When the image button is clicked, the page is not refreshed, only the client script is executed.

cq_blue

If the problem. Solve to 30

iverwind

Add return: false to the imagebutton

Such as:
<imagebutton ...........; return false;>

摩羯可乐

if(!ispostback)
{
  Imagebutton1.Attributes.Add("onclick","return a()");
}

shenmue024

this.ImageButton1.Attributes.Add("onclick","Script;return false");

dydcool

Add the client-side event of your picture button in Page_Load:
Imagebutton1.Attributes.Add("onclick","return btnclick()");

function btnclick()
{
    ...
    return false;
}

cloud1412

shenmue024positive solution

xwgjyhl

It’s better to put a picture on the client and add a click event
Or put it in the <a></a> tag.