如何在itemtemplate事件中将数据绑定到gridview的{{1}}。我正在使用gridview，下面是该网格视图的代码。
RowDataBound在此，我想删除<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>
以将数据绑定到EVAl。取而代之的是我想查看天气
itemtemplate / dataset中是否存在所有列。使用的查询： -
Datatable执行上述查询后，我正在对c＃中的Activity列进行一个数据透视，这些列是“L＆amp; D Training％”，“Non Production％”，“Process Support％”，“Process Training％”，我在ItemTemplate上绑定的“生产％”，“系统停机时间百分比”，“总计百分比”。
答案 0 :(得分：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;
}
}
答案 1 :(得分：0)
在每个模板字段中尝试此操作。 将可见属性设置如下...... Visible ='＆lt;％＃！String.IsNullOrEmpty（Eval（“RoleId”）。ToString（））％＆gt;'
答案 2 :(得分：-1)
如果值为空，此代码可让您隐藏代码后面的特定单元格...
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
如果您想隐藏网格中的整个列，请按照以下步骤进行操作
1）在页面上为每个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）循环抛出每行的每一列的数据集并检查值是否存在并设置此属性，最后您具有值为true或false的属性，并且您可以找到需要在网格中显示的列。
3）然后你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