Question

相关问题: 在习俗文本Box上添加习俗

In the related question I asked how I could expose OnTextChange in my custom textbox control and we resolved it by:

public event EventHandler TextChanged
{
    add { customTextBox.TextChanged += value; }
    remove { customTextBox.TextChanged -= value; }
}

在实行控制时,我正在尝试使用像现在这样变形的活动:

    <uc:CustomTextBox ID="customTextBox"
                      runat="server"
                      OnTextChanged="CustomTextBox_OnTextChanged">
    </uc:CustomTextBox>

这似乎从来不是为了:

    protected void CustomTextBox_OnTextChanged(System.EventArgs e)
    {
     // Do something here
    }

或击中:

    protected void CustomTextBox_OnTextChanged(object sender, EventArgs e)
    {
     // Do something here
    }

我做了什么错误,我失踪了什么,这是我试图在这里做一切的最佳方式或共同做法?

Answer 1

页: 1 AutoPostBack=True 文本Box的财产。

如果你设计网络用户控制,那么就简单地界定了公共财产,以在用户控制代码中设定<代码>True/False价值的CustomTextB:



public   bool AutoPostBack
    {
        get
        {
            return CustomTextBox.AutoPostBack;
        }
        set
        {
            CustomTextbox.AutoPostBack = value;
        }
    }


If you are developing a custom web control then you can to override the AutoPostBack property for the customization. If you don t want to customize AutoPostBack property then don t override it.

如果你凌驾于自治财产,请援引超级类别违约执行。

public override  bool AutoPostBack
    {
        get
        {
            return base.AutoPostBack;
        }
        set
        {
            base.AutoPostBack = value;
        }
    }

Answer 2

In order for OnTextChanged to fire, you need to specify AutoPostBack="true" on the TextBox.

在业余标记中:

<uc:CustomTextBox ID="customTextBox" runat="server" OnTextChanged="CustomTextBox_OnTextChanged" AutoPostBack="true"></uc:CustomTextBox>

海关数据系统用户控制编码背后:

public bool AutoPostBack 
{ 
    get 
    { 
        //the textbox in the user control
        return customTextBox.AutoPostBack; 
    } 
    set 
    { 
        customTextBox.AutoPostBack = value; 
    } 
}

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