem, "Production%")).ToString();
            }
            else
            {
                lblProduction.Visible = false;
            }


            var columnSystemDownTime = "System Downtime%";
            var checkSystemDownTime = dataRow.Row.Table.Columns.Cast<DataColumn>().Any(x => x.ColumnName.Equals(columnSystemDownTime, StringComparison.InvariantCultureIgnoreCase));
            if (checkSystemDownTime)
            {
                // Property available
                lblSystemDowntime.Text = (DataBinder.Eval(e.Row.DataItem, "System Downtime%")).ToString();
            }
            else
            {
                lblSystemDowntime.Visible = false;
            }

            var columnGrandTotal = "Grand Total%";
            var checkGrandTotal = dataRow.Row.Table.Columns.Cast<DataColumn>().Any(x => x.ColumnName.Equals(columnGrandTotal, StringComparison.InvariantCultureIgnoreCase));
            if (checkGrandTotal)
            {
                // Property available
                lblGrandTotal.Text = (DataBinder.Eval(e.Row.DataItem, "Grand Total%")).ToString();
            }
            else
            {
                lblGrandTotal.Visible = false;
            }



            var columnNameToCheckRoleID = "RoleId";
            var checkRoleID = dataRow.Row.Table.Columns.Cast<DataColumn>().Any(x => x.ColumnName.Equals(columnNameToCheckRoleID, StringComparison.InvariantCultureIgnoreCase));
            if (checkRoleID)
            {
                // Property available
                lblRoleNo.Text = (DataBinder.Eval(e.Row.DataItem, "RoleId")).ToString();
            }
            else
            {
                lblRoleNo.Visible = false;
            }

            var columnNameToCheckSupervisorName = "SupervisorName";
            var checkSupervisorName = dataRow.Row.Table.Columns.Cast<DataColumn>().Any(x => x.ColumnName.Equals(columnNameToCheckSupervisorName, StringComparison.InvariantCultureIgnoreCase));
            if (checkSupervisorName)
            {
                // Property available
                lblSupervisorName.Text = (DataBinder.Eval(e.Row.DataItem, "SupervisorName")).ToString();
            }
            else
            {
                lblSupervisorName.Visible = false;
            }


            var columnNameToCheckUserECode = "UserECode";
            var checkUserECode = dataRow.Row.Table.Columns.Cast<DataColumn>().Any(x => x.ColumnName.Equals(columnNameToCheckUserECode, StringComparison.InvariantCultureIgnoreCase));
            if (checkUserECode)
            {
                // Property available
                lblUserECode.Text = (DataBinder.Eval(e.Row.DataItem, "UserECode")).ToString();
            }
            else
            {
                lblUserECode.Visible = false;
            }

            var columnNameToCheckUserName = "UserName";
            var checkUserName = dataRow.Row.Table.Columns.Cast<DataColumn>().Any(x => x.ColumnName.Equals(columnNameToCheckUserName, StringComparison.InvariantCultureIgnoreCase));
            if (checkUserName)
            {
                // Property available
                lblUserName.Text = (DataBinder.Eval(e.Row.DataItem, "UserName")).ToString();
            }
            else
            {
                lblUserName.Visible = false;
            }

            var columnNameToCheckDesignation = "Designation";
            var checkDesignation = dataRow.Row.Table.Columns.Cast<DataColumn>().Any(x => x.ColumnName.Equals(columnNameToCheckDesignation, StringComparison.InvariantCultureIgnoreCase));
            if (checkDesignation)
            {
                // Property available
                lblDesignation.Text = (DataBinder.Eval(e.Row.DataItem, "Designation")).ToString();
            }
            else
            {
                lblDesignation.Visible = false;
            }


            //Changing color of the Pivot Data

            if (Convert.ToInt32(lblRoleNo.Text.ToString()) == 2)
            {
                e.Row.BackColor = System.Drawing.Color.GreenYellow;
            }
            if (Convert.ToInt32(lblRoleNo.Text.ToString()) == 3)
            {
                e.Row.BackColor = System.Drawing.Color.Cyan;
            }
            if (Convert.ToInt32(lblRoleNo.Text.ToString()) == 4)
            {
                e.Row.BackColor = System.Drawing.Color.Orange;
            }
            if (Convert.ToInt32(lblRoleNo.Text.ToString()) == 5)
            {
                e.Row.BackColor = System.Drawing.Color.Pink;
            }






        }
于 2013-05-03T10:19:31.863 回答
0

在您的每个模板字段上尝试此操作。设置 Visible 属性如下... Visible='<%# !String.IsNullOrEmpty(Eval("RoleId").ToString()) %>'

于 2013-05-03T13:14:26.223 回答
-1

如果值为空白，此代码可让您从代码中隐藏特定单元格...

Protected Sub gvCoreUtilization_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles gvCoreUtilization.RowDataBound
        Try
            If e.Row.RowType = DataControlRowType.DataRow Then

                Dim olblRoleID As New Label
                Dim olblSupervisorName As New Label
                Dim olblUserECode As New Label
                Dim olblUserName As New Label
                Dim olblDesignation As New Label
                Dim olblLDTraining As New Label
                Dim olblNonProduction As New Label
                Dim olblProcessSupport As New Label
                Dim olblProcessTraining As New Label
                Dim olblProduction As New Label
                Dim olblSystemDowntime As New Label
                Dim olblGrandTotal As New Label

                olblRoleID = CType(e.Row.FindControl("lblRoleID"), Label)
                olblSupervisorName = CType(e.Row.FindControl("lblSupervisorName"), Label)
                olblUserECode = CType(e.Row.FindControl("lblUserECode"), Label)
                olblUserName = CType(e.Row.FindControl("lblUserName"), Label)
                olblDesignation = CType(e.Row.FindControl("lblDesignation"), Label)
                olblLDTraining = CType(e.Row.FindControl("lblLDTraining"), Label)
                olblNonProduction = CType(e.Row.FindControl("lblNonProduction"), Label)
                olblProcessSupport = CType(e.Row.FindControl("lblProcessSupport"), Label)
                olblProcessTraining = CType(e.Row.FindControl("lblProcessTraining"), Label)
                olblProduction = CType(e.Row.FindControl("lblProduction"), Label)
                olblSystemDowntime = CType(e.Row.FindControl("lblSystemDowntime"), Label)
                olblGrandTotal = CType(e.Row.FindControl("lblGrandTotal"), Label)


                If CType(DataBinder.Eval(e.Row.DataItem, "RoleId"), String) = "" Then
                    olblRoleID.Visible = False
                Else
                    olblRoleID.Text = DataBinder.Eval(e.Row.DataItem, "RoleId")
                End If

                If CType(DataBinder.Eval(e.Row.DataItem, "SupervisorName"), String) = "" Then
                    olblSupervisorName.Visible = False
                Else
                    olblSupervisorName.Text = DataBinder.Eval(e.Row.DataItem, "SupervisorName")
                End If

                If CType(DataBinder.Eval(e.Row.DataItem, "UserECode"), String) = "" Then
                    olblUserECode.Visible = False
                Else
                    olblUserECode.Text = DataBinder.Eval(e.Row.DataItem, "UserECode")
                End If

                If CType(DataBinder.Eval(e.Row.DataItem, "UserName"), String) = "" Then
                    olblUserName.Visible = False
                Else
                    olblUserName.Text = DataBinder.Eval(e.Row.DataItem, "UserName")
                End If

                If CType(DataBinder.Eval(e.Row.DataItem, "Designation"), String) = "" Then
                    olblDesignation.Visible = False
                Else
                    olblDesignation.Text = DataBinder.Eval(e.Row.DataItem, "Designation")
                End If

                If CType(DataBinder.Eval(e.Row.DataItem, "L & D Training"), String) = "" Then
                    olblLDTraining.Visible = False
                Else
                    olblLDTraining.Text = DataBinder.Eval(e.Row.DataItem, "L & D Training")
                End If

                If CType(DataBinder.Eval(e.Row.DataItem, "Non Production"), String) = "" Then
                    olblNonProduction.Visible = False
                Else
                    olblNonProduction.Text = DataBinder.Eval(e.Row.DataItem, "Non Production")
                End If

                If CType(DataBinder.Eval(e.Row.DataItem, "Process Support"), String) = "" Then
                    olblProcessSupport.Visible = False
                Else
                    olblProcessSupport.Text = DataBinder.Eval(e.Row.DataItem, "Process Support")
                End If

                If CType(DataBinder.Eval(e.Row.DataItem, "Process Training"), String) = "" Then
                    olblProcessTraining.Visible = False
                Else
                    olblProcessTraining.Text = DataBinder.Eval(e.Row.DataItem, "Process Training")
                End If

                If CType(DataBinder.Eval(e.Row.DataItem, "Production"), String) = "" Then
                    olblProduction.Visible = False
                Else
                    olblProduction.Text = DataBinder.Eval(e.Row.DataItem, "Production")
                End If


                If CType(DataBinder.Eval(e.Row.DataItem, "System Downtime"), String) = "" Then
                    olblSystemDowntime.Visible = False
                Else
                    olblSystemDowntime.Text = DataBinder.Eval(e.Row.DataItem, "System Downtime")
                End If

                If CType(DataBinder.Eval(e.Row.DataItem, "Grand Total"), String) = "" Then
                    olblGrandTotal.Visible = False
                Else
                    olblGrandTotal.Text = DataBinder.Eval(e.Row.DataItem, "Grand Total")
                End If

            End If
        Catch ex As Exception
            General.LogException(ex)
        End Try
    End Sub

如果您想在网格中隐藏整列，请按照以下步骤操作

1）在页面上为每一列创建视图状态属性

 Property RoleId() As boolen
        Get
            If IsNothing(Me.ViewState("RoleId")) Then Me.ViewState("RoleId") = false
            Return CType(Me.ViewState("RoleId"), Boolean)
        End Get
        Set(ByVal value As Boolean)
            Me.ViewState("RoleId") = value
        End Set
    End Property

2）为每一行的每一列循环抛出数据集并检查值是否存在并设置此属性，最后你有值为true或false的属性，你可以找到需要在网格中显示的列。

3）然后您可以轻松隐藏网格列。

if Me.RoleId= True then
'Write code to Display
else
'Write code to Hide
end if
于 2013-05-03T09:36:09.790 回答