vb.net gridview 突出显示当前行
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gridview highlighting current row
提问by SkyeBoniwell
Is there a built-in method of highlighting the currently selected row in a gridview?
是否有突出显示网格视图中当前选定行的内置方法？
Each row in my gridview has a button (via a buttonField). When the user presses this button, the background color changes...I do it like this:
我的 gridview 中的每一行都有一个按钮（通过一个 buttonField）。当用户按下此按钮时，背景颜色会发生变化……我是这样做的：
Protected Sub gvTransferOwner_RowCommand(sender As Object, e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles gvTransferOwner.RowCommand
If e.CommandName = "Select" Then
Dim index As Integer = Convert.ToInt32(e.CommandArgument)
Dim selectedRow As GridViewRow = gvTransferOwner.Rows(index)
selectedRow.Style.Add("background-color", "#ffcccc")
End If
End Sub
This highlights the row, but once the user presses the button in another row, it still retains that color in all previously-pressed rows.
这会突出显示该行，但是一旦用户按下另一行中的按钮，它仍会在所有先前按下的行中保留该颜色。
Is there a way so that only one row at a time(the currently selected row) is highlighted?
有没有办法一次只突出显示一行（当前选定的行）？
Thanks
谢谢
回答by jonhopkins
If you use a global variable to store the index of the row that is being selected, you can change that row back to the original color whenever a new row is selected.
如果您使用全局变量来存储正在选择的行的索引，则无论何时选择新行，您都可以将该行更改回原始颜色。
Dim previousSelected As Integer 'global variable to store the last selected index
Protected Sub gvTransferOwner_RowCommand(sender As Object, e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles gvTransferOwner.RowCommand
If e.CommandName = "Select" Then
Dim index As Integer = Convert.ToInt32(e.CommandArgument)
Dim selectedRow As GridViewRow = gvTransferOwner.Rows(previousSelected)
selectedRow.Style.Add("background-color", "#ffffff") 'change it back to original color
selectedRow = gvTransferOwner.Rows(index)
selectedRow.Style.Add("background-color", "#ffcccc") 'change the color of the new row
previousSelected = index
End If
End Sub
回答by Clarice Bouwer
The gridview has a SelectedIndexChanged event as well as has a GridView.SelectedRow Propertywhich you can use in conjunction with @jonhopkins' answer.
gridview 有一个 SelectedIndexChanged 事件以及一个GridView.SelectedRow 属性，您可以将其与@jonhopkins 的回答结合使用。
回答by Santosh Wavare
I do it in the SelectedIndexChangedevent and it works for me.
我在SelectedIndexChanged活动中这样做，它对我有用。
GridView1.Rows[GridView1.SelectedIndex].BackColor = Color.Yellow;
回答by Tapan
Dim previousSelected As Integer
Dim previousSelected As Integer
If e.CommandName = "Select" Then
previousSelected = GetVal(ViewState("previousSelected"))
Dim index As Integer = Convert.ToInt32(e.CommandArgument)
Dim selectedRow As GridViewRow = grvOptionset.Rows(previousSelected)
selectedRow.Style.Add("background-color", "#ffffff") 'change it back to original color
selectedRow = grvOptionset.Rows(index)
selectedRow.Style.Add("background-color", "#ffcccc") 'change the color of the new row
ViewState("previousSelected") = index
End If
回答by Tapan
Dim previousSelected As Integer 'global variable to store the last selected index
Protected Sub gvTransferOwner_RowCommand(sender As Object, e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles gvTransferOwner.RowCommand
If e.CommandName = "Select" Then
previousSelected = ViewState("previousSelected")
Dim index As Integer = Convert.ToInt32(e.CommandArgument)
Dim selectedRow As GridViewRow = gvTransferOwner.Rows(previousSelected)
selectedRow.Style.Add("background-color", "#ffffff") 'change it back to original color
selectedRow = gvTransferOwner.Rows(index)
selectedRow.Style.Add("background-color", "#ffcccc") 'change the color of the new row
ViewState("previousSelected") = index
End If
End Sub
