asp.net Textbox服务器控件 复制代码 代码如下:
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textChange的事件代码如下: 复制代码 代码如下:protected void txtNum2_TextChanged(object sender, EventArgs e) { if (txtNum2.Text.Length == 0) { //Page.RegisterClientScriptBlock("",""); Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "", ""); txtNum2.Focus(); } else { int result; bool n1 = Information.IsNumeric(txtNum2.Text.Trim()); if (n1) { result = int.Parse(txtNum2.Text.Trim()) % 2; if (result == 0) { txtSum.Text = "偶数"; } else { txtSum.Text = "奇数"; } } } }}