Radio or radiobutton radio in GridView? ? ? ?

奥斯卡影刃

Case 1:
If you use the radiobutton control in the gridview template column, you can implement single-selection rows through coding. When you need to write code in the page code, and it will cause the page to refresh (groupname is set to the same useless), how can I implement a single-radiobutton Button without refreshing the page? ? ?

Case two:
If radio is written in the source of the page, radio selection in gridview can be realized, and the primary key value of the row can be obtained, but the problem is: if I select a radio, I want to keep the selected state of the radio after refreshing the page , How to achieve it? ? ?


Wait online. . . . . . . . . . . . .

不大不小虾米

Yeah, I encountered the same problem, waiting for the master to help

I like...

terrysx

1 Use ajax
I don’t know what kind of logic event you want to trigger, write code in the foreground, call ajax method in the background, and return false to see if you can meet your requirements

2. .net is stateless. Save the number of selected rows in viewstate, and then in the onRowDataBound event
Compare e.Row.RowIndex with him selected and see if it is possible

奥斯卡影刃

1. Do I have to use ajax? Can be achieved without
2. I tried to save the state, but it needs to be implemented with code. Is it possible that the non-server control cannot save the state after the page is refreshed?

yoshiki317

.aspx is written like this
<input type="radio" id="RadSelected" name="RadSelected" value='<%#Eval("job_id").ToString().Trim()%>'>
.cs written like this
Request.Form["RadSelected"].ToString()
You can achieve the effect you want

奥斯卡影刃

This will get the value I want, but the question is how can I keep the radio selected state after the page refreshes

xxq0518

No one can give the answer yet

qqq541326415

[Quote=Quote the reply fromyoshiki317on the 5th floor:]
.aspx write like this
<input type= "radio "id= "RadSelected" name= "RadSelected "value = '<%#Eval( "job_id ").ToString().Trim()%>'>
.cs write like this
Request.Form[ "RadSelected "].ToString()
You can achieve the effect you want
[/Quote]

You can’t do this at all. I used it to directly say that there is a potential danger. The compilation fails. . .

qqq541326415

[Quote=Quote the reply fromyoshiki317on the 5th floor:]
.aspx write like this
<input type= "radio "id= "RadSelected" name= "RadSelected "value = '<%#Eval( "job_id ").ToString().Trim()%>'>
.cs write like this
[color=#FF0000]Request.Form[ "RadSelected "].ToString() [/color]
You can achieve the effect you want
[/Quote]
The red part should be Request.Form.Get("RadSelected").ToString()
that's it. . .

sfl9178

It is recommended to use ajax, I have done similar projects. Other methods are not ideal.