跨线程操作无效:控件"ddlCountry" [英] Cross-thread operation not valid: Control 'ddlCountry'
问题描述
跨线程操作无效:控制'ddlCountry'是从创建该线程的线程之外的其他线程访问的.
Cross-thread operation not valid: Control 'ddlCountry' accessed from a thread other than the thread it was created on.
尝试设置以下字符串时出现此错误.
I get this error when trying to set the below string.
strSendData = "RGRG"
strSendData = "RGSTR"
+ txtUserName.Text
+ txtUserName.Text
+ " |" + txtPassword.Text
+ "|" + txtPassword.Text
+ " |" + txtEmail.Text
+ "|" + txtEmail.Text
+ " |" + txtFName.Text
+ "|" + txtFName.Text
+ " |" + txtLName.Text
+ "|" + txtLName.Text
+ " |" + ddlCountry.SelectedValue
+ "|" + ddlCountry.SelectedValue
+ " |" + ddlState.SelectedValue;
ddlState做同样的事情.我想要做的就是获取值，而不是将ddlCountry或State设置为任何值.网上唯一的例子是设置ddl不获取其值的方法.为什么我只用ddl而不是字符串中的文本框也有问题.
谢谢
Thanks
推荐答案
您无法从创建控件的线程之外的其他线程访问控件
you cannot access control from other thread than one that created control.
在此处查看如何使用匿名委托进行工作
see here how you should work using anonymous delegate
http://www.galcho.com/Blog/PermaLink.aspx?guid=fd83be7a-30a6-4b0a-b8da-36326cf68b80
希望这会有所帮助
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