将值从组合框传递到文本框 [英] passing values from combobox to textboxes

问题描述

我正在使用桌面应用程序，我遇到的情况是将值成员和显示成员传递给组合框。现在，当我单击一个组合框时，我希望值成员显示在一个文本框上，显示成员显示在另一个文本框上。我怎样才能做到这一点？到目前为止，我的代码看起来像这些

  Dim  ds  As  新 DataSet 
  Dim  da 作为 新 SqlDataAdapter 
  Dim  cmd < span class =code-keyword> As  新 SqlCommand 
 
 cmd.CommandText =   [AP249_Falsifikati]。[ProcGetDostavuvaci] 
 cmd.CommandType = CommandType.StoredProcedure 
 cmd.Connection = con 
 
 cmd.Parameters.AddWithValue（  @ TipDostavuvac，TipDostavuvac）
 cmd.Parameters.AddWithValue（  @ Datum，DatumPrimanje）
 
 da.SelectCommand = cmd 
 da.Fill（ds，  Tabela ）
 
 
 cmbDostavuvaci.Visible =  True  
 cmbDostavuvaci.DataSource = ds.Tables（ 0 ）。DefaultView 
 cmbDostavuvaci.ValueMember =   MatBR 
 cmbDostavuvaci.DisplayMember =   Naziv 

解决方案

正如我从您的代码中理解的那样，您可以通过这种方式填充组合框。

并且知道你想把所选的值放在文本框中。

在c＃中它将是：

 String s = cmbDostavuvaci.SelectedItem.ToString（）; 
 

你好，



因为你说你要展示点击组合框后，在文本框中显示值成员和显示成员。您可以使用 ComboBox.OnSelectedIndexChanged [^ ]完成此任务的方法。以下代码段显示了这一点。

  private   void  cmbDostavuvaci_OnSelectedIndexChanged（ Object  sender，EventArgs e）{
 txtValue.Text = cmbDostavuvaci.SelectedValue.ToString（）; 
 txtDisplay.Text = cmbDostavuvaci.SelectedText; 
} 

可以找到一个详细的例子此处 [ ^ ]。



问候，

http://stackoverflow.com/questions/16673551/value-member-in-textbox-and-display-member-in-组合框 [ ^ ]

I am working on a desktop application, and I have a situation where I pass a value member and a display member to a combobox. Now when I click a combobox I want the value member to show on one text box and the display member on the another text box. How can I do that? So far my code looks like these

Dim ds As New DataSet
        Dim da As New SqlDataAdapter
        Dim cmd As New SqlCommand

        cmd.CommandText = "[AP249_Falsifikati].[ProcGetDostavuvaci]"
        cmd.CommandType = CommandType.StoredProcedure
        cmd.Connection = con

        cmd.Parameters.AddWithValue("@TipDostavuvac", TipDostavuvac)
        cmd.Parameters.AddWithValue("@Datum", DatumPrimanje)

        da.SelectCommand = cmd
        da.Fill(ds, "Tabela")


        cmbDostavuvaci.Visible = True
        cmbDostavuvaci.DataSource = ds.Tables(0).DefaultView
        cmbDostavuvaci.ValueMember = "MatBR"
        cmbDostavuvaci.DisplayMember = "Naziv"

解决方案

As i understand from your code, in this way you fill the combobox.
And know you want put the selected value in textbox.
in c# it will be:

String s = cmbDostavuvaci.SelectedItem.ToString();

Hello,

Since you are saying that you want to show the value member and display member in the textboxes upon click of the combobox. You can use ComboBox.OnSelectedIndexChanged[^] Method to accomplish this. The following code snippet shows this.

private void cmbDostavuvaci_OnSelectedIndexChanged(Object sender, EventArgs e) {
    txtValue.Text = cmbDostavuvaci.SelectedValue.ToString();
    txtDisplay.Text = cmbDostavuvaci.SelectedText;
}

A detailed example can be found here[^].

Regards,

http://stackoverflow.com/questions/16673551/value-member-in-textbox-and-display-member-in-combobox[^]

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