CODEWITHSUNDEEP
c#winforms
Kratos
Kratos

Reputation: 205

how to autofill textboxes when switching from one tab to another in c#

I am developing an application (in c# using Visual studio 2012) where i have to read a config file which is in .txt format. I am also using tab control to switch between different tab. what i want to do is that, when i click on config tab, my application should read the config file and place the data that i require into the text boxes that are present under that tab. Any help would be appreciated.

i have tried placing the code to autofill my textboxes in the form constructor and it works, but i don't want to do it through constructor because it will only read the config file when the form is created and not when i switch from one tab to another.

Upvotes: 0

Views: 826

Answers (2)

Nicolas Tyler
Nicolas Tyler

Reputation: 10552

In your design view select the entire tabControl.

Then click the events button (lightning bolt) on the properties window.

Then double click SelectedIndexChanged

here is a sample code:

private void tabControl1_SelectedIndexChanged(object sender, EventArgs e)
{
    // "First Tab Page" is the text of the tab page.
    if ((sender as TabControl).SelectedTab.Text == "First Tab Page")
    {
        string filecontents = File.ReadAllText(@"path\to\configFile.txt");
        textBox1.Text = filecontents;
    }
}

Simple?

Upvotes: 1

Harsh
Harsh

Reputation: 3751

You need to use the SelectedIndexChanged event of tab control.

tabContrl1.TabControl.SelectedIndexChanged += tabControl1_SelectedIndexChanged;

Add the event handler. Name your config tab as "ConfigTab" (Or whatever you want).

private void tabControl1_SelectedIndexChanged(Object sender, EventArgs e) {

    if (tabControl1.SelectedTab.Name.Equals("ConfigTab")) {

       //Fill textbox here

}

}

Upvotes: 1

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