如何解决具有相同值触发器的不同文本的DropDownList [英] how to solve DropDownList with Different Text with Same Value Trigger

问题描述

 <asp:DropDownList runat="server" ID="ddlRole" AutoPostBack="true" OnSelectedIndexChanged="ddlRole_SelectedIndexChanged">

  <asp:ListItem Value="Master user" Text="Aby">
</asp:ListItem>
    <asp:ListItem Value="Master user" Text="Sanjay">
     </asp:ListItem>
<asp:ListItem Value="Master user" Text="Raymond">
      </asp:ListItem>
   <asp:ListItem Value="Master user" Text="Melvyn">
              </asp:ListItem>
    </asp:DropDownList>

每当ddlRole_SelectedIndexChanged fir它显示我选择的文字为Aby



请帮助

Whenever ddlRole_SelectedIndexChanged fir its shows me slected text as Aby

Please help

推荐答案

protected void ddlRole_SelectedIndexChanged(object sender, EventArgs e) 
{ 
string _selectedText = ddlRole.SelectedItem.Text;//to get the text of selected item
if (ddlRole.SelectedItem.Value != "Operational user") 
{ 
txtUser.ReadOnly = true; 
txtUser.Text = ddlRole.SelectedItem.Text; 
ScriptManager.RegisterClientScriptBlock(Page, GetType(), "Disable", "Disable()", true); 
} 
else 
{ 
txtUser.ReadOnly = false; 
txtUser.Text = ""; 
ScriptManager.RegisterClientScriptBlock(Page, GetType(), "Enable", "Enable()", true); 
} 
ddlRole.Items.FindByText(_selectedText).Selected = true;
} 

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