![](/img/trans.png)
[英]how to remove and add css class to a specific textbox inside gridview in c# asp.net?
[英]How to implement add & remove recipients from Asp.Net GridView to TextBox using CheckBox
我陷入了這個問題,在Web應用程序上 ,我正在上傳聯系人並將其檢索到GridView中 。 我正在使用CheckBoxes從Gridview中選擇或取消選擇移動電話號碼 , 並將所選號碼存儲到用逗號“,”分隔的多行TextBox中,以發送多個SMS 。 現在的問題是,當我取消選中 GridView中的CheckBoxes時,無法從TextBox中刪除添加的數字或字符串。 請幫助我解決這個問題。 吃了我的時間!! 提前致謝..
下面是我的代碼:
protected void chkboxSelectAll_CheckedChanged(object sender, EventArgs e)
{
bool SomethingChecked = false;
CheckBox ChkBoxHeader = (CheckBox)gvcntct.HeaderRow.FindControl("chkboxSelectAll");
foreach (GridViewRow row in gvcntct.Rows)
{
CheckBox ChkBoxRows = (CheckBox)row.FindControl("chkEmp");
if (ChkBoxHeader.Checked == true)
{
ChkBoxRows.Checked = true;
}
else
{
ChkBoxRows.Checked = false;
TextBox2.Text = "";
}
}
if (!SomethingChecked)
{
TextBox2.Text = "";
}
}
您可以使用以下方法從TextBox2
刪除未經檢查的ID文本:
TextBox2.Text.Replace(string.Format(", {0}", ID), "");
這是完整的代碼(請注意,我取消了您正在使用的一些不必要的代碼,例如第三個else
語句,因為復選框為true
或false
,所以永遠無法訪問它們):
protected void chkboxSelectAll_CheckedChanged(object sender, EventArgs e)
{
TextBox2.Text = ""
CheckBox ChkBoxHeader = (CheckBox)gvcntct.HeaderRow.FindControl("chkboxSelectAll");
foreach (GridViewRow row in gvcntct.Rows)
{
CheckBox ChkBoxRows = (CheckBox)row.FindControl("chkEmp");
ChkBoxRows.Checked = ChkBoxHeader.Checked;
}
}
protected void chkEmp_CheckedChanged(object sender, EventArgs e)
{
System.Web.UI.WebControls.CheckBox CheckBox1 = (System.Web.UI.WebControls.CheckBox)sender;
GridViewRow row = (GridViewRow)CheckBox1.NamingContainer;
Label lblUser = (Label)row.FindControl("lblMake");
string ID = row.Cells[2].Text;
if (TextBox2.Text.Length > 0)
{
string[] Ids = TextBox2.Text.Split(',');
if (CheckBox1.Checked == true)
{
TextBox2.Text += string.Format(", {0}", ID);
}
else if (CheckBox1.Checked == false)
{
CheckBox ChkBoxHeader = (CheckBox)gvcntct.HeaderRow.FindControl("chkboxSelectAll");
foreach (GridViewRow rows in gvcntct.Rows)
{
CheckBox ChkBoxRows = (CheckBox)rows.FindControl("chkEmp");
ChkBoxHeader.Checked = false;
ChkBoxRows.Checked = false;
TextBox2.Text = TextBox2.Text
.Replace(string.Format(", {0}", ID), "")
.Replace(string.Format("{0}", ID), "");
}
}
else
{
TextBox2.Text = string.Empty;
int index = 0;
foreach (string s in Ids)
{
if (!s.Equals(","))
{
TextBox2.Text += string.Format("{0},", Ids[index]);
}
index++;
}
if (TextBox2.Text.Contains(","))
{
TextBox2.Text = TextBox2.Text.Replace(string.Format(", {0}", ID), "");
}
}
}
else
{
TextBox2.Text = ID;
}
}
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.