如何在按钮单击时获取文本框文本存储在数据库中 [英] how to get textbox text to store in database on button click

问题描述

你好，我在asp.net中遇到这个小问题



i有这样的代码...

 <   asp：DataList     ID   =  DataList1    runat   = 服务器   >  
 
 
 <   ItemTemplate  >  
 <   asp：标签    ID   =  Label2    runat   = 服务器   正文  ='  <％ #Eval（   status）％> '  >  <   / asp：Label  >  
 <   br     /  >  <   hr     /  >  
 
 <   asp：DataList     ID   =  DataList2   < span class =code-attribute> runat   =  server    DataSource   ='  <％ #getCommentsByStatID（Eval（  statid ）。ToString（））％> ' >  
 <   ItemTemp迟到 >  
 <   asp：标签    ID   =  Label1    runat   =  server   文本  ='  <％ #Eval（  comment）％> ' >  <   / asp：标签 >  
 <   / ItemTemplate  >  
 <   / asp：DataList  >  
 
 <   asp：TextBox     ID   =  txtcomment    runat   =  server   文字  ='  <％ #Container.DataItem ％> '   >  <   / asp：TextBox  >  
 <   asp：按钮    ID   =  btncomment    runat   =  server   文本  = 发布    PostBackUrl   ='  <％＃ 〜/ Default2.aspx？statusid = + Eval（  statid）％> '    /  >  
 
 <   / ItemTemplate  >  
 
 <   SeparatorTemplate  < span class =code-keyword>>  <   hr     /  >  <   / SeparatorTemplate  >  
 
 
 <   / asp：DataList  >  

按钮btncomment是点击，我需要通过知道状态ID来获取保存在数据库中的txtcomment文本..我可以从查询字符串中获取状态ID但我无法获取txtcomment的文本..



请帮助一些合适的代码或链接.........



感谢

解决方案

在你的datalist上添加ItemCommand Event，如下所示。

 <   asp：datalist     id   =  DataList1    runat   =  server    onitemcommand   =  DataList1_ItemCommand    xmlns：asp   = ＃未知 >  
 <   itemtemplate  >  
 <   asp：textbox     id   =   txtcomment    runat   =  server    text   =   >  <   / asp：textbox  >  
 < ;   / itemtemplate  >  
 <   / asp：datalist  >  

然后在项目命令事件中，您可以轻松获取文本框的文本。

  protected   void  DataList1_ItemCommand（ object  source，DataListCommandEventArgs e）
 {
  if  （e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem）
 {
 TextBox txtComments =（TextBox）e.Item.FindControl（  txtcomment）; 
 
  string  Comments = txtComments.Text;  //  此处您可以从文本框中获取文字 
 
} 
 
} 
 

接受解决方案，如果它可以帮助你的

hello frens, i have this small problem in asp.net

i have a code like this...

<asp:DataList ID="DataList1" runat="server" >


          <ItemTemplate>
              <asp:Label ID="Label2" runat="server" Text='<%#Eval("status") %>'></asp:Label>
              <br />    <hr />

              <asp:DataList ID="DataList2" runat="server" DataSource='<%#getCommentsByStatID(Eval("statid").ToString()) %>'>
                  <ItemTemplate>
                      <asp:Label ID="Label1" runat="server" Text='<%#Eval("comment") %>'></asp:Label>
                  </ItemTemplate>
              </asp:DataList>

              <asp:TextBox ID="txtcomment" runat="server" Text='<%# Container.DataItem %>' ></asp:TextBox>
              <asp:Button ID="btncomment" runat="server" Text="Post" PostBackUrl='<%# "~/Default2.aspx?statusid="+Eval("statid")%>' />

          </ItemTemplate>

          <SeparatorTemplate><hr /></SeparatorTemplate>


      </asp:DataList>

when the button btncomment is clicked, i need to get the text of txtcomment saved in the database by knowing the status id.. i can get the status id from the query string but i cannot get the text of txtcomment ..

please help with some suitable codes or links .........

with thanks

解决方案

Add ItemCommand Event on your datalist as given below.

<asp:datalist id="DataList1" runat="server" onitemcommand="DataList1_ItemCommand" xmlns:asp="#unknown">
            <itemtemplate>
                <asp:textbox id="txtcomment" runat="server" text=""></asp:textbox>
            </itemtemplate>
</asp:datalist>

Then on item command event, you can get text of your textbox easily.

protected void DataList1_ItemCommand(object source, DataListCommandEventArgs e)
{
    if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
    {
        TextBox txtComments = (TextBox)e.Item.FindControl("txtcomment");

        string Comments = txtComments.Text; // here you can get text from your textbox

    }

}

Accept Solution if it helps you.

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