I have DDLB added value, at the time of open the window, DDLB the default display is empty, I choose DDLB one, after finish the query, and then to put DDLB to empty, what to do, namely DDLB is still empty,

CodePudding user response:

Ddlb_1. Text=' '

CodePudding user response:

If the first line is empty ddlb_1. Selectitem (1)

CodePudding user response:

If you want to remove all the options available ddlb_1. Reset (), and then according to the need to additem adding options,

CodePudding user response:

Ddlb_1. Text='tried, no effect, shows the last query, select the item, the values in the list box is defined in the properties page of DDLB sign,

CodePudding user response:

Ddlb_1. Selectitem (0)

CodePudding user response:

reference 5 floor yyoinge reply:

ddlb_1. Selectitem (0)

In truth, also HELP say so too