C# 单击按钮时获取行的 DataKeyNames
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Getting DataKeyNames for row on button click
提问by David Tunnell
I have a gridview with buttons in each row:
我有一个网格视图，每一行都有按钮：
The buttons are in a templatefield:
按钮位于模板字段中：
<asp:GridView ID="storyGridView" runat="server" AllowSorting="True" AutoGenerateColumns="False"
BackColor="#DEBA84" BorderColor="#DEBA84" BorderStyle="None" BorderWidth="1px" CellPadding="3"
CellSpacing="2" DataKeyNames="PK_NonScrumStory" DataSourceID="SqlDataSource1">
...
<asp:TemplateField HeaderText="Actions">
<ItemTemplate>
<asp:Button ID="viewHoursButton" runat="server" Text="View Hours" OnClick="viewHoursButton_OnClick" />
<asp:Button ID="addHoursButton" runat="server" Text="Add Hours" OnClick="addHoursButton_OnClick" />
<asp:Button ID="editButton" runat="server" Text="Edit" OnClick="editButton_OnClick" />
<asp:Button ID="deleteButton" runat="server" Text="Delete" OnClick="deleteButton_OnClick" />
</ItemTemplate>
</asp:TemplateField>
How do I get the data key name on click?
如何在单击时获取数据键名称？
protected void viewHoursButton_OnClick(object sender, EventArgs e)
{
//get PK_NonScrumStory for clicked row
}
采纳答案by David Tunnell
I figured it out:
我想到了：
protected void viewHoursButton_OnClick(object sender, EventArgs e)
{
Button btn = sender as Button;
GridViewRow row = btn.NamingContainer as GridViewRow;
string pk = storyGridView.DataKeys[row.RowIndex].Values[0].ToString();
System.Diagnostics.Debug.WriteLine(pk);
}
回答by Pxtl
You're using the wrong event. Use
您使用了错误的事件。用
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.rowcommand.aspx
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.rowcommand.aspx
GridView.RowCommand - it's an event on the Grid, not on the cell. On the cell, you provide CommandName string = so instead of your OnClick event, you'd have CommandName="ViewHours".
GridView.RowCommand - 它是网格上的事件，而不是单元格上的事件。在单元格上，您提供 CommandName string = 因此您将拥有 CommandName="ViewHours" 而不是您的 OnClick 事件。
Then in your myGridView_RowCommand event handler you get one of these:
然后在您的 myGridView_RowCommand 事件处理程序中，您将获得以下其中一项：
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridviewcommandeventargs.aspx
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridviewcommandeventargs.aspx
and you put in a big switch statement on e.CommandName. Ugly, but it works.
然后在 e.CommandName 上放入一个大的 switch 语句。丑陋，但它的工作原理。
int index = Convert.ToInt32(e.CommandArgument);
that gets you your Row Index. You can use it with myGridView.DataKeys[index] to fetch DataKeys.
这让你得到你的行索引。您可以将它与 myGridView.DataKeys[index] 一起使用来获取 DataKeys。
...
...
Yeah, I know.
是的，我知道。
回答by Fals
You can bind CommandNameand CommandArgumentfor your custom Buttons, for exemple:
您可以绑定CommandName和CommandArgument为您的自定义Buttons，例如：
<asp:Button ID="deleteButton"
runat="server"
Text="Delete"
CommandName="DeleteItem"
CommandArgument="<%# ((GridViewRow) Container).RowIndex %>"
OnClick="deleteButton_OnClick" />
Then you should impletement the event storyGridView1_RowCommand, and treat every command:
然后你应该实现事件 storyGridView1_RowCommand，并处理每个命令：
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "DeleteItem")
{
// Retrieve the row index stored in the
// CommandArgument property.
int index = Convert.ToInt32(e.CommandArgument);
// Retrieve the row that contains the button
// from the Rows collection.
GridViewRow row = GridView1.Rows[index];
//Retrieve the key of the row and delete the item
}
else if(e.CommandName == "EditItem")
{
//edit the item
}
//Other commands
}
