[英]Implementing logic from aspx.cs to aspx page
我試圖讓所有 TextBox 控件在我的 .aspx 頁面中只讀。 我在我的 aspx.cs 頁面中寫了這個:
private void SetTextBoxReadOnly(Control parent, bool readOnly)
{
// Get all TextBoxes and set the value of the ReadOnly property.
foreach (var tb in parent.Controls.OfType<TextBox>())
tb.ReadOnly = readOnly;
// Recurse through all Controls
foreach(Control c in parent.Controls)
SetReadOnly(c, readOnly);
}
顯然,我在 .aspx 頁面中有大量的 TextBoxes,例如這個:
<div class="form-group">
<asp:Label runat="server" AssociatedControlID="txtTimePointsExplained" CssClass="col-md-2 control-label">Explain why these time points:</asp:Label>
<div class="col-md-10">
<asp:TextBox ID="txtTimePointsExplained" TextMode="MultiLine" Rows="8" runat="server" CssClass="form-control"></asp:TextBox></div>
</div>
顯然它不會使我的文本框只讀。 我不認為邏輯有任何問題,這讓我相信它沒有被 .aspx 頁面解釋。
原始代碼片段中存在錯誤:
private void SetTextBoxReadOnly(Control parent, bool readOnly)
{
// Get all TextBoxes and set the value of the ReadOnly property.
foreach (var tb in parent.Controls.OfType<TextBox>())
tb.ReadOnly = readOnly;
// Recurse through all Controls
foreach(Control c in parent.Controls)
SetReadOnly(c, readOnly);
}
這里:
SetReadOnly(c, readOnly);
應該是原來的方法:
SetTextBoxReadOnly(c, readOnly);
正如大衛在評論中所說在頁面上調用這個方法(在它加載時)在 Page_Load 方法中調用這個方法:
protected void Page_Load(object sender, EventArgs e)
{
SetTextBoxReadOnly(this, true);
}
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.