[英]How can I call a javascript function from server side
我嘗試從其他 c# 函數調用 javascript 函數,但我的控制台出現錯誤
未捕獲的 ReferenceError: updateState 未定義
.ascx 文件
<script>
function updateState(){
console.log("test")
}
</script>
<button runat="server" ID="Btn_Modify_state" onserverclick="Btn_Modify_state_Click">
<i class="fas fa-edit"></i>
</button>
.ascx.cs 文件
protected void Btn_Modify_state_Click(object sender, EventArgs e)
{
ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "script", "updateState();", true);
}
我不知道如何解決這個問題有人有任何想法嗎?
您可能忘記了注冊腳本。 請嘗試這種不同的方法。
<script runat="server">
public void Page_Load(Object sender, EventArgs e)
{
// Define the name and type of the client script on the page.
String csName = "updateState";
Type csType = this.GetType();
// Get a ClientScriptManager reference from the Page class.
ClientScriptManager cs = Page.ClientScript;
// Check to see if the client script is already registered.
if (!cs.IsClientScriptBlockRegistered(csType, csName))
{
// If not, redefine your script
var csText = $"
<script type=\"text/javascript\">
function updateState(){
console.log("test")
}
</script>";
cs.RegisterClientScriptBlock(csType, csName, csText.ToString());
}
}
</script>
來源: https : //docs.microsoft.com/en-us/dotnet/api/system.web.ui.clientscriptmanager.registerclientscriptblock?view=netframework-4.8
解決方案是這樣做:
.ascx.cs
protected void Btn_Modify_state_Click(object sender, EventArgs e)
{
Page.ClientScript.RegisterStartupScript(this.GetType(), "script", "<script type='text/javascript'>updateState();</script>");
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.