GridView控件:获取datakey的行上按一下按钮 [英] GridView: Get datakey of the row on button click
问题描述
我怎样才能得到一个GridView行的DataKeyName的值时,我有一排有一个onclick事件里面的按钮。在我的按钮我OnClick事件我想那里的按钮所在行的的DataKeyName。
这可能吗?
< ASP:GridView控件ID =myGridView运行=服务器>
<柱体和GT;
< ASP:的TemplateField的HeaderText =列1>
<&ItemTemplate中GT;
...一堆HTML codeS的
< ASP:按钮的ID =myButton的UseSubmitBehavior =假=服务器文本=点击我的onclick =btnClick_Click/>
< / ItemTemplate中>
< / ASP:的TemplateField>
< /专栏>
< / ASP:GridView的>
在我的codebehind
保护无效btnClick_Click(对象发件人,EventArgs的发送)
{
//我怎样才能得到该按钮被点击行的DataKeyName价值?
}
当我与一个GridView的工作,我通常不使用按钮的OnClick
事件。相反,我使用的GridView中 OnRowCommand
事件和数据绑定到按钮的 CommandArgument
属性。你可以从事件处理程序的 GridViewCommandEventArgs
参数命令参数。
您可以使用的CommandName
参数绑定任意的字符串每个按钮的任何不同的各种的区别开来。请注意,某些命令名称已经用于其他活动,如编辑,更新,取消,选择和删除。
更新:
下面是一个例子,假设数据密钥被称为ID:
< ASP:GridView控件ID =myGridView=服务器OnRowCommand =myGridView_RowCommand>
<柱体和GT;
< ASP:的TemplateField的HeaderText =列1>
<&ItemTemplate中GT;
...一堆HTML codeS的
< ASP:按钮的ID =myButton的=服务器文本=点击我的CommandName =ClickMeCommandArgument ='<%#的eval(ID)%GT;' />
< / ItemTemplate中>
< / ASP:的TemplateField>
< /专栏>
< / ASP:GridView的>
和在code-背后:
保护无效myGridView_RowCommand(对象发件人,GridViewCommandEventArgs E)
{
VAR datakey = e.CommandArgument;
// ...
}
How can I get a value of the DataKeyName of a GridView Row when I have a button inside a row that have an OnClick event. In my OnClick event of my button I want to get a the DataKeyName of the row where the button resides.
Is this possible?
<asp:GridView ID="myGridView" run="server">
<Columns>
<asp:TemplateField HeaderText="Column 1">
<ItemTemplate>
... bunch of html codes
<asp:Button ID="myButton" UseSubmitBehavior="false" runat="server" Text="Click Me" onclick="btnClick_Click" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
In my codebehind
protected void btnClick_Click(object sender, EventArgs e)
{
// How can I get the DataKeyName value of the Row that the Button was clicked?
}
When I'm working with a GridView, I usually do not use the OnClick
event for buttons. Instead, I use the OnRowCommand
event on the GridView, and bind data to the CommandArgument
property of the button. You can retrieve the command argument from the GridViewCommandEventArgs
parameter of the event handler.
You can use the CommandName
parameter to bind an arbitrary string to distinguish between any different kinds of buttons you have. Note that some command names are already used for other events, such as "Edit", "Update", "Cancel", "Select" and "Delete".
Update:
Here is an example, assuming the data key is called "ID":
<asp:GridView ID="myGridView" runat="server" OnRowCommand="myGridView_RowCommand">
<Columns>
<asp:TemplateField HeaderText="Column 1">
<ItemTemplate>
... bunch of html codes
<asp:Button ID="myButton" runat="server" Text="Click Me" CommandName="ClickMe" CommandArgument='<%# Eval("ID") %>' />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
And in the code-behind:
protected void myGridView_RowCommand(object sender, GridViewCommandEventArgs e)
{
var datakey = e.CommandArgument;
// ...
}
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