C# 如何在网格视图 asp.net 中为按钮字段创建单击事件
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How to make click event for button field in grid view asp.net
提问by daidai
I have dynamically created GridViewin my .aspx from codebehind. I inserted a sql table in that GridView. Then I added one more button filed column. Here is the code:
我GridView从代码隐藏在我的 .aspx 中动态创建。我在其中插入了一个 sql 表GridView。然后我又添加了一个按钮字段。这是代码：
ButtonField bf = new ButtonField();
bf.Text = "Details";
bf.ButtonType = ButtonType.Button;
DataTable table = new DataTable();
table.Load(reader);
GridView gv = new GridView();
gv.Columns.Add(bf);
gv.DataSource = table;
gv.DataBind();
Now I want to add a MouseClickEventon this ButtonField, but there is no property Clickor MouseClick. Is there any way to do this?
现在我想MouseClickEvent在这个 ButtonField 上添加一个，但没有属性Click或MouseClick. 有没有办法做到这一点？
回答by Saad Alothman
When it comes to gridviews that each row have an action (like edit button, or details), I personally like to do the following:
当涉及到每行都有一个操作（如编辑按钮或详细信息）的 gridviews 时，我个人喜欢执行以下操作：
- Have a hidden button right after the GridView, this button has an onclick event (let's say
OnDetailsButtonClick). So this button is the one that will be making the submission. - Create a Hidden Field that will be filled when an action from a row is clicked, so that the server side code will pick up which rowId that the action was performed on
- Make every button in the gridview to have OnClientClick (lets say the javascript function called
goToDetails(entityId)) so the javascript function will look like:
- 在 GridView 后面有一个隐藏的按钮，这个按钮有一个 onclick 事件（比如说
OnDetailsButtonClick）。所以这个按钮是将提交的按钮。 - 创建一个隐藏字段，当单击行中的操作时将填充该字段，以便服务器端代码将选择执行该操作的 rowId
- 使 gridview 中的每个按钮都具有 OnClientClick（让我们说调用的 javascript 函数
goToDetails(entityId)），这样 javascript 函数将如下所示：
function goToDetails(entityId){
$("#HiddenEntityId").val(entityId);
$("#Button").click()
}
from the code behind you can get the row/Entity ID from the hidden field:
从后面的代码中，您可以从隐藏字段中获取行/实体 ID：
private void OnDetailsButton_Click(object sender, EventArgs e){
string entityId = HiddenEntityId.Value;
//now you can do whatever you like
}
回答by afzalulh
For a ButtonFieldinside GridViewyou specify CommandName:
对于ButtonField内部，GridView您指定CommandName：
bf.CommandName = "MyCommand";
And access it like:
并像这样访问它：
void gv_RowCommand(Object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "MyCommand")
{
}
}
You may find it useful: ButtonField.CommandName Property.
您可能会发现它很有用：ButtonField.CommandName 属性。
回答by Josh Harris
You have to use 'Gridview.RowCommand' handle to enable custom script for a button in a ButtonField..
您必须使用“Gridview.RowCommand”句柄为 ButtonField 中的按钮启用自定义脚本。
I.e.
IE
1) add a 'CommandName' property to your buttonfield, this example assumes the CommandName = "Delete"
1) 将“CommandName”属性添加到您的按钮字段，此示例假定 CommandName = "Delete"
2)
2)
Protected Sub GridView1_buttonsclicked(sender As Object, e As GridViewCommandEventArgs) Handles GridView1.RowCommand
If e.CommandName = "Delete" Then
'Delete clicked with index of " + e.CommandArgument.ToString
'Your code here, using the e.commandargument as the gridview index, then select column values using that index.
End If
End Sub
