绑定组合框与文本框 | 绑定组合框与文本框

本文介绍了绑定组合框与文本框的处理方法，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

你好

i希望在combox中显示id及其在文本框中的值（意思是它的名字）

为此目的我的代码如下..

hello
i want to display id in combox and their value (means its name) in textbox
for that purpose i did bellow code..

string Query = "select id, name from LateFee";
           cmd = new SqlCommand(Query, con);

               //con.Open();

               dr = cmd.ExecuteReader();
               DataTable dt = new DataTable();
               dt.Columns.Add("id", typeof(string));
               //dt.Columns.Add("name", typeof(string));
               dt.Load(dr);
               comboBox1.ValueMember = "id";
               comboBox1.DisplayMember = "id";

               comboBox1.DataSource = dt;
               binding = new Binding("Text", comboBox1, "Text");
               textBox1.DataBindings.Add(binding);

但是当我选择id时，在combox中讨价还价，在文本框中id只出现但我想要文本框名称应该出现。

我该怎么办???

but what is happing that in combox when i select id,in text box id is only appear but i want in textbox name should appear.
what should i do???

推荐答案

//dt.Columns.Add("name", typeof(string));

<<取消注释。

2）

<< uncomment that out.
2)

comboBox1.ValueMember = "id";

应为

comboBox1.ValueMember = "name";

3）我认为您需要更改绑定：

3)I think you need to change the binding from:

new Binding("Text", comboBox1, "Text");

to：

to:

new Binding("Text", comboBox1, "SelectedValue");

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