在code呼叫的window.onload函数后面不工作 [英] Call window.onload function in code behind not working

问题描述

我写了一个js函数在ASPX像下面

I have written a js function in aspx like below

    window.onload = function () {
        document.getElementById('grid-overlay').style.display = 'block';
    }

现在我想后面调用code此功能。我试着象下面这样： -

Now I want to call this function in code behind. I tried like below:-

 if (dtmkey.Rows.Count > 0)
   {
       HidMode.Value = "M";
       HidMKey.Value = dtmkey.Rows[0]["mkey"].ToString();

       var scriptSource = "function onload() { alert(""); };\n";
       ScriptManager.RegisterClientScriptBlock(Page, this.GetType(), "HelpScript", scriptSource, true);  // Not working
   }

好心提示什么是错

kindly suggest what is wrong

推荐答案

的window.onload 是负载的事件处理程序 A 窗口＆安培的事件;附函数是函数将在负荷被称为事件。

window.onload is an event handler for the load event of a window & the attached function is function that will be called on load event.

此外，目前还不清楚是什么你想在这一点上做

Also it is not clear what you are trying to do at this point

// I ran this variable in console, it threw unexpected syntax
var scriptSource = "function onload() { alert(""); };\n"; //

您想在这里调用一个函数前pression？
你可以使这个修改和测试

Are you trying to call a function expression here? you can make this changes and test it

function onload(){  // This is a function expression and onload not same as window.onload
        document.getElementById('grid-overlay').style.display = 'block';
}

window.onload = function () {
        onload() // call onload function here once window has finished loading
    }

如果您正在寻找的onload 在这里你可以替换下面段

If you are looking for onload here you can replace the below snippet

var scriptSource = "function onload() { alert(""); };\n"; with `onload();`

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