Listview根据单元格值更改颜色 [英] Listview change color based on cell value

问题描述

我有一个列表视图，我想根据单元格的值更改行背景色.

我可以修改每个项目的前色属性，但是该行没有运气.

I have a listview and I want to change the row background color based on a cells value.

I am able to modify the forecolor properties of each item but I am having no luck with the row.

Private Sub ListViewTraining_ItemDataBound(sender As Object, e As System.Web.UI.WebControls.ListViewItemEventArgs) Handles ListViewTraining.ItemDataBound
     Dim list As ListView = TryCast(sender, ListView)
     If e.Item.ItemType = ListViewItemType.DataItem Then
         Dim FormatLabelformating As Label = DirectCast(e.Item.FindControl("FormatLabel"), Label)
         Dim ItemNumberLabelformating As Label = DirectCast(e.Item.FindControl("ItemNumberLabel"), Label)
         Dim TrainingLabelformating As Label = DirectCast(e.Item.FindControl("TrainingLabel"), Label)
         Dim StartDateLabelformating As Label = DirectCast(e.Item.FindControl("StartDateLabel"), Label)
         Dim StopDateLabelformating As Label = DirectCast(e.Item.FindControl("StopDateLabel"), Label)
         Dim TrainedByLabelformating As Label = DirectCast(e.Item.FindControl("TrainedByLabel"), Label)
         Dim UpdateLabelformating As Label = DirectCast(e.Item.FindControl("UpdateLabel"), Label)
         Dim UpdatedByLabelformating As Label = DirectCast(e.Item.FindControl("UpdatedByLabel"), Label)
         'Dim nRow As System.Web.UI.WebControls.TableRow = DirectCast(e.Item.FindControl("ItemRow"), System.Web.UI.WebControls.TableRow) tried this but I get can't convert to System.Web.UI. Webcontrols
         If Not IsNothing(FormatLabelformating) Then
             If FormatLabelformating.Text = "h" Then


                 ListViewTraining.Items(e.Item).BackColor = Color.Aqua

                 FormatLabelformating.ForeColor = Color.DarkBlue
                 FormatLabelformating.Font.Bold = True
                 ItemNumberLabelformating.ForeColor = Color.DarkBlue
                 ItemNumberLabelformating.Font.Bold = True
                 TrainingLabelformating.ForeColor = Color.DarkBlue
                 TrainingLabelformating.Font.Bold = True
                 StartDateLabelformating.ForeColor = Color.DarkBlue
                 StartDateLabelformating.Font.Bold = True
                 StopDateLabelformating.ForeColor = Color.DarkBlue
                 StopDateLabelformating.Font.Bold = True
                 TrainedByLabelformating.ForeColor = Color.DarkBlue
                 TrainedByLabelformating.Font.Bold = True
                 UpdateLabelformating.ForeColor = Color.DarkBlue
                 UpdateLabelformating.Font.Bold = True
                 UpdatedByLabelformating.ForeColor = Color.DarkBlue
                 UpdatedByLabelformating.Font.Bold = True
             Else
                 FormatLabelformating.ForeColor = Color.Black
                 FormatLabelformating.Font.Bold = False
                 ItemNumberLabelformating.ForeColor = Color.Black
                 ItemNumberLabelformating.Font.Bold = False
                 TrainingLabelformating.ForeColor = Color.Black
                 TrainingLabelformating.Font.Bold = False
                 StartDateLabelformating.ForeColor = Color.Black
                 StartDateLabelformating.Font.Bold = False
                 StopDateLabelformating.ForeColor = Color.Black
                 StopDateLabelformating.Font.Bold = False
                 TrainedByLabelformating.ForeColor = Color.Black
                 TrainedByLabelformating.Font.Bold = False
                 UpdateLabelformating.ForeColor = Color.Black
                 UpdateLabelformating.Font.Bold = False
                 UpdatedByLabelformating.ForeColor = Color.Black
                 UpdatedByLabelformating.Font.Bold = False

             End If
         End If
     End If
 End Sub

ASP:

ASP:

  <ItemTemplate>
    <tr id="ItemRow" runat="server" style="background-color:#FFFFFF;color: #000000; ">
        <td style=" width: 50px">
            <asp:Button ID="DeleteButton" runat="server" CommandName="Delete"  OnClientClick="return confirm('Are you certain you want to delete this item?');"
                Text="Delete" />
            <asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
        </td>
        <td>
            <asp:Label ID="ItemNumberLabel" runat="server" Width="55px"
                Text='<%# Eval("ItemNumber") %>' />
        </td>
        <td>
            <asp:Label ID="TrainingLabel" runat="server" Width="255px"
                Text='<%# Eval("Training") %>' />
        </td>
        <td>
            <asp:Label ID="StartDateLabel" runat="server" Width="100px"
                Text='<%# Eval("StartDate", "{0:dd MMM yyyy}") %>' />
        </td>
        <td>
            <asp:Label ID="StopDateLabel" runat="server" Width="100px"
                Text='<%# Eval("StopDate", "{0:dd MMM yyyy}") %>' />
        </td>
        <td>
            <asp:Label ID="TrainedByLabel" runat="server" Width="155px" Text='<%# Eval("TrainedBy") %>' />
        </td>
        <td>
            <asp:Label ID="FormatLabel" runat="server" Width="55px" Text='<%# Eval("Format") %>' />
        </td>
        <td>
            <asp:Label ID="UpdateLabel" runat="server" Text='<%# Eval("Update", "{0:dd MMM yyyy HHmm}") %>' />
        </td>
        <td>
            <asp:Label ID="UpdatedByLabel" runat="server" Text='<%# Eval("UpdatedBy") %>' />
        </td>
    </tr>
</ItemTemplate>

Any Ideas?

推荐答案

将此代码添加到ListViewTraining_ItemDataBound上以更改< TR>底色:

Add this code on ListViewTraining_ItemDataBound to change <TR> backcolor :

If e.Item.ItemType = ListViewItemType.DataItem Then
    Dim dataitem As ListViewDataItem = DirectCast(e.Item, ListViewDataItem)
    Dim tr As System.Web.UI.HtmlControls.HtmlTableRow
    tr = DirectCast(dataitem.FindControl("ItemRow"), System.Web.UI.HtmlControls.HtmlTableRow)
    tr.BgColor = "#FF0000"
End If

您只在一个实例中设置了背景色，这不起作用吗?我倾向于仔细查看调试器中的项目，我觉得您必须访问它的父项才能访问整行的tr元素.

You only set the back color in one instance, does it not work ? I would be inclined to look closely at the item in the debugger, I have a feeling you have to access it''s parent to access the tr element for the entire row.

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