如何将所选值设置为C#中所选项目的下拉列表 [英] How to set selected value to dropdown by selected item in C#
本文介绍了如何将所选值设置为C#中所选项目的下拉列表的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
<pre>I'm trying to set selected value to dropdownlist. I can do it by selectedvalue property but i want to do it by selected item not by selected value because my datatextfield and datavaluefield are different.Please help in this
我尝试过:
What I have tried:
ddlcompany.selectedValue=session["companyname"].ToString();
this works but I want it by selected item property
推荐答案
按文字选择
Select by Text
string text = "SomeText";
var item = ddlcompany.Items.FindByText(text);
if(item!= null)
item.Selected = true;
按价值选择
Select by Value
string value = "SomeValue";
var item = ddlcompany.Items.FindByValue(value);
if (item != null)
item.Selected = true;
您只需使用此方法FindByText。
Hi simply you need to use this method FindByText.
ddlcompany.Items.FindByText(session["companyname"].ToString()).Selected = true;
注意:我假设那个会话[ companyname]是datatextfield值。
Note: I m assuming that session["companyname"]is datatextfield value.
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